46.7F
Current conditions from King Hill
Updated every 5 minutes
 
  Monday May 27, 2019

Westford: May 2019
LOCAL CLIMATOLOGICAL DATA Monthly Summary
May 2019
Station: Westford Latitude: 44° 37' 38" N Longitude: 73° 02' 29" W Elevation (ground): 850 feet Time Zone: Eastern +--+-------------------------------+----+---------+---------+--+-----------+--------------------+-----------------------------+------+ | | Temperature | |Deg. Days|Precip Ty| | Precip | Pressure | Wind |Solar | | +------+------+------+------+---+ Hu-+----+----+1 fog | S+-----+-----+ Adj. to Sea Level +----+----+---+-------+-------+------+ | | M | M | A | | |mid-| H | C |2 hvy fog| n| | Ice +------+------+------+ Avg| Res|Res| Peak |2Minute| Mean | | | a | i | v | | D | ity| e | o |3 thunder| o|Water| plts| | | | | | +---+---+---+---+ W | | | x | n | e | | e | | a | o |4 ice plt| w| | | | | | S | S | | S | | S | | a | | D| i | i | r | M | w | M | t | l |5 hail | | E | S | | | M | p | p | | p | | p | | t | | a| m | m | a | e | | e | i | i |6 glaze | C| q | n | M | M | e | e | e | D | e | D | e | D | t | | t| u | u | g | a | P | a | n | n |7 duststm| v| u | o | a | i | a | e | e | i | e | i | e | i | s | | e| m | m | e | n | t | n | g | g |8 smk, hz| r| v | w | x | n | n | d | d | r | d | r | d | r | m² | | | | | | | | | | |9 blw snw| | | | | | | | | | | | | | | | 1| 2 | 3 | 4A | 4B | 5 | 6 | 7 | 8 | 9 |10| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18| 19| 20| 21| 22| 23 | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |01| 45.3 | 37.0 | 41.2*| 40.7 | 27| 59| 24| 0|.........| 0| 0.12| 0.0| 30.46| 30.07|30.330| 0.3| 0.2|237| 11| N| 7|248| 81 | |02| 43.6 | 40.1 | 41.8 | 42.1 | 41| 96| 23| 0|.2.......| 0| 0.14| 0.0| 30.16| 30.03|30.107| 0.2| 0.1|283| 11| S| 6|204| 46 | |03| 51.7 | 42.7 | 47.2 | 46.9 | 46| 97| 17| 0|.2.......| 0| 0.38| 0.0| 30.13| 29.91|29.989| 0.2| 0.2|201| 13| S| 6|219| 38 | |04| 57.9 | 42.9 | 50.4 | 48.4 | 46| 91| 14| 0|.2.......| 0| 0.03| 0.0| 29.94| 29.84|29.894| 0.1| 0.0|337| 8| NW| 5|304| 101 | |05| 67.5 | 39.0 | 53.3 | 53.2 | 44| 73| 11| 0|.........| 0| 0.00| 0.0| 29.90| 29.78|29.847| 0.5| 0.2|259| 13| NE| 7|211| 239 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 74.7 | 43.4 | 59.0 | 59.4 | 47| 68| 6| 0|.........| 0| 0.00| 0.0| 29.93| 29.84|29.892| 0.4| 0.3|215| 16| S| 8|208| 226 | |07| 59.7 | 44.3 | 52.0 | 54.0 | 48| 82| 13| 0|.........| 0| 0.37| 0.0| 30.15| 29.93|30.018| 1.7| 1.4|221| 16| S| 10|213| 76 | |08| 52.7 | 31.6*| 42.2 | 42.3 | 30| 63| 22| 0|.........| 0| 0.00| 0.0| 30.34| 30.15|30.286| 1.2| 1.2|338| 18| NW| 10|301| 308 | |09| 63.5 | 32.3 | 47.9 | 48.9 | 33| 58| 17| 0|..3......| 0| 0.10| 0.0| 30.36| 30.01|30.224| 0.8| 0.6|214| 20|SSW| 8|208| 209 | |10| 60.7 | 45.6 | 53.2 | 51.5 | 48| 89| 11| 0|.........| 0| 1.62| 0.0| 30.02| 29.75|29.870| 4.9| 4.3|216| 32|WNW| 20|286| 59 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 54.1 | 38.0 | 46.0 | 46.6 | 37| 71| 19| 0|.........| 0| T | 0.0| 30.06| 29.88|30.003| 2.0| 1.9|314| 24|WNW| 15|299| 218 | |12| 55.8 | 36.9 | 46.3 | 47.2 | 35| 63| 18| 0|.........| 0| 0.00| 0.0| 30.06| 29.88|29.977| 0.2| 0.2|307| 9| W| 5|304| 151 | |13| 59.6 | 39.9 | 49.8 | 50.2 | 37| 62| 15| 0|.........| 0| 0.23| 0.0| 29.90| 29.78|29.852| 0.7| 0.7|190| 15|WSW| 9|195| 131 | |14| 47.3 | 36.2 | 41.8 | 40.6 | 38| 91| 23| 0|.........| 0| 0.40| 0.0| 29.86| 29.79|29.817| 0.3| 0.1|355| 10|WNW| 6|288| 117 | |15| 58.0 | 39.2 | 48.6 | 47.1 | 40| 78| 16| 0|.........| 0| 0.26| 0.0| 29.81| 29.73|29.773| 0.7| 0.7|321| 19| W| 9|287| 196 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 61.7 | 40.7 | 51.2 | 50.1 | 43| 78| 13| 0|.........| 0| 0.00| 0.0| 29.85| 29.75|29.798| 0.2| 0.2|305| 15| W| 9|294| 197 | |17| 69.7 | 44.7 | 57.2 | 53.6 | 47| 80| 7| 0|.........| 0| 0.17| 0.0| 29.80| 29.55|29.678| 1.8| 1.3|289| 27| NW| 14|322| 218 | |18| 61.1 | 45.1 | 53.1 | 51.2 | 43| 73| 12| 0|.........| 0| 0.00| 0.0| 30.04| 29.78|29.937| 1.1| 1.0|301| 19|WNW| 11|305| 170 | |19| 76.9*| 49.3 | 63.1 | 59.1 | 53| 81| 2| 0|..3......| 0| 0.18| 0.0| 30.03| 29.71|29.862| 0.4| 0.3|224| 19| W| 10|265| 149 | |20| 74.8 | 50.6 | 62.7 | 64.8 | 58| 81| 2| 0|..3......| 0| 0.42| 0.0| 29.73| 29.57|29.631| 3.0| 2.8|246| 26| W| 13|277| 142 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 57.2 | 44.0 | 50.6 | 49.4 | 41| 73| 14| 0|.........| 0| 0.02| 0.0| 30.03| 29.68|29.828| 4.0| 3.9|306| 31|WNW| 17|296| 115 | |22| 64.4 | 41.6 | 53.0 | 53.1 | 42| 66| 12| 0|.........| 0| 0.00| 0.0| 30.26| 30.03|30.166| 0.5| 0.4|336| 15| NW| 8|303| 296 | |23| 69.9 | 47.5 | 58.7 | 59.3 | 51| 75| 6| 0|.........| 0| 0.16| 0.0| 30.17| 29.57|29.895| 2.0| 2.0|211| 29|SSW| 13|192| 148 | |24| 58.6 | 44.9 | 51.8 | 53.7 | 51| 90| 13| 0|.........| 0| 0.17| 0.0| 30.11| 29.58|29.858| 1.3| 1.0|299| 21|NNE| 9|273| 57 | |25| 67.4 | 42.0 | 54.7 | 55.5 | 49| 82| 10| 0|.........| 0| 0.93| 0.0| 30.16| 29.80|30.024| 2.3| 2.3|211| 26| SW| 11|209| 193 | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 74.5 | 55.8 | 65.2*| 63.9 | 57| 79| 0| 1|.........| 0| 0.15| 0.0| 29.86| 29.75|29.783| 2.2| 1.7|233| 22| S| 11|216| 233 | |27| | | | | | | | | | | | | | | | | | | | | | | | |28| | | | | | | | | | | | | | | | | | | | | | | | |29| | | | | | | | | | | | | | | | | | | | | | | | |30| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |31| | | | | | | | | | | | | | | | | | | | | | | | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |1588.3|1095.3|------|------|---|----| 340| 1| Days | 5.85| 0.0| 30.46| 29.57|30.043| 1.3| 0.8|258| 32|WNW| 20|286| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 61.1| 42.1| 51.6 | 51.6 | 44|76.6|----|----|≥.01 Inch 18|20.33|122.2| 1 | 17 |------|----|----|---| 10 | 10 | 152| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | Season |Snow, Ice | | | | Number of Days | to Date |≥1.0 Inch 0| Greatest in 24 Hours and Dates | Greatest Depth on Ground | +------------------+-----------------+----+----+------------+--------------+-----------------+ of Snow, Ice Pellets or Ice | | Max Temperature | Min Temperature |8135| 1|Thunder 3|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 3| 1.72| 9-10| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 2 | 0 |----|----| Clear 1 Partly Cloudy 7 Cloudy 18 | +--------+---------+--------+--------+----+----+------------------------------------------+ NOTES: Units: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches. Column 4A: value is (MAX+MIN) / 2. Data in columns 4B, 5, 6, 15, 16, 23 are updated continuously, there by achieving a "true" mean. Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for 24 hours. Columns 7, 8: Degree Days heating base is 65°F, cooling base is 65°F. Data in columns 9, 10, 12 are entered manually by the station observer. Columns 17-18: Resultant wind is calculated by the vector sum of continuous wind observations. Column 23: Solar Radiation is measured in Watts/m² and is continuously averaged for 24 hours.
OBSERVATIONS AT 3-HOUR INTERVALS
May 2019: Westford
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 1 | MAY 2 | MAY 3 | | | | | |00| 0|30.36| 0.00| 37| 28| 68|21| 0| 0| 0|30.08| 0.00| 41| 39| 93|14| 0| 0| 0|30.12| 0.00| 43| 42| 97|30| 0| 0| |03| 0|30.41| 0.00| 41| 15| 35|02| 2| 8| 0|30.04| 0.00| 43| 42| 95|21| 0| 11| 0|30.08| 0.00| 43| 42| 97|30| 0| 0| |06| 11|30.42| 0.00| 37| 18| 46|03| 0| 0| 0|30.06| 0.00| 40| 39| 95|02| 0| 0| 5|30.05| 0.00| 43| 42| 97|30| 0| 0| |09| 93|30.46| 0.00| 40| 20| 44|03| 0| 0| 62|30.11| 0.00| 41| 40| 96|33| 0| 0| 79|30.02| 0.00| 47| 46| 97|17| 0| 0| |12| 371|30.40| 0.00| 45| 24| 43|25| 2| 9| 137|30.12| 0.00| 42| 40| 96|30| 0| 9| 49|29.97| 0.09| 47| 46| 97|02| 0| 0| |15| 98|30.36| 0.00| 39| 31| 73|30| 0| 0| 127|30.13| 0.00| 43| 42| 96|32| 0| 0| 109|29.92| 0.00| 50| 49| 97|19| 0| 13| |18| 19|30.26| 0.00| 41| 33| 73|35| 1| 5| 28|30.15| 0.00| 43| 42| 96|30| 0| 0| 32|29.92| 0.00| 52| 50| 96|21| 0| 0| |21| 0|30.11| 0.00| 45| 34| 66|18| 4| 9| 0|30.15| 0.00| 43| 42| 97|30| 0| 0| 0|29.93| 0.00| 49| 48| 96|31| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 4 | MAY 5 | MAY 6 | | | | | |00| 0|29.93| 0.00| 47| 46| 97|03| 0| 0| 0|29.87| 0.00| 43| 42| 94|35| 0| 0| 0|29.84| 0.00| 52| 48| 87|19| 0| 0| |03| 0|29.92| 0.00| 46| 45| 97|34| 0| 0| 0|29.87| 0.00| 41| 40| 96|35| 0| 0| 0|29.85| 0.00| 47| 45| 93|19| 0| 0| |06| 5|29.89| 0.00| 45| 44| 97|02| 0| 0| 19|29.88| 0.00| 40| 39| 96|35| 0| 0| 16|29.88| 0.00| 44| 42| 95|20| 0| 0| |09| 63|29.94| 0.00| 46| 45| 97|02| 0| 0| 427|29.89| 0.00| 52| 46| 80|04| 0| 8| 508|29.92| 0.00| 59| 50| 73|20| 3| 12| |12| 178|29.93| 0.00| 50| 49| 96|01| 0| 0| 953|29.87| 0.00| 61| 43| 51|05| 0| 7| 151|29.91| 0.00| 66| 48| 52|30| 0| 6| |15| 387|29.88| 0.00| 55| 48| 76|02| 0| 0| 664|29.83| 0.00| 64| 41| 43|08| 1| 6| 809|29.90| 0.00| 73| 48| 42|09| 1| 5| |18| 76|29.85| 0.00| 54| 47| 76|35| 0| 0| 171|29.79| 0.00| 64| 45| 51|27| 1| 9| 118|29.88| 0.00| 72| 44| 36|26| 0| 1| |21| 0|29.87| 0.00| 48| 45| 91|35| 0| 0| 0|29.82| 0.00| 56| 47| 72|21| 1| 6| 0|29.90| 0.00| 62| 48| 59|26| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 7 | MAY 8 | MAY 9 | | | | | |00| 0|29.93| 0.00| 60| 52| 75|20| 3| 7| 0|30.15| 0.00| 44| 37| 74|01| 2| 8| 0|30.33| 0.00| 36| 29| 77|32| 0| 0| |03| 0|29.94| 0.00| 59| 51| 74|21| 8| 15| 0|30.21| 0.00| 39| 33| 79|03| 1| 7| 0|30.34| 0.00| 35| 28| 77|34| 0| 0| |06| 9|29.95| 0.00| 57| 49| 76|20| 0| 13| 14|30.27| 0.00| 32| 27| 83|36| 0| 4| 26|30.35| 0.00| 35| 28| 75|34| 0| 0| |09| 39|29.99| 0.00| 54| 51| 91|28| 0| 0| 534|30.32| 0.00| 41| 29| 63|35| 0| 9| 425|30.36| 0.00| 48| 32| 52|03| 0| 0| |12| 44|30.03| 0.10| 50| 48| 94|32| 0| 0| 867|30.33| 0.00| 45| 31| 58|34| 3| 11| 712|30.26| 0.00| 57| 31| 37|24| 1| 8| |15| 345|30.04| 0.00| 53| 50| 90|30| 0| 0| 780|30.30| 0.00| 51| 30| 45|35| 3| 12| 492|30.17| 0.00| 60| 36| 40|28| 2| 18| |18| 128|30.06| 0.00| 57| 47| 71|28| 0| 6| 322|30.30| 0.00| 51| 29| 42|35| 2| 7| 116|30.10| 0.00| 60| 38| 45|21| 0| 5| |21| 0|30.09| 0.00| 48| 45| 90|32| 1| 7| 0|30.32| 0.00| 40| 29| 66|32| 0| 0| 0|30.06| 0.00| 50| 44| 79|17| 1| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 10 | MAY 11 | MAY 12 | | | | | |00| 0|30.02| 0.00| 52| 45| 78|18| 0| 9| 0|29.88| 0.00| 51| 44| 75|25| 1| 12| 0|30.06| 0.00| 38| 33| 83|35| 0| 0| |03| 0|29.97| 0.12| 48| 45| 91|19| 7| 15| 0|29.91| 0.00| 47| 41| 79|32| 3| 11| 0|30.04| 0.00| 38| 34| 84|35| 0| 0| |06| 0|29.95| 0.06| 46| 44| 95|19| 2| 10| 18|29.98| 0.00| 41| 37| 88|33| 0| 0| 14|30.04| 0.00| 39| 34| 84|35| 0| 0| |09| 69|29.88| 0.05| 47| 46| 95|19| 2| 12| 531|30.01| 0.00| 46| 38| 74|31| 1| 10| 265|30.03| 0.00| 48| 32| 54|01| 0| 0| |12| 53|29.81| 0.14| 50| 49| 95|20| 7| 14| 334|30.03| 0.00| 49| 38| 66|31| 0| 16| 297|30.00| 0.00| 52| 35| 51|03| 0| 0| |15| 190|29.78| 0.00| 55| 54| 94|21| 8| 22| 473|30.04| 0.00| 50| 36| 59|01| 0| 14| 334|29.94| 0.00| 55| 33| 43|30| 0| 0| |18| 35|29.76| 0.00| 59| 57| 92|16| 1| 11| 128|30.03| 0.00| 51| 34| 54|36| 0| 12| 234|29.91| 0.00| 54| 36| 49|29| 2| 5| |21| 0|29.88| 0.00| 55| 45| 69|20| 4| 20| 0|30.05| 0.00| 43| 34| 72|35| 0| 0| 0|29.89| 0.00| 49| 36| 61|28| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 13 | MAY 14 | MAY 15 | | | | | |00| 0|29.89| 0.00| 45| 37| 72|28| 0| 0| 0|29.86| 0.04| 40| 38| 92|19| 0| 0| 0|29.81| 0.00| 40| 39| 95|01| 0| 0| |03| 0|29.86| 0.00| 44| 37| 75|28| 0| 0| 0|29.82| 0.00| 38| 36| 94|01| 0| 0| 0|29.78| 0.00| 39| 38| 95|34| 0| 0| |06| 19|29.86| 0.00| 45| 35| 69|28| 0| 0| 21|29.82| 0.00| 36| 35| 95|03| 0| 5| 21|29.79| 0.00| 40| 39| 96|36| 0| 0| |09| 183|29.89| 0.00| 53| 36| 51|17| 1| 5| 186|29.83| 0.00| 39| 37| 94|05| 0| 6| 302|29.81| 0.00| 43| 41| 90|35| 0| 8| |12| 304|29.87| 0.00| 57| 35| 44|19| 0| 5| 213|29.82| 0.00| 42| 39| 88|11| 0| 0| 283|29.79| 0.00| 50| 39| 68|31| 0| 11| |15| 155|29.79| 0.00| 58| 35| 42|19| 1| 8| 520|29.80| 0.00| 46| 42| 86|27| 0| 6| 888|29.74| 0.00| 57| 40| 53|32| 1| 11| |18| 69|29.83| 0.00| 54| 38| 56|20| 3| 12| 98|29.80| 0.00| 44| 41| 89|02| 0| 8| 121|29.73| 0.00| 56| 40| 54|01| 0| 0| |21| 0|29.84| 0.00| 48| 39| 71|15| 1| 10| 0|29.82| 0.00| 41| 39| 93|01| 0| 0| 0|29.76| 0.00| 47| 41| 79|24| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 16 | MAY 17 | MAY 18 | | | | | |00| 0|29.76| 0.00| 47| 42| 83|24| 0| 0| 0|29.80| 0.00| 47| 42| 82|01| 0| 0| 0|29.78| 0.00| 49| 41| 74|29| 5| 10| |03| 0|29.76| 0.00| 43| 40| 90|24| 0| 0| 0|29.72| 0.00| 45| 40| 85|01| 0| 0| 0|29.82| 0.00| 47| 40| 78|28| 0| 7| |06| 19|29.78| 0.00| 43| 41| 95|24| 0| 0| 5|29.71| 0.04| 46| 44| 94|21| 0| 0| 9|29.88| 0.00| 45| 40| 81|29| 1| 7| |09| 109|29.83| 0.00| 47| 45| 90|29| 2| 7| 72|29.67| 0.00| 46| 45| 95|05| 0| 0| 160|29.94| 0.00| 47| 41| 79|33| 0| 9| |12| 721|29.84| 0.00| 51| 46| 82|34| 0| 0| 294|29.61| 0.00| 61| 52| 71|19| 2| 10| 311|29.98| 0.00| 53| 43| 70|22| 1| 8| |15| 965|29.81| 0.00| 59| 45| 61|31| 0| 14| 262|29.55| 0.00| 68| 55| 64|27| 0| 8| 777|29.96| 0.00| 60| 44| 54|07| 0| 4| |18| 410|29.79| 0.00| 60| 42| 51|33| 0| 0| 355|29.63| 0.00| 61| 51| 69|33| 4| 20| 70|29.99| 0.00| 56| 43| 63|06| 0| 0| |21| 0|29.81| 0.00| 49| 41| 74|01| 0| 0| 0|29.74| 0.00| 52| 47| 85|32| 1| 13| 0|30.02| 0.00| 51| 45| 80|01| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 1.20 | 2.23 | 2.91 | 3.11 | 3.12 | 3.12 | 3.12 | 3.12 | 3.12 | 3.12 | 3.12 | 3.12 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 0806 | 0809 | 0809 | 0811 | 0813 | 0813 | 0813 | 0813 | 0813 | 0813 | 0813 | 0813 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ The precipitation amounts for the indicated time intervals may occur at any time during the month. The time indicated is the ending time of the interval. Date and time are not entered for trace amounts.
OBSERVATIONS AT 3-HOUR INTERVALS
May 2019: Westford
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 19 | MAY 20 | MAY 21 | | | | | |00| 0|30.03| 0.00| 50| 45| 84|01| 0| 0| 0|29.71| 0.00| 62| 61| 96|18| 2| 14| 0|29.69| 0.00| 51| 48| 91|27| 0| 8| |03| 0|29.98| 0.00| 50| 45| 85|10| 0| 0| 0|29.67| 0.00| 63| 61| 96|20| 4| 11| 0|29.72| 0.00| 47| 43| 86|29| 4| 15| |06| 9|29.93| 0.00| 51| 46| 83|13| 0| 0| 5|29.64| 0.00| 63| 62| 96|18| 2| 11| 30|29.76| 0.00| 45| 40| 83|28| 6| 15| |09| 137|29.91| 0.00| 58| 47| 68|21| 1| 6| 227|29.63| 0.00| 66| 64| 95|21| 4| 13| 81|29.78| 0.00| 45| 38| 76|31| 3| 20| |12| 188|29.88| 0.00| 63| 54| 71|14| 0| 13| 325|29.60| 0.00| 70| 64| 81|20| 2| 16| 258|29.81| 0.00| 49| 41| 75|31| 12| 25| |15| 745|29.83| 0.00| 72| 58| 63|05| 1| 7| 155|29.59| 0.00| 71| 59| 65|29| 2| 16| 274|29.83| 0.00| 55| 41| 60|32| 9| 21| |18| 156|29.77| 0.00| 64| 61| 91|14| 0| 0| 54|29.61| 0.00| 66| 54| 66|27| 11| 23| 123|29.91| 0.00| 55| 41| 58|31| 5| 20| |21| 0|29.75| 0.05| 60| 59| 94|28| 0| 0| 0|29.63| 0.00| 61| 49| 64|25| 8| 20| 0|29.98| 0.00| 50| 41| 70|32| 1| 8| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 22 | MAY 23 | MAY 24 | | | | | |00| 0|30.03| 0.00| 49| 40| 73|33| 0| 8| 0|30.16| 0.00| 52| 44| 73|14| 0| 0| 0|29.60| 0.00| 58| 55| 92|22| 4| 10| |03| 0|30.07| 0.00| 44| 39| 82|35| 0| 4| 0|30.11| 0.00| 50| 46| 86|14| 0| 0| 0|29.59| 0.00| 58| 53| 85|28| 6| 18| |06| 25|30.16| 0.00| 42| 38| 87|02| 0| 0| 23|30.06| 0.00| 49| 45| 85|14| 0| 0| 5|29.67| 0.00| 51| 49| 95|32| 0| 14| |09| 538|30.22| 0.00| 52| 42| 68|03| 1| 10| 290|30.01| 0.00| 62| 44| 50|19| 4| 14| 37|29.80| 0.00| 50| 49| 96|33| 0| 0| |12| 877|30.23| 0.00| 58| 42| 55|34| 0| 14| 497|29.94| 0.00| 69| 51| 53|22| 4| 10| 83|29.88| 0.00| 53| 51| 93|33| 0| 13| |15| 810|30.21| 0.00| 61| 43| 51|29| 2| 13| 186|29.82| 0.00| 69| 54| 59|12| 0| 8| 97|29.96| 0.00| 56| 51| 84|04| 0| 9| |18| 167|30.19| 0.00| 62| 41| 46|31| 0| 2| 25|29.72| 0.04| 61| 58| 91|22| 6| 18| 134|30.03| 0.00| 57| 52| 83|32| 0| 2| |21| 0|30.15| 0.00| 53| 42| 66|31| 0| 0| 0|29.62| 0.00| 60| 58| 93|20| 6| 16| 0|30.08| 0.00| 51| 49| 92|31| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 25 | MAY 26 | MAY 27 | | | | | |00| 0|30.10| 0.00| 45| 44| 95|31| 0| 0| 0|29.80| 0.15| 57| 56| 95|19| 3| 15| 0|29.86| 0.00| 60| 51| 72|30| 3| 13| |03| 0|30.11| 0.00| 43| 42| 96|31| 0| 0| 0|29.75| 0.00| 56| 55| 95|22| 4| 13| | | | | | | | | | |06| 39|30.14| 0.00| 43| 42| 96|28| 0| 0| 18|29.78| 0.00| 56| 55| 96|21| 3| 10| | | | | | | | | | |09| 541|30.15| 0.00| 58| 54| 84|19| 0| 0| 540|29.75| 0.00| 64| 61| 91|22| 0| 12| | | | | | | | | | |12| 770|30.09| 0.00| 67| 52| 60|23| 2| 10| 309|29.77| 0.00| 71| 63| 77|32| 0| 9| | | | | | | | | | |15| 265|30.01| 0.00| 65| 50| 59|20| 0| 12| 287|29.78| 0.00| 72| 57| 60|31| 1| 15| | | | | | | | | | |18| 33|29.90| 0.00| 61| 51| 70|21| 3| 21| 355|29.79| 0.00| 71| 55| 57|28| 2| 11| | | | | | | | | | |21| 0|29.83| 0.00| 56| 54| 94|20| 7| 16| 0|29.83| 0.00| 60| 53| 77|31| 0| 0| | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 28 | MAY 29 | MAY 30 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 31 | | | | | | | |00| | | | | | | | | | | | |03| | | | | | | | | | | | |06| | | | | | | | | | | | |09| | | | | | | | | | | | |12| | | | | | | | | | | | |15| | | | | | | | | | | | |18| | | | | | | | | | | | |21| | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+
WEATHER NOTES SUMMARY BY HOURS
+--+-----------------------------+---------+ Wind Direction: Directions are those from which the wind is blowing, | | Averages | | indicated in tens of degrees from true North: i.e., 09 for East, 18 for | +----+------+---+---+---+-----+Resultant| South, 27 for West, and 00 or 36 for North. | | | | | | | | | Wind Speed: The observed one-minute average speed in miles-per-hour. | | | | T | | | | Wind | Wind Gust: The maximum instantaneous wind speed for the ten minute-period | | | | e | | % | W +----+----+ preceding the observation. | | | | m | D | | i | D | | Rainfall Rate: The instantaneous rainfall rate at time of observation, | | S | P | p | e | H | n | i | | calculated by timing consecutive pulses from the electronic rain | | u | r | e | w | u | d | r | | gauge and interpolating this rate for one hour. | | n | e | r | | m | | e | | | | s | s | a | P | i | S | c | S | | H| h | s | t | o | d | p | t | p | | o| i | u | u | i | i | e | i | e | | u| n | r | r | n | t | e | o | e | | r| e | e | e | t | y | d | n | d | +--+----+------+---+---+---+-----+----+----+ |00| 0|29.942| 48| 43| 84| 0.9| 25 | 0.5| |03| 0|29.936| 46| 41| 86| 1.5| 24 | 0.9| |06| 15|29.950| 44| 41| 88| 0.5| 25 | 0.4| |09| 250|29.967| 50| 43| 79| 0.9| 23 | 0.5| |12| 368|29.953| 55| 44| 70| 1.4| 26 | 0.8| |15| 431|29.922| 58| 45| 64| 1.3| 30 | 0.6| |18| 138|29.910| 57| 45| 66| 1.6| 28 | 1.0| |21| 0|29.920| 51| 44| 79| 1.2| 22 | 1.0| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
May 2019: Westford
---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | D| A.M. Hour Ending at | P.M. Hour Ending at |D a| | |a t+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+t e| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |e ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- 01| | | | | | | | | | | | | | | | | | | | | |0.02|0.09|0.01|01 02|0.03| |0.01| |0.02|0.03|0.01|0.02| | |0.01| |0.01| | | | | | | | | | | |02 03| | | | | | | | | |0.02|0.06|0.04|0.19|0.01|0.01| | | | |0.01| |0.02|0.01|0.01|03 04|0.02| | | | |0.01| | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | |0.06|0.07|0.12|0.06|0.06| | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | |0.08| | |0.02|09 10|0.03|0.05|0.08|0.16|0.24|0.21|0.13|0.17|0.08|0.01|0.05|0.11|0.20|0.09| |0.01| | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | |0.02|0.09|0.12|13 14|0.08|0.06|0.04|0.06|0.03|0.02|0.01| |0.01| | |0.02|0.01| | | | |0.02|0.02| |0.01| |0.01| |14 15| | | | | | | | | | | | | | | | | | |0.01|0.24|0.01| | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | |0.01|0.06|0.04|0.04|0.01| | | | |0.01| | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | |0.09| | |0.03| | |0.06|19 20|0.09|0.13| |0.09|0.01|0.01| |0.06|0.01| | | | |0.01| | | | | | | | | |0.01|20 | | | | | | | | | | | | | | | | | | | | | | | | | 21|0.01| | | | |0.01| | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | |0.04|0.10| | |0.02| | |23 24| | | |0.06|0.10|0.01| | | | | | | | | | | | | | | | | | |24 25| | |0.01| | | | | | | | | | | | | | | |0.02|0.04|0.08|0.06|0.37|0.35|25 | | | | | | | | | | | | | | | | | | | | | | | | | 26|0.04|0.10| | | | |0.01| | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | | | | | | | | | | | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.30|0.34|0.14|0.38|0.46|0.34|0.20|0.26|0.16|0.10|0.24|0.23|0.48|0.11|0.01|0.01|0.00|0.15|0.15|0.29|0.21|0.14|0.57|0.58|Sum ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- During a frozen precipitation event, hourly precipitation totals may not be recorded. In this case, daily amounts are typically entered in the last column (hour ending at 12 A.M.)

 
 
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