70.9F
Current conditions from King Hill
Updated every 5 minutes
 
  Friday May 14, 2021

Westford: May 2021
LOCAL CLIMATOLOGICAL DATA Monthly Summary
May 2021
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| 49.2 | 31.8 | 40.5*| 39.6 | 30| 72| 24| 0|.........| 0| 0.17| T| 29.87| 29.51|29.757| 4.6| 4.2|258| 22|WSW| 13|254| 239 | |02| 61.8 | 39.6 | 50.7 | 50.8 | 39| 64| 14| 0|.........| 0| 0.00| 0.0| 29.81| 29.57|29.656| 3.8| 2.7|234| 21| S| 14|260| 234 | |03| 49.3 | 41.1 | 45.2 | 45.0 | 36| 71| 20| 0|.........| 0| 0.04| 0.0| 29.92| 29.79|29.858| 0.2| 0.2|357| 11| W| 5|282| 50 | |04| 56.7 | 41.7 | 49.2 | 49.8 | 45| 83| 15| 0|.........| 0| 0.03| 0.0| 29.80| 29.67|29.738| 1.2| 1.1|158| 15|SSE| 8|164| 76 | |05| 55.8 | 45.4 | 50.6 | 51.1 | 49| 94| 14| 0|.........| 0| 0.90| 0.0| 29.74| 29.61|29.654| 2.5| 1.3|207| 17| W| 10|268| 47 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 56.5 | 39.7 | 48.1 | 46.9 | 35| 66| 16| 0|.........| 0| 0.02| 0.0| 29.95| 29.74|29.861| 5.3| 5.2|275| 26| W| 13|264| 281 | |07| 63.3 | 31.1*| 47.2 | 48.8 | 32| 57| 18| 0|.........| 0| 0.00| 0.0| 29.96| 29.82|29.900| 0.9| 0.5|352| 14| NW| 8| 3| 259 | |08| 56.9 | 43.0 | 50.0 | 51.4 | 37| 59| 15| 0|.........| 0| 0.00| 0.0| 29.86| 29.78|29.815| 1.3| 0.9|260| 15| W| 9|272| 136 | |09| 61.2 | 37.9 | 49.6 | 49.5 | 38| 68| 15| 0|.........| 0| 0.00| 0.0| 29.92| 29.82|29.871| 1.8| 1.6|242| 15| W| 10|253| 225 | |10| 62.8 | 44.0 | 53.4*| 52.2 | 40| 65| 11| 0|.........| 0| 0.07| 0.0| 29.90| 29.77|29.827| 2.2| 2.0|264| 16| W| 11|238| 241 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 55.3 | 39.2 | 47.3 | 45.6 | 37| 74| 18| 0|.........| 0| 0.19| 0.0| 29.93| 29.85|29.884| 4.4| 4.2|233| 28| W| 14|254| 185 | |12| 61.5 | 38.8 | 50.2 | 49.0 | 39| 73| 14| 0|.........| 0| 0.12| 0.0| 30.14| 29.93|30.048| 2.6| 2.4|262| 22| W| 11|263| 222 | |13| 68.5*| 36.2 | 52.3 | 54.4 | 36| 53| 12| 0|.........| 0| 0.00| 0.0| 30.19| 30.08|30.133| 1.7| 1.6|279| 20| W| 10|278| 314 | |14| | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |16| | | | | | | | | | | | | | | | | | | | | | | | |17| | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | |19| | | | | | | | | | | | | | | | | | | | | | | | |20| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | |23| | | | | | | | | | | | | | | | | | | | | | | | |24| | | | | | | | | | | | | | | | | | | | | | | | |25| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |26| | | | | | | | | | | | | | | | | | | | | | | | |27| | | | | | | | | | | | | | | | | | | | | | | | |28| | | | | | | | | | | | | | | | | | | | | | | | |29| | | | | | | | | | | | | | | | | | | | | | | | |30| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |31| | | | | | | | | | | | | | | | | | | | | | | | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | 758.8| 509.5|------|------|---|----| 206| 0| Days | 1.54| T | 30.19| 29.54|29.922| 2.5| 1.9|251| 28| W| 14|254| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 58.4| 39.2| 48.8 | 48.8 | 38|69.2|----|----|≥.01 Inch 8|11.23| 76.7| 13 | 1 |------|----|----|---| 11 | 11 | 193| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | 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 |7124| 0|Thunder 0|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 0| 0.90| 5 | T | 1 | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 2 | 0 |----|----| Clear 2 Partly Cloudy 4 Cloudy 7 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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 2021: 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|29.51| 0.00| 34| 32| 95|20| 5| 10| 0|29.77| 0.00| 41| 34| 77|22| 1| 9| 0|29.81| 0.00| 49| 40| 70|28| 0| 1| |03| 0|29.62| 0.00| 36| 35| 96|29| 6| 10| 0|29.64| 0.00| 40| 35| 83|17| 0| 2| 0|29.84| 0.00| 47| 38| 69|28| 0| 0| |06| 0|29.75| 0.00| 33| 31| 94|25| 5| 12| 11|29.57| 0.00| 43| 35| 73|17| 6| 13| 0|29.86| 0.00| 44| 30| 58|35| 1| 4| |09| 72|29.84| 0.00| 32| 27| 80|26| 9| 15| 418|29.58| 0.00| 53| 40| 61|18| 5| 11| 146|29.90| 0.00| 46| 29| 51|35| 0| 2| |12| 877|29.86| 0.00| 42| 33| 70|28| 4| 13| 555|29.60| 0.00| 56| 43| 63|25| 3| 10| 90|29.91| 0.00| 46| 32| 58|33| 0| 1| |15| 807|29.82| 0.00| 47| 29| 49|26| 5| 11| 882|29.64| 0.00| 59| 40| 49|25| 13| 19| 113|29.89| 0.00| 43| 39| 86|05| 1| 5| |18| 144|29.77| 0.00| 47| 29| 48|26| 5| 12| 54|29.69| 0.00| 60| 41| 50|29| 4| 11| 60|29.85| 0.00| 45| 38| 78|03| 0| 0| |21| 0|29.75| 0.00| 43| 32| 66|17| 2| 7| 0|29.76| 0.00| 50| 39| 65|28| 3| 8| 0|29.83| 0.00| 45| 39| 82|02| 3| 5| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 4 | MAY 5 | MAY 6 | | | | | |00| 0|29.79| 0.00| 44| 40| 86|04| 0| 0| 0|29.67| 0.00| 51| 49| 91|14| 3| 9| 0|29.74| 0.00| 45| 44| 96|24| 5| 10| |03| 0|29.75| 0.00| 43| 40| 88|04| 0| 0| 0|29.63| 0.00| 51| 49| 93|16| 3| 7| 0|29.76| 0.00| 43| 41| 93|26| 6| 15| |06| 7|29.74| 0.00| 44| 41| 90|04| 0| 3| 0|29.65| 0.05| 51| 49| 95|19| 0| 1| 7|29.81| 0.00| 42| 38| 86|28| 4| 13| |09| 72|29.76| 0.00| 49| 42| 77|03| 0| 2| 137|29.63| 0.00| 53| 52| 96|14| 2| 8| 97|29.87| 0.00| 42| 34| 73|29| 9| 18| |12| 318|29.76| 0.00| 54| 49| 83|12| 0| 10| 105|29.62| 0.00| 55| 52| 91|18| 2| 7| 902|29.89| 0.00| 50| 37| 60|31| 5| 17| |15| 156|29.74| 0.00| 56| 47| 73|13| 3| 9| 76|29.64| 0.07| 53| 51| 94|30| 2| 10| 930|29.89| 0.00| 55| 34| 46|29| 6| 15| |18| 30|29.71| 0.00| 54| 47| 78|16| 0| 6| 62|29.66| 0.00| 50| 49| 96|24| 1| 11| 74|29.89| 0.00| 53| 30| 41|30| 3| 11| |21| 0|29.70| 0.00| 52| 48| 84|15| 0| 0| 0|29.72| 0.04| 47| 46| 96|28| 2| 11| 0|29.93| 0.00| 46| 30| 53|25| 0| 3| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 7 | MAY 8 | MAY 9 | | | | | |00| 0|29.93| 0.00| 40| 29| 64|25| 0| 0| 0|29.83| 0.00| 49| 36| 61|14| 0| 3| 0|29.86| 0.00| 43| 39| 87|27| 0| 0| |03| 0|29.94| 0.00| 35| 29| 81|23| 0| 4| 0|29.81| 0.00| 50| 38| 64|09| 0| 3| 0|29.88| 0.00| 40| 39| 94|27| 0| 0| |06| 12|29.95| 0.00| 32| 30| 93|23| 0| 0| 14|29.79| 0.00| 46| 39| 75|04| 0| 0| 14|29.91| 0.00| 40| 37| 91|28| 0| 2| |09| 515|29.95| 0.00| 51| 36| 58|01| 3| 4| 186|29.83| 0.00| 52| 37| 55|18| 1| 7| 186|29.92| 0.00| 47| 40| 75|21| 3| 9| |12|1144|29.93| 0.00| 56| 32| 40|14| 1| 7| 237|29.82| 0.00| 53| 37| 56|25| 6| 10|1076|29.90| 0.00| 56| 43| 61|27| 3| 9| |15| 791|29.87| 0.00| 60| 31| 33|27| 2| 10| 350|29.80| 0.00| 55| 39| 54|28| 1| 10| 812|29.85| 0.00| 60| 38| 43|28| 4| 13| |18| 264|29.84| 0.00| 60| 30| 32|03| 2| 10| 192|29.79| 0.00| 56| 35| 45|26| 0| 13| 160|29.83| 0.00| 57| 36| 45|31| 0| 3| |21| 0|29.84| 0.00| 52| 33| 49|03| 0| 0| 0|29.84| 0.00| 50| 35| 57|30| 0| 1| 0|29.83| 0.00| 48| 38| 70|32| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 10 | MAY 11 | MAY 12 | | | | | |00| 0|29.84| 0.00| 48| 39| 71|17| 1| 7| 0|29.88| 0.00| 44| 41| 88|20| 0| 0| 0|29.93| 0.05| 40| 39| 93|24| 4| 8| |03| 0|29.78| 0.00| 45| 39| 80|16| 0| 0| 0|29.85| 0.00| 40| 36| 85|19| 2| 5| 0|29.94| 0.00| 39| 38| 95|21| 1| 6| |06| 11|29.79| 0.00| 45| 40| 84|16| 0| 0| 26|29.87| 0.00| 42| 37| 85|20| 1| 6| 12|29.99| 0.00| 41| 40| 96|23| 0| 0| |09| 548|29.84| 0.00| 51| 41| 69|00| 1| 5| 292|29.88| 0.00| 47| 40| 76|23| 5| 14| 193|30.06| 0.00| 46| 43| 90|24| 1| 8| |12| 606|29.83| 0.00| 57| 41| 55|30| 3| 11| 431|29.88| 0.00| 52| 35| 51|22| 7| 16| 313|30.08| 0.00| 55| 41| 60|28| 6| 13| |15| 577|29.83| 0.00| 59| 38| 46|28| 2| 10| 325|29.86| 0.00| 53| 32| 45|27| 2| 12| 179|30.08| 0.00| 57| 37| 46|29| 3| 15| |18| 142|29.82| 0.00| 57| 39| 51|25| 4| 10| 54|29.89| 0.00| 43| 38| 83|22| 4| 11| 148|30.09| 0.00| 58| 36| 43|34| 1| 8| |21| 0|29.87| 0.00| 52| 42| 68|24| 2| 9| 0|29.93| 0.00| 42| 39| 89|21| 3| 12| 0|30.12| 0.00| 50| 39| 67|26| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 13 | MAY 14 | MAY 15 | | | | | |00| 0|30.12| 0.00| 45| 36| 69|18| 1| 4| 0|30.12| 0.00| 53| 40| 63|33| 0| 8| | | | | | | | | | |03| 0|30.13| 0.00| 44| 36| 72|17| 0| 4| | | | | | | | | | | | | | | | | | | |06| 16|30.15| 0.00| 36| 33| 87|17| 0| 0| | | | | | | | | | | | | | | | | | | |09| 534|30.18| 0.00| 56| 33| 43|27| 1| 4| | | | | | | | | | | | | | | | | | | |12| 898|30.17| 0.00| 63| 34| 33|29| 4| 11| | | | | | | | | | | | | | | | | | | |15| 810|30.13| 0.00| 66| 38| 35|27| 7| 20| | | | | | | | | | | | | | | | | | | |18| 125|30.09| 0.00| 67| 34| 29|29| 3| 10| | | | | | | | | | | | | | | | | | | |21| 0|30.10| 0.00| 53| 36| 52|23| 0| 0| | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 16 | MAY 17 | MAY 18 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.05 | 0.06 | 0.08 | 0.08 | 0.09 | 0.10 | 0.12 | 0.14 | 0.17 | 0.21 | 0.25 | 0.29 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 11 | 05 | 05 | 05 | 05 | 05 | 05 | 05 | 05 | 05 | 05 | 05 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1740 | 0121 | 0125 | 0125 | 0416 | 0419 | 0440 | 0500 | 1533 | 1552 | 1624 | 1651 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 2021: 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| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 22 | MAY 23 | MAY 24 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | MAY 25 | MAY 26 | MAY 27 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | 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|29.843| 45| 38| 79| 1.4| 21 | 1.1| |03| 0|29.812| 43| 38| 84| 1.4| 26 | 1.0| |06| 10|29.833| 41| 37| 85| 1.3| 23 | 0.9| |09| 261|29.866| 48| 38| 70| 3.2| 25 | 1.9| |12| 581|29.866| 53| 39| 60| 3.5| 27 | 2.8| |15| 524|29.849| 56| 38| 54| 3.9| 27 | 3.3| |18| 116|29.840| 54| 37| 55| 2.1| 28 | 1.6| |21| 0|29.863| 48| 38| 69| 1.2| 26 | 0.6| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
May 2021: 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|0.04|0.01|0.02| | | |0.01| |0.04|0.02|0.01| | | | | | | | | | | | |01 02| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | |0.01|0.03| | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | |0.03| |04 05|0.01|0.08| |0.04|0.09|0.05|0.03|0.01| | | | | |0.01|0.11|0.10|0.08|0.06|0.05|0.05|0.07|0.02|0.01|0.03|05 | | | | | | | | | | | | | | | | | | | | | | | | | 06|0.01|0.01| | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | |0.07| |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | |0.06|0.01|0.05|0.01| |0.01|0.05|11 12|0.06|0.04|0.01|0.01| | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | | | | | | | | | | | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.10|0.17|0.02|0.07|0.09|0.05|0.03|0.02|0.00|0.04|0.02|0.01|0.01|0.04|0.11|0.10|0.08|0.12|0.06|0.10|0.08|0.02|0.12|0.08|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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