47.8°F
Current conditions from King Hill
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  Monday April 24, 2017

Westford: April 2017
LOCAL CLIMATOLOGICAL DATA Monthly Summary
April 2017
Station: Westford Latitude: 44° 37' 39" 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 | m^2 | | | | | | | | | | |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| 37.1 | 30.3 | 33.7 | 32.8 | 31| 94| 31| 0|.........| 8| 0.50| 1.9| 30.01| 29.87|29.934| 0.4| 0.1|228| 12| SW| 6|197| 25 | |02| 47.6 | 31.2 | 39.4 | 37.9 | 31| 78| 25| 0|.........| 4| 0.00| 0.0| 30.05| 29.98|30.019| 1.4| 1.0|264| 16|WNW| 11|285| 211 | |03| 51.2 | 26.2 | 38.7 | 39.0 | 24| 59| 26| 0|.........| 3| 0.00| 0.0| 30.10| 29.85|30.010| 0.1| 0.1|321| 7| NW| 5|301| 238 | |04| 46.3 | 36.4 | 41.3 | 40.6 | 34| 77| 24| 0|.........| 2| 0.29| 0.0| 29.85| 29.54|29.632| 4.5| 4.4|182| 29| S| 14|186| 51 | |05| 45.4 | 35.1 | 40.3 | 38.8 | 36| 90| 25| 0|.........| 1| 0.06| 0.0| 30.01| 29.63|29.836| 1.6| 1.2|210| 15| S| 9|192| 64 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 40.5 | 36.4 | 38.5 | 38.1 | 36| 92| 26| 0|.........| T| 0.71| 0.0| 29.98| 29.13|29.617| 1.1| 1.0|167| 15| S| 8|140| 32 | |07| 40.0 | 31.5 | 35.8 | 36.8 | 36| 96| 29| 0|.........| T| 0.54| 0.0| 29.43| 29.07|29.199| 3.8| 2.9|264| 25|WNW| 13|308| 54 | |08| 38.6 | 28.5 | 33.5*| 32.2 | 29| 87| 31| 0|.........| 1| 0.20| 0.0| 29.89| 29.43|29.673| 4.6| 4.6|307| 24|WNW| 15|285| 59 | |09| 61.6 | 26.0*| 43.8 | 44.9 | 29| 58| 21| 0|.........| 0| 0.02| 0.0| 30.06| 29.89|29.989| 1.4| 1.4|208| 16|SSW| 7|229| 226 | |10| 76.2*| 51.3 | 63.8*| 63.9 | 36| 35| 1| 0|.........| 0| 0.00| 0.0| 30.00| 29.81|29.931| 5.4| 5.4|205| 28| S| 15|207| 197 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 76.1 | 47.0 | 61.5 | 60.3 | 49| 68| 3| 0|.........| 0| 0.14| 0.0| 30.08| 29.92|29.983| 1.3| 0.9|253| 15|SSW| 11|230| 155 | |12| 54.4 | 41.9 | 48.2 | 48.2 | 43| 82| 17| 0|.........| 0| 0.06| 0.0| 30.20| 29.99|30.079| 3.6| 3.2|276| 25|WSW| 14|278| 87 | |13| 55.3 | 36.0 | 45.7 | 43.7 | 32| 65| 19| 0|.........| 0| 0.01| 0.0| 30.33| 30.18|30.267| 2.5| 2.3|307| 21| NW| 12|324| 209 | |14| 58.7 | 31.8 | 45.3 | 45.2 | 24| 48| 19| 0|.........| 0| 0.00| 0.0| 30.41| 30.30|30.350| 0.4| 0.4|311| 12|WNW| 7|291| 255 | |15| 66.0 | 35.1 | 50.5 | 50.8 | 34| 56| 14| 0|.........| 0| 0.38| 0.0| 30.33| 29.81|30.098| 4.1| 4.1|205| 23| S| 13|202| 187 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 75.7 | 49.7 | 62.7 | 59.6 | 53| 81| 2| 0|.........| 0| 0.35| 0.0| 29.81| 29.49|29.672| 4.8| 4.2|224| 27|NNW| 14|296| 97 | |17| 49.8 | 36.4 | 43.1 | 44.7 | 38| 79| 22| 0|.........| 0| 0.00| 0.0| 30.19| 29.67|29.915| 1.8| 1.7|312| 21|WNW| 10|304| 100 | |18| 50.6 | 31.0 | 40.8 | 40.7 | 28| 63| 24| 0|.........| 0| 0.00| 0.0| 30.44| 30.19|30.357| 0.6| 0.5|345| 16| NE| 7|301| 234 | |19| 51.2 | 38.8 | 45.0 | 43.3 | 37| 78| 20| 0|.........| 0| 0.51| 0.0| 30.39| 30.03|30.198| 6.6| 6.6|198| 32| SW| 15|205| 67 | |20| 45.7 | 39.5 | 42.6 | 42.7 | 40| 91| 22| 0|.........| 0| 0.07| 0.0| 30.17| 30.00|30.101| 1.6| 0.7|241| 15| SW| 10|214| 65 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 50.5 | 41.7 | 46.1 | 45.7 | 42| 87| 18| 0|.........| 0| 0.40| 0.0| 30.01| 29.83|29.886| 4.4| 4.3|183| 29| S| 15|201| 92 | |22| 46.5 | 39.5 | 43.0 | 43.4 | 41| 90| 21| 0|.........| 0| 0.01| 0.0| 30.00| 29.86|29.909| 1.8| 1.0|260| 16|NNW| 9|339| 58 | |23| 64.6 | 31.7 | 48.2 | 49.3 | 35| 63| 16| 0|.........| 0| 0.00| 0.0| 30.06| 29.91|29.997| 1.8| 1.5|236| 16| NW| 10|222| 268 | |24| | | | | | | | | | | | | | | | | | | | | | | | |25| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |26| | | | | | | | | | | | | | | | | | | | | | | | |27| | | | | | | | | | | | | | | | | | | | | | | | |28| | | | | | | | | | | | | | | | | | | | | | | | |29| | | | | | | | | | | | | | | | | | | | | | | | |30| | | | | | | | | | | | | | | | | | | | | | | | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |1229.6| 833.0|------|------|---|----| 456| 0| Days | 4.25| 1.9| 30.44| 29.07|29.945| 2.5| 1.7|231| 32| SW| 15|201| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 53.5| 36.2| 44.8 | 44.7 | 36|74.0|----|----|≥.01 Inch 16|12.58|108.4| 18 | 7 |------|----|----|---| 19 | 21 | 126| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | Season |Snow, Ice | | | | Number of Days | to Date |≥1.0 Inch 1| Greatest in 24 Hours and Dates | Greatest Depth on Ground | +------------------+-----------------+----+----+------------+--------------+-----------------+ of Snow, Ice Pellets or Ice | | Max Temperature | Min Temperature |6723| 0|Thunder 0|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 0| 0.93| 6- 7| 1.9 | 1 | 8 | 1 | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 9 | 0 |----|----| Clear 2 Partly Cloudy 8 Cloudy 13 | +--------+---------+--------+--------+----+----+------------------------------------------+ NOTES: Data in column 4A are (MAX+MIN) / 2, whereas data in columns 4B, 5, 6, 15, 16, 23 are means via continuous observations Units: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches. for 24 hours. 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/m^2 and is continuously averaged for 24 hours. Data in columns 4B, 5, 6, 15, 16, 23 are updated continuously, there by achieving a "true" mean.
OBSERVATIONS AT 3-HOUR INTERVALS
April 2017: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 1 | APR 2 | APR 3 | | | | | |00| 0|29.89| 0.00| 31| 30| 93|21| 2| 7| 0|30.01| 0.00| 31| 31| 97|32| 2| 5| 0|30.03| 0.00| 36| 27| 72|32| 0| 0| |03| 0|29.87| 0.00| 30| 29| 95|20| 0| 0| 0|30.02| 0.00| 31| 31| 97|34| 0| 6| 0|30.04| 0.00| 34| 26| 75|26| 0| 0| |06| 0|29.89| 0.00| 31| 29| 96|20| 0| 0| 0|30.03| 0.00| 32| 31| 97|02| 0| 0| 0|30.04| 0.00| 28| 25| 87|27| 0| 0| |09| 5|29.93| 0.00| 32| 31| 96|20| 0| 0| 200|30.04| 0.00| 36| 34| 94|21| 3| 9| 353|30.08| 0.00| 38| 27| 65|27| 0| 0| |12| 40|29.94| 0.00| 34| 33| 94|20| 0| 4| 577|30.01| 0.00| 42| 33| 70|23| 2| 10| 765|30.09| 0.00| 44| 25| 48|30| 0| 6| |15| 130|29.93| 0.00| 37| 33| 87|07| 0| 0| 680|29.98| 0.00| 47| 32| 56|31| 3| 15| 696|30.01| 0.00| 49| 20| 32|27| 0| 0| |18| 49|29.97| 0.00| 35| 34| 93|32| 0| 0| 190|30.02| 0.00| 46| 31| 56|32| 0| 8| 127|29.95| 0.00| 49| 20| 32|03| 0| 0| |21| 0|30.00| 0.00| 32| 31| 96|32| 0| 5| 0|30.03| 0.00| 37| 28| 68|32| 0| 0| 0|29.92| 0.00| 40| 22| 48|03| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 4 | APR 5 | APR 6 | | | | | |00| 0|29.85| 0.00| 40| 26| 57|03| 0| 0| 0|29.64| 0.00| 37| 34| 92|19| 3| 11| 0|29.97| 0.00| 37| 35| 92|06| 0| 0| |03| 0|29.74| 0.00| 44| 30| 58|16| 0| 1| 0|29.65| 0.00| 37| 34| 90|20| 3| 8| 0|29.91| 0.00| 37| 35| 93|06| 0| 0| |06| 0|29.69| 0.08| 40| 37| 89|12| 0| 6| 0|29.71| 0.00| 36| 35| 95|20| 0| 0| 0|29.84| 0.00| 39| 36| 90|10| 2| 5| |09| 120|29.61| 0.00| 41| 37| 87|17| 7| 20| 70|29.82| 0.00| 38| 37| 96|22| 0| 0| 134|29.77| 0.00| 40| 36| 83|18| 4| 13| |12| 172|29.57| 0.00| 42| 35| 75|18| 10| 24| 123|29.87| 0.00| 40| 39| 95|19| 3| 6| 70|29.65| 0.00| 39| 37| 90|19| 4| 8| |15| 148|29.55| 0.00| 40| 35| 82|17| 8| 24| 199|29.91| 0.00| 45| 39| 81|29| 5| 8| 47|29.55| 0.00| 38| 35| 92|20| 4| 10| |18| 56|29.56| 0.00| 39| 34| 81|17| 5| 12| 46|29.95| 0.00| 42| 37| 83|33| 0| 0| 30|29.44| 0.06| 38| 36| 95|18| 0| 0| |21| 0|29.62| 0.00| 37| 34| 89|18| 6| 19| 0|29.99| 0.00| 38| 35| 90|03| 0| 2| 0|29.25| 0.11| 37| 36| 96|28| 2| 5| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 7 | APR 8 | APR 9 | | | | | |00| 0|29.13| 0.00| 37| 36| 97|03| 0| 0| 0|29.43| 0.00| 32| 30| 96|31| 6| 20| 0|29.89| 0.00| 29| 26| 91|03| 0| 0| |03| 0|29.08| 0.00| 37| 36| 97|03| 0| 0| 0|29.49| 0.00| 29| 28| 96|31| 9| 16| 0|29.92| 0.00| 27| 24| 90|09| 0| 0| |06| 0|29.09| 0.00| 40| 39| 97|19| 4| 11| 0|29.57| 0.00| 29| 27| 94|29| 7| 18| 0|29.97| 0.00| 28| 24| 85|09| 0| 0| |09| 167|29.13| 0.00| 40| 39| 95|21| 4| 13| 69|29.64| 0.00| 29| 27| 91|30| 7| 20| 401|30.04| 0.00| 42| 29| 60|19| 3| 7| |12| 74|29.17| 0.00| 39| 37| 94|22| 4| 13| 163|29.70| 0.00| 33| 28| 85|31| 7| 16| 735|30.06| 0.00| 51| 29| 44|18| 3| 11| |15| 149|29.21| 0.04| 38| 37| 94|26| 3| 9| 158|29.72| 0.06| 35| 29| 79|31| 1| 11| 638|30.02| 0.00| 60| 32| 35|24| 3| 10| |18| 26|29.28| 0.06| 35| 34| 95|28| 5| 13| 93|29.76| 0.00| 38| 31| 74|33| 0| 6| 188|29.97| 0.00| 60| 31| 33|19| 5| 14| |21| 0|29.37| 0.00| 32| 31| 96|29| 5| 20| 0|29.85| 0.00| 34| 30| 85|05| 0| 0| 0|29.99| 0.00| 51| 33| 51|19| 1| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 10 | APR 11 | APR 12 | | | | | |00| 0|29.99| 0.00| 53| 32| 44|20| 3| 13| 0|29.93| 0.00| 67| 46| 47|19| 5| 10| 0|30.05| 0.00| 47| 46| 97|10| 0| 0| |03| 0|29.98| 0.00| 54| 32| 42|20| 6| 14| 0|29.93| 0.00| 60| 49| 67|25| 0| 0| 0|30.00| 0.00| 45| 44| 97|20| 0| 0| |06| 0|30.00| 0.00| 52| 30| 43|19| 6| 11| 0|29.97| 0.00| 58| 45| 61|25| 0| 0| 0|30.01| 0.00| 49| 48| 98|20| 0| 0| |09| 399|29.99| 0.00| 61| 33| 35|20| 12| 23| 371|29.98| 0.00| 65| 46| 49|20| 5| 10| 137|30.04| 0.00| 53| 52| 97|23| 5| 8| |12| 740|29.93| 0.00| 70| 36| 28|19| 10| 15| 712|29.95| 0.00| 74| 51| 45|25| 4| 15| 76|30.07| 0.00| 50| 43| 79|28| 4| 14| |15| 526|29.86| 0.00| 76| 38| 26|22| 9| 15| 232|29.95| 0.00| 64| 52| 66|30| 3| 10| 269|30.08| 0.00| 51| 42| 71|30| 8| 14| |18| 230|29.86| 0.00| 75| 38| 26|21| 7| 15| 33|30.02| 0.00| 54| 49| 84|03| 3| 8| 44|30.10| 0.00| 51| 38| 60|29| 11| 21| |21| 0|29.90| 0.00| 69| 41| 36|24| 1| 5| 0|30.05| 0.00| 50| 49| 95|10| 0| 0| 0|30.19| 0.00| 43| 35| 72|24| 1| 15| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 13 | APR 14 | APR 15 | | | | | |00| 0|30.19| 0.00| 42| 35| 75|25| 0| 1| 0|30.33| 0.00| 40| 27| 59|29| 0| 0| 0|30.32| 0.00| 40| 23| 50|34| 0| 0| |03| 0|30.19| 0.00| 38| 34| 86|27| 6| 10| 0|30.33| 0.00| 35| 27| 73|01| 0| 0| 0|30.28| 0.00| 36| 24| 60|19| 0| 4| |06| 0|30.23| 0.00| 36| 33| 86|26| 0| 7| 0|30.37| 0.00| 34| 27| 76|01| 0| 0| 0|30.25| 0.00| 36| 23| 58|19| 0| 6| |09| 72|30.28| 0.00| 37| 33| 84|29| 6| 10| 424|30.40| 0.00| 46| 27| 48|34| 0| 0| 411|30.22| 0.00| 52| 26| 37|21| 4| 14| |12| 812|30.30| 0.00| 47| 33| 58|33| 6| 15| 758|30.40| 0.00| 52| 25| 34|14| 2| 6| 735|30.11| 0.00| 63| 30| 28|19| 5| 13| |15| 664|30.27| 0.00| 54| 32| 44|02| 4| 20| 675|30.34| 0.00| 56| 17| 21|31| 2| 10| 411|30.00| 0.00| 64| 38| 38|20| 5| 15| |18| 216|30.28| 0.00| 54| 29| 39|33| 3| 13| 218|30.31| 0.00| 58| 23| 26|33| 0| 5| 47|29.95| 0.00| 62| 44| 51|22| 3| 16| |21| 0|30.32| 0.00| 43| 27| 53|32| 0| 0| 0|30.33| 0.00| 43| 23| 45|34| 0| 0| 0|29.89| 0.24| 51| 49| 94|20| 2| 16| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 16 | APR 17 | APR 18 | | | | | |00| 0|29.81| 0.00| 51| 49| 90|20| 12| 20| 0|29.68| 0.00| 50| 48| 94|31| 0| 0| 0|30.19| 0.00| 36| 30| 78|32| 0| 0| |03| 0|29.72| 0.00| 52| 49| 91|20| 6| 12| 0|29.69| 0.00| 48| 47| 96|30| 0| 0| 0|30.23| 0.00| 35| 29| 80|31| 0| 0| |06| 0|29.72| 0.00| 54| 50| 87|20| 5| 9| 0|29.76| 0.00| 47| 45| 92|24| 3| 8| 0|30.31| 0.00| 34| 28| 79|02| 0| 0| |09| 123|29.72| 0.00| 59| 53| 82|21| 6| 13| 53|29.85| 0.00| 45| 39| 80|31| 2| 21| 148|30.38| 0.00| 37| 28| 68|34| 1| 5| |12| 881|29.67| 0.00| 69| 57| 65|26| 6| 14| 309|29.92| 0.00| 46| 38| 72|28| 2| 11| 932|30.43| 0.00| 44| 26| 49|35| 3| 6| |15| 770|29.58| 0.00| 75| 57| 53|33| 1| 7| 190|29.96| 0.00| 47| 36| 65|32| 4| 16| 682|30.42| 0.00| 48| 26| 42|33| 1| 4| |18| 162|29.58| 0.04| 62| 60| 93|23| 4| 9| 37|30.04| 0.00| 43| 32| 66|32| 5| 12| 199|30.39| 0.00| 50| 29| 44|31| 0| 5| |21| 0|29.66| 0.00| 55| 52| 89|31| 8| 16| 0|30.14| 0.00| 39| 31| 72|32| 2| 10| 0|30.40| 0.00| 39| 30| 71|03| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.06 | 0.08 | 0.10 | 0.12 | 0.14 | 0.20 | 0.22 | 0.24 | 0.24 | 0.27 | 0.34 | 0.38 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 06 | 06 | 16 | 16 | 06 | 06 | 16 | 16 | 16 | 19 | 19 | 19 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1346 | 1216 | 1737 | 1743 | 1716 | 1724 | 1737 | 1743 | 1743 | 1741 | 1733 | 1751 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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
April 2017: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 19 | APR 20 | APR 21 | | | | | |00| 0|30.37| 0.00| 39| 27| 62|18| 0| 0| 0|30.06| 0.00| 43| 41| 94|21| 5| 16| 0|30.00| 0.00| 42| 40| 93|07| 0| 0| |03| 0|30.36| 0.00| 40| 31| 71|17| 4| 12| 0|30.06| 0.00| 43| 42| 96|22| 4| 10| 0|29.96| 0.16| 45| 43| 93|14| 0| 9| |06| 0|30.34| 0.00| 40| 33| 74|18| 8| 18| 0|30.10| 0.00| 43| 42| 96|31| 3| 9| 0|29.91| 0.00| 44| 42| 91|20| 1| 7| |09| 176|30.27| 0.00| 44| 35| 70|19| 8| 22| 88|30.15| 0.00| 40| 40| 97|33| 0| 8| 95|29.90| 0.00| 46| 41| 82|18| 9| 25| |12| 146|30.20| 0.00| 47| 35| 65|20| 9| 19| 225|30.16| 0.00| 44| 41| 87|33| 1| 8| 288|29.84| 0.00| 49| 42| 76|19| 7| 22| |15| 54|30.13| 0.00| 45| 41| 86|19| 2| 10| 202|30.13| 0.00| 45| 39| 81|33| 3| 7| 250|29.83| 0.13| 46| 44| 93|18| 5| 12| |18| 14|30.05| 0.07| 43| 42| 94|21| 9| 23| 32|30.12| 0.00| 43| 40| 87|36| 0| 0| 151|29.83| 0.00| 47| 43| 83|18| 6| 18| |21| 0|30.04| 0.00| 44| 41| 89|20| 7| 27| 0|30.06| 0.00| 42| 39| 90|07| 0| 5| 0|29.88| 0.00| 44| 42| 92|18| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 22 | APR 23 | APR 24 | | | | | |00| 0|29.87| 0.00| 43| 42| 95|19| 3| 9| 0|29.99| 0.00| 40| 38| 93|31| 0| 0| 0|30.02| 0.00| 50| 35| 57|34| 0| 7| |03| 0|29.87| 0.00| 43| 42| 96|19| 3| 6| 0|30.01| 0.00| 38| 35| 91|02| 0| 0| | | | | | | | | | |06| 0|29.87| 0.00| 43| 42| 96|20| 4| 6| 5|30.02| 0.00| 33| 32| 96|02| 0| 0| | | | | | | | | | |09| 130|29.87| 0.00| 45| 44| 95|20| 2| 6| 459|30.06| 0.00| 46| 40| 80|16| 0| 6| | | | | | | | | | |12| 183|29.89| 0.00| 46| 40| 82|29| 5| 9| 784|30.05| 0.00| 54| 39| 56|28| 6| 9| | | | | | | | | | |15| 128|29.90| 0.00| 46| 41| 84|32| 1| 5| 694|29.97| 0.00| 62| 37| 39|18| 1| 10| | | | | | | | | | |18| 62|29.95| 0.00| 43| 39| 84|32| 1| 14| 199|29.91| 0.00| 64| 38| 37|21| 7| 14| | | | | | | | | | |21| 0|29.98| 0.00| 40| 38| 90|31| 0| 0| 0|29.96| 0.00| 55| 36| 49|24| 3| 10| | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 25 | APR 26 | APR 27 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 28 | APR 29 | APR 30 | | | | | |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 0.01" 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|29.943| 41| 35| 80| 1.6| 22 | 1.2| |03| 0|29.928| 40| 35| 84| 1.8| 23 | 1.2| |06| 0|29.943| 39| 35| 85| 1.9| 22 | 1.2| |09| 200|29.963| 44| 36| 77| 3.8| 21 | 2.9| |12| 448|29.956| 49| 36| 66| 4.5| 23 | 2.8| |15| 374|29.927| 51| 36| 63| 3.3| 26 | 1.7| |18| 106|29.926| 49| 36| 66| 3.3| 24 | 2.0| |21| 0|29.948| 43| 35| 76| 1.6| 25 | 1.0| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
April 2017: 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| | | | | | | | | | | | | | | | | | | | | | | | |01 02| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | |0.09|0.05|0.02|0.01| | | | | |0.01|0.02| | |0.01|0.01|0.02|0.01|0.02|0.02|04 05| | | |0.01| | |0.02|0.02| |0.01| | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | |0.06|0.11|0.10|0.02| |0.08|0.14| | |0.08|0.12| | |06 07|0.02|0.06| | | |0.01|0.03|0.03|0.02|0.03|0.02|0.01|0.07|0.05|0.03|0.06|0.04|0.04|0.02| | | | | |07 08|0.01| | | | | | | | | |0.01| |0.02|0.04|0.04|0.03|0.02|0.01|0.02| | | | | |08 09| | | | | | | | |0.01|0.01| | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | |0.10|0.04| | | |11 12| | | | | |0.01|0.05| | | | | | | | | | | | | | | | | |12 13| |0.01| | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | |0.05|0.12|0.10|0.09|0.02| |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16|0.01|0.08| | | | | | | | | | | | | | |0.08|0.16| | | | | |0.02|16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | |0.02|0.02|0.12|0.13|0.13|0.07|0.01| | | |0.01|19 20|0.01|0.02| | |0.01|0.02|0.01| | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| |0.02|0.10|0.05|0.03| | | | | | | | |0.05|0.05| | | | | |0.04|0.05|0.01| |21 22| | | | | | | | | | | | | | | | | | | | | | |0.01| |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.05|0.19|0.10|0.06|0.04|0.13|0.16|0.07|0.04|0.05|0.03|0.07|0.20|0.26|0.17|0.23|0.35|0.48|0.17|0.24|0.28|0.27|0.06|0.05|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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