54.1
Current conditions from King Hill
Updated every 5 minutes
 
  Thursday September 20, 2018

Westford: September 2018
LOCAL CLIMATOLOGICAL DATA Monthly Summary
September 2018
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| 76.4 | 61.5 | 68.9 | 68.1 | 61| 79| 0| 4|.........| 0| 0.00| 0.0| 30.24| 30.12|30.191| 1.6| 1.6|217| 24| SW| 10|230| 212 | |02| 79.5 | 62.5 | 71.0 | 70.9 | 66| 85| 0| 7|.........| 0| 0.00| 0.0| 30.15| 30.04|30.097| 1.3| 1.3|215| 16| S| 7|216| 158 | |03| 88.8 | 67.3 | 78.1*| 76.4 | 71| 83| 0| 13|.........| 0| 0.30| 0.0| 30.12| 29.99|30.072| 0.9| 0.9|228| 21| W| 8|212| 191 | |04| 78.9 | 56.7 | 67.8 | 68.7 | 62| 82| 0| 3|.........| 0| 0.00| 0.0| 30.23| 30.11|30.180| 0.1| 0.1|300| 11| NW| 4|302| 211 | |05| 89.0*| 57.3 | 73.2 | 74.1 | 66| 78| 0| 8|.........| 0| 0.00| 0.0| 30.18| 29.98|30.085| 0.9| 0.9|216| 16|SSW| 8|214| 202 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 76.8 | 50.8 | 63.8 | 68.8 | 64| 84| 1| 0|.........| 0| 0.04| 0.0| 30.17| 29.95|30.045| 0.5| 0.3|232| 14| SW| 6|302| 112 | |07| 74.0 | 47.8 | 60.9 | 58.4 | 52| 81| 4| 0|.........| 0| 0.00| 0.0| 30.20| 30.08|30.146| 0.1| 0.1|274| 13| W| 6|261| 182 | |08| 63.6 | 39.3 | 51.4 | 52.2 | 43| 74| 13| 0|.........| 0| 0.00| 0.0| 30.27| 30.11|30.191| 0.4| 0.4| 14| 14| N| 6| 19| 221 | |09| 62.3 | 34.9*| 48.6*| 47.9 | 41| 80| 16| 0|.........| 0| 0.00| 0.0| 30.33| 30.26|30.287| 0.0| 0.0| 34| 8|NNE| 3| 24| 174 | |10| 60.3 | 41.0 | 50.7 | 51.0 | 46| 85| 14| 0|.........| 0| 0.10| 0.0| 30.32| 30.13|30.258| 0.3| 0.3|180| 15|SSW| 7|203| 73 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 72.1 | 54.9 | 63.5 | 62.2 | 59| 90| 1| 0|.........| 0| 0.54| 0.0| 30.17| 30.07|30.108| 0.2| 0.2|220| 13|WSW| 4|217| 127 | |12| 74.1 | 59.8 | 66.9 | 65.6 | 62| 88| 0| 2|.........| 0| T | 0.0| 30.25| 30.17|30.221| 0.0| 0.0|318| 6| NW| 1|316| 99 | |13| 79.8 | 53.5 | 66.7 | 63.5 | 59| 87| 0| 2|.........| 0| 0.00| 0.0| 30.29| 30.21|30.237| 0.1| 0.1|296| 10|WNW| 6|294| 125 | |14| 83.2 | 53.4 | 68.3 | 65.7 | 59| 81| 0| 3|.........| 0| 0.01| 0.0| 30.24| 30.11|30.182| 0.0| 0.0|249| 11| W| 4|277| 200 | |15| 84.8 | 57.7 | 71.3 | 69.2 | 64| 85| 0| 7|.........| 0| 0.00| 0.0| 30.16| 30.09|30.126| 0.1| 0.1|218| 11|SSW| 4|218| 162 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 85.0 | 62.1 | 73.6 | 71.0 | 66| 85| 0| 9|.........| 0| 0.01| 0.0| 30.18| 30.09|30.129| 0.0| 0.0|296| 7| NW| 2|296| 168 | |17| 83.1 | 64.5 | 73.8 | 71.9 | 65| 81| 0| 9|.........| 0| 0.00| 0.0| 30.09| 29.82|29.943| 1.0| 1.0|218| 16|WSW| 7|211| 175 | |18| 79.6 | 54.0 | 66.8 | 68.3 | 64| 87| 0| 2|.........| 0| 0.00| 0.0| 29.83| 29.67|29.737| 0.2| 0.1|257| 11|SSW| 3|199| 106 | |19| 64.6 | 49.6 | 57.1 | 54.5 | 51| 87| 7| 0|.........| 0| 0.00| 0.0| 30.11| 29.79|29.969| 0.1| 0.0|345| 12| NW| 3|296| 111 | |20| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | |23| | | | | | | | | | | | | | | | | | | | | | | | |24| | | | | | | | | | | | | | | | | | | | | | | | |25| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |26| | | | | | | | | | | | | | | | | | | | | | | | |27| | | | | | | | | | | | | | | | | | | | | | | | |28| | | | | | | | | | | | | | | | | | | | | | | | |29| | | | | | | | | | | | | | | | | | | | | | | | |30| | | | | | | | | | | | | | | | | | | | | | | | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |1455.9|1028.6|------|------|---|----| 56| 69| Days | 1.00| 0.0| 30.33| 29.67|30.116| 0.4| 0.3|223| 24| SW| 10|230| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 76.6| 54.1| 65.4 | 64.0 | 59|83.8|----|----|≥.01 Inch 6|25.58| 0.0| 9 | 18 |------|----|----|---| 1 | 1 | 150| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | 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 | 71| 205|Thunder 0|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 0| 0.64| 10-11| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 0 | 0 |----|----| Clear 4 Partly Cloudy 9 Cloudy 5 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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/m² 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
September 2018: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 1 | SEP 2 | SEP 3 | | | | | |00| 0|30.23| 0.00| 62| 58| 86|18| 0| 0| 0|30.13| 0.00| 66| 62| 87|15| 0| 9| 0|30.08| 0.00| 72| 69| 89|22| 3| 10| |03| 0|30.22| 0.00| 64| 59| 85|21| 1| 6| 0|30.12| 0.00| 65| 62| 90|22| 0| 7| 0|30.08| 0.00| 71| 69| 91|22| 1| 7| |06| 0|30.23| 0.00| 63| 59| 87|21| 0| 0| 0|30.12| 0.00| 63| 61| 94|21| 1| 7| 0|30.09| 0.00| 70| 68| 93|21| 1| 9| |09| 343|30.23| 0.00| 68| 61| 79|22| 4| 14| 297|30.13| 0.00| 70| 66| 86|21| 1| 10| 357|30.11| 0.00| 76| 71| 85|21| 3| 12| |12| 687|30.21| 0.00| 73| 63| 71|21| 8| 18| 610|30.10| 0.00| 78| 69| 74|20| 0| 14| 661|30.08| 0.00| 84| 74| 72|20| 1| 13| |15| 594|30.20| 0.00| 75| 65| 70|21| 3| 18| 315|30.07| 0.00| 77| 69| 77|23| 3| 13| 471|30.01| 0.31| 83| 76| 78|24| 1| 12| |18| 153|30.13| 0.00| 74| 64| 71|21| 3| 10| 113|30.05| 0.00| 76| 69| 78|21| 0| 10| 23|30.00| 0.00| 83| 73| 70|26| 1| 12| |21| 0|30.14| 0.00| 66| 62| 86|21| 1| 7| 0|30.07| 0.00| 72| 68| 86|20| 0| 10| 0|30.10| 0.15| 71| 69| 93|29| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 4 | SEP 5 | SEP 6 | | | | | |00| 0|30.12| 0.00| 68| 66| 95|26| 0| 0| 0|30.18| 0.00| 57| 56| 95|02| 0| 0| 0|29.98| 0.00| 77| 70| 81|20| 1| 11| |03| 0|30.12| 0.00| 65| 64| 96|26| 0| 0| 0|30.15| 0.00| 58| 57| 96|02| 0| 0| 0|29.95| 0.00| 75| 70| 85|21| 1| 9| |06| 0|30.16| 0.00| 66| 65| 97|34| 0| 0| 0|30.15| 0.00| 63| 59| 88|19| 0| 0| 0|29.97| 0.00| 73| 70| 92|22| 0| 0| |09| 415|30.22| 0.00| 69| 67| 96|03| 0| 0| 366|30.15| 0.00| 72| 66| 81|21| 2| 9| 19|30.01| 0.05| 70| 68| 94|29| 2| 7| |12| 689|30.23| 0.00| 76| 64| 66|30| 1| 10| 652|30.12| 0.00| 82| 70| 67|25| 2| 10| 311|30.07| 0.00| 69| 64| 84|05| 1| 6| |15| 517|30.21| 0.00| 77| 59| 54|29| 0| 6| 561|30.05| 0.00| 88| 71| 58|21| 3| 10| 570|30.06| 0.00| 72| 62| 70|05| 0| 6| |18| 169|30.17| 0.00| 76| 61| 61|02| 0| 0| 137|29.99| 0.00| 87| 72| 63|21| 1| 11| 88|30.09| 0.00| 67| 59| 74|06| 0| 0| |21| 0|30.18| 0.00| 59| 56| 90|02| 0| 0| 0|29.99| 0.00| 78| 71| 79|22| 1| 8| 0|30.15| 0.00| 56| 53| 92|05| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 7 | SEP 8 | SEP 9 | | | | | |00| 0|30.17| 0.00| 51| 49| 95|05| 0| 0| 0|30.12| 0.00| 52| 50| 91|04| 0| 0| 0|30.27| 0.00| 40| 39| 94|03| 0| 0| |03| 0|30.17| 0.00| 49| 48| 96|05| 0| 0| 0|30.12| 0.00| 50| 48| 93|04| 0| 6| 0|30.27| 0.00| 37| 36| 95|03| 0| 0| |06| 0|30.18| 0.00| 48| 47| 96|05| 0| 0| 0|30.18| 0.00| 46| 43| 88|03| 0| 5| 0|30.28| 0.00| 35| 34| 95|03| 0| 0| |09| 352|30.19| 0.00| 58| 57| 97|05| 0| 0| 380|30.21| 0.00| 54| 42| 63|05| 0| 8| 367|30.32| 0.00| 48| 45| 91|11| 0| 3| |12| 301|30.16| 0.00| 67| 56| 68|28| 0| 7| 677|30.21| 0.00| 59| 42| 54|30| 0| 8| 717|30.31| 0.00| 58| 47| 65|30| 0| 5| |15| 311|30.11| 0.00| 70| 52| 52|30| 0| 12| 605|30.18| 0.00| 63| 45| 52|02| 1| 7| 462|30.28| 0.00| 61| 44| 53|05| 0| 6| |18| 141|30.08| 0.00| 69| 55| 61|04| 1| 8| 141|30.19| 0.00| 59| 45| 59|05| 0| 1| 84|30.26| 0.00| 60| 49| 67|03| 0| 0| |21| 0|30.12| 0.00| 53| 49| 87|04| 0| 0| 0|30.24| 0.00| 42| 39| 91|03| 0| 0| 0|30.30| 0.00| 45| 43| 91|03| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 10 | SEP 11 | SEP 12 | | | | | |00| 0|30.32| 0.00| 42| 41| 93|03| 0| 0| 0|30.13| 0.00| 56| 53| 90|21| 0| 10| 0|30.17| 0.00| 62| 60| 95|08| 0| 0| |03| 0|30.31| 0.00| 41| 40| 95|03| 0| 0| 0|30.10| 0.12| 55| 54| 95|23| 0| 0| 0|30.19| 0.00| 61| 60| 96|08| 0| 0| |06| 0|30.30| 0.00| 41| 40| 96|03| 0| 0| 0|30.08| 0.00| 55| 54| 96|22| 0| 0| 0|30.22| 0.00| 60| 59| 96|08| 0| 0| |09| 156|30.31| 0.00| 53| 45| 74|12| 0| 0| 146|30.09| 0.00| 59| 58| 96|18| 0| 8| 214|30.25| 0.00| 65| 62| 89|08| 0| 0| |12| 255|30.29| 0.00| 59| 47| 65|10| 0| 1| 383|30.09| 0.00| 67| 63| 85|24| 1| 7| 473|30.25| 0.00| 71| 64| 79|25| 0| 0| |15| 123|30.25| 0.00| 60| 49| 68|09| 0| 6| 686|30.09| 0.00| 70| 64| 80|20| 0| 0| 243|30.22| 0.00| 74| 65| 75|31| 0| 0| |18| 25|30.21| 0.00| 54| 51| 90|11| 0| 0| 123|30.10| 0.00| 71| 64| 80|03| 0| 0| 35|30.22| 0.00| 70| 65| 83|31| 0| 0| |21| 0|30.19| 0.00| 53| 51| 94|13| 0| 8| 0|30.16| 0.00| 63| 61| 92|08| 0| 0| 0|30.22| 0.00| 62| 60| 93|31| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 13 | SEP 14 | SEP 15 | | | | | |00| 0|30.24| 0.00| 60| 58| 95|31| 0| 0| 0|30.22| 0.00| 58| 57| 96|30| 0| 0| 0|30.14| 0.00| 58| 55| 91|16| 0| 0| |03| 0|30.24| 0.00| 57| 56| 96|31| 0| 0| 0|30.22| 0.00| 55| 55|100|30| 0| 0| 0|30.12| 0.00| 61| 58| 91|21| 0| 0| |06| 0|30.26| 0.00| 54| 53| 96|31| 0| 0| 0|30.22| 0.00| 54| 53| 97|30| 0| 0| 0|30.14| 0.00| 62| 60| 95|22| 0| 0| |09| | | | | | | | | | 338|30.24| 0.00| 64| 63| 97|30| 0| 0| 111|30.15| 0.00| 67| 64| 89|21| 1| 8| |12| | | | | | | | | | 647|30.20| 0.00| 77| 66| 69|22| 0| 7| 645|30.14| 0.00| 77| 69| 76|16| 0| 6| |15| 547|30.23| 0.00| 78| 67| 67|28| 2| 9| 550|30.15| 0.00| 82| 62| 52|03| 0| 0| 559|30.11| 0.00| 79| 69| 73|00| 0| 0| |18| 105|30.21| 0.00| 76| 66| 71|30| 0| 0| 107|30.12| 0.00| 80| 63| 57|16| 0| 0| 93|30.09| 0.00| 81| 69| 67|25| 0| 0| |21| 0|30.22| 0.00| 60| 58| 94|30| 0| 0| 0|30.13| 0.00| 60| 56| 87|16| 0| 0| 0|30.11| 0.00| 66| 64| 94|25| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 16 | SEP 17 | SEP 18 | | | | | |00| 0|30.12| 0.00| 65| 64| 96|25| 0| 0| 0|30.09| 0.00| 65| 64| 96|28| 0| 0| 0|29.83| 0.00| 67| 64| 90|22| 0| 5| |03| 0|30.12| 0.00| 63| 62| 96|25| 0| 0| 0|30.05| 0.00| 65| 64| 96|19| 0| 3| 0|29.78| 0.00| 66| 64| 94|21| 1| 8| |06| 0|30.13| 0.00| 63| 62| 96|25| 0| 0| 0|30.02| 0.00| 67| 65| 95|21| 0| 7| 0|29.74| 0.00| 65| 64| 95|22| 0| 0| |09| 290|30.17| 0.00| 70| 69| 97|25| 0| 0| 125|30.02| 0.00| 71| 67| 89|23| 1| 14| 93|29.72| 0.00| 68| 66| 95|24| 0| 0| |12| 735|30.17| 0.00| 80| 71| 74|07| 0| 0| 613|29.96| 0.00| 81| 68| 65|22| 2| 12| 272|29.70| 0.00| 75| 68| 77|30| 0| 6| |15| 519|30.13| 0.00| 83| 68| 62|29| 0| 5| 512|29.88| 0.00| 83| 65| 56|22| 5| 13| 330|29.69| 0.00| 79| 70| 73|30| 0| 6| |18| 84|30.10| 0.00| 82| 69| 65|34| 0| 0| 56|29.83| 0.00| 75| 65| 70|21| 1| 9| 77|29.70| 0.00| 73| 66| 78|32| 0| 4| |21| 0|30.10| 0.00| 66| 64| 93|34| 0| 0| 0|29.82| 0.00| 68| 62| 81|28| 0| 8| 0|29.77| 0.00| 61| 59| 93|02| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.12 | 0.16 | 0.18 | 0.20 | 0.24 | 0.27 | 0.28 | 0.30 | 0.34 | 0.36 | 0.42 | 0.46 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 03 | 03 | 03 | 03 | 03 | 03 | 03 | 11 | 11 | 11 | 11 | 11 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 2033 | 2039 | 2041 | 2048 | 2056 | 2112 | 2117 | 0240 | 0301 | 0240 | 0314 | 0345 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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
September 2018: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 19 | SEP 20 | SEP 21 | | | | | |00| 0|29.79| 0.00| 54| 53| 95|31| 0| 0| 0|30.11| 0.00| 52| 50| 94|05| 0| 0| | | | | | | | | | |03| 0|29.83| 0.00| 53| 51| 95|02| 0| 0| | | | | | | | | | | | | | | | | | | |06| 0|29.88| 0.00| 50| 48| 94|30| 0| 0| | | | | | | | | | | | | | | | | | | |09| 130|29.95| 0.00| 53| 50| 91|30| 0| 0| | | | | | | | | | | | | | | | | | | |12| 561|29.99| 0.00| 60| 53| 80|30| 0| 8| | | | | | | | | | | | | | | | | | | |15| 172|29.99| 0.00| 64| 53| 66|03| 0| 7| | | | | | | | | | | | | | | | | | | |18| 19|30.05| 0.00| 55| 50| 84|02| 0| 0| | | | | | | | | | | | | | | | | | | |21| 0|30.10| 0.00| 53| 50| 90|05| 0| 0| | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 22 | SEP 23 | SEP 24 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 25 | SEP 26 | SEP 27 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 28 | SEP 29 | SEP 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|30.121| 59| 57| 92| 0.2| 22 | 0.2| |03| 0|30.114| 59| 57| 94| 0.2| 22 | 0.2| |06| 0|30.124| 58| 56| 94| 0.1| 21 | 0.1| |09| 250|30.137| 64| 60| 88| 0.8| 23 | 0.7| |12| 549|30.127| 72| 62| 72| 0.8| 23 | 0.7| |15| 455|30.101| 75| 62| 65| 0.9| 23 | 0.8| |18| 93|30.084| 72| 62| 71| 0.4| 22 | 0.3| |21| 0|30.111| 61| 58| 90| 0.1| 23 | 0.1| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
September 2018: 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| | | | | | | | | | | | | | |0.02| | | | | |0.24|0.04| | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | |0.02|0.02| | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | |0.02|0.02| |0.02|0.04| | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11|0.06|0.14|0.21|0.07|0.03|0.03| | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | |0.01| | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | |0.01| | | | | | | | | | | | | | | |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 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.06|0.14|0.21|0.07|0.03|0.03|0.00|0.02|0.04|0.00|0.00|0.00|0.00|0.00|0.02|0.00|0.02|0.02|0.00|0.02|0.28|0.04|0.00|0.00|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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