LOCAL CLIMATOLOGICAL DATA
Hourly Summary
December 7, 2025

Station: Westford
Latitude: 44° 37' 38" N
Longitude: 73° 02' 30" W
Elevation (ground): 850 ft.
Time Zone: Eastern

+--+------------------------+----+-----+--------------------+------------------------+------+
|  |       Temperature      |    | Pre-|      Pressure      |           Wind         |Solar |
|  +------+------+------+---+ Hu-|cipi-|  Adj. to Sea Level +----+---+-------+-------+------+
|  |   M  |   M  |      |   |mid-| ta- +------+------+------+ Avg|Res| Peak  |2Minute| Mean |
|  |   a  |   i  |      | D | ity| tion|      |      |      |    |   +---+---+---+---+   W  |
|  |   x  |   n  |      | e |    |     |      |      |      |  S |   | S |   | S |   |   a  |
| H|   i  |   i  |   M  | w |  M |     |      |      |   M  |  p |   | p |   | p |   |   t  |
| o|   m  |   m  |   e  |   |  e |Water|   M  |   M  |   e  |  e | D | e | D | e | D |   t  |
| u|   u  |   u  |   a  | P |  a |     |   a  |   i  |   a  |  e | i | e | i | e | i |   s  |
| r|   m  |   m  |   n  | t |  n |Equiv|   x  |   n  |   n  |  d | r | d | r | d | r |  m²  |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
| 1|   2  |   3  |   4  | 5 |  6 |  7  |   8  |   9  |  10  | 11 | 12| 13| 14| 15| 16|  17  |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
|00| 25.6*| 22.4 | 23.8 | 21|  87| 0.00| 29.96| 29.92|29.940| 2.2|304| 12|WSW|  7|268|    0 |
|01| 22.4 | 21.4 | 21.9 | 18|  86| 0.00| 30.00| 29.95|29.975| 0.8|343|  9|  N|  4|347|    0 |
|02| 21.4 | 20.1 | 20.9 | 15|  79| 0.00| 30.03| 30.00|30.008| 0.6|340|  7|  W|  2|  9|    0 |
|03| 20.1 | 19.5 | 19.9 | 13|  75| 0.00| 30.04| 30.03|30.037| 2.0|290| 10|  W|  4|297|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 19.5 | 17.6 | 18.6 | 11|  72| 0.00| 30.04| 30.03|30.039| 1.0|280| 10|WNW|  4|278|    0 |
|05| 17.6 | 15.4 | 16.4 |  9|  72| 0.00| 30.05| 30.03|30.042| 0.0|274|  4|  W|  1|275|    0 |
|06| 15.5 | 12.9 | 14.5 |  8|  76| 0.00| 30.05| 30.04|30.046| 0.1|359|  3|  N|  1| 12|    0 |
|07| 12.9 | 11.7 | 12.3 |  7|  80| 0.00| 30.06| 30.05|30.052| 0.0| 13|  3|  N|  1| 13|    7 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 16.6 | 12.4 | 14.7 |  9|  77| 0.00| 30.05| 30.04|30.046| 0.1| 16|  3|  N|  2| 20|   52 |
|09| 18.5 | 16.6 | 17.6 | 10|  71| 0.00| 30.08| 30.04|30.065| 0.0| 24|  2|NNE|  0| 20|   74 |
|10| 19.5 | 18.4 | 19.0 | 11|  69| 0.00| 30.07| 30.05|30.060| 0.6| 47|  4| NE|  2| 39|  116 |
|11| 21.0 | 18.8 | 20.3 | 11|  68| 0.00| 30.05| 30.02|30.035| 0.2| 51|  4| NE|  2| 51|  137 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 21.4 | 20.6 | 21.0 | 13|  70| 0.00| 30.02| 29.99|30.003| 0.3| 51|  3| NE|  2| 51|  127 |
|13| 20.6 | 20.0 | 20.2 | 15|  78| 0.00| 29.99| 29.98|29.989| 0.1| 50|  4| NE|  2| 50|   70 |
|14| 20.3 | 19.2 | 19.6 | 16|  84| 0.00| 29.98| 29.95|29.967| 0.6| 49|  4| NE|  3| 49|   33 |
|15| 19.6 | 19.2 | 19.4 | 16|  87| 0.00| 29.95| 29.94|29.947| 0.2| 48|  4| NE|  2| 48|    6 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 19.6 | 19.5 | 19.5 | 17|  88| 0.00| 29.94| 29.93|29.936| 0.0| 48|  0| NE|  0| 48|    0 |
|17| 19.6 | 19.2 | 19.5 | 16|  88| 0.00| 29.93| 29.91|29.921| 0.0| 48|  0| NE|  0| 48|    0 |
|18| 19.3 | 17.2 | 18.4 | 15|  88| 0.00| 29.92| 29.90|29.909| 0.4|259|  5|WSW|  3|253|    0 |
|19| 17.3 | 14.8 | 15.8 | 13|  87| 0.00| 29.92| 29.90|29.912| 1.2|264| 10|  W|  5|268|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 14.8 | 12.0 | 13.4 | 10|  86| 0.00| 29.96| 29.92|29.936| 0.9|289|  8|WNW|  3|295|    0 |
|21| 12.1 | 11.2 | 11.5 |  8|  86| 0.00| 29.98| 29.96|29.972| 0.5|302|  7|  W|  2|278|    0 |
|22| 11.2 | 10.4*| 10.8 |  7|  86| 0.00| 30.02| 29.98|29.997| 0.5|291|  7|WNW|  3|288|    0 |
|23| 11.1 | 10.5 | 10.9 |  8|  87| 0.00| 30.04| 30.02|30.034| 0.5|298|  7|WNW|  3|280|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 30.08| 29.90|29.994| 0.5|308| 12|WSW|  7|268| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     18.0    | 17.5 | 12|80.3| 0.51|   9  |  18  | ---- | -- | - |    0  |    0  |  25.9|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat  47|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                3.6 | of Snow, Ice Pellets or Ice     8 |  .........  | Days |  Cool   0|
   +--------------------+-----------------------------------+-------------+------+----------+

  NOTES:
   Data in columns 4, 5, 6, 10, 11, 17 are means via continuous observations for each hour.
   Units: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches.
   Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for each hour.
   Column 12: Resultant wind is calculated by the vector sum of continuous wind observations.
   Precipitation types:
     1 FOG, 2 HEAVY FOG, 3 THUNDER, 4 ICE PELLETS, 5 HAIL, 6 GLAZE, 7 DUSTSTORM,
     8 SMOKE/HAZE, 9 BLOWING SNOW.
   Degree Days heating base is 65°F, cooling base is 65°F.