LOCAL CLIMATOLOGICAL DATA
Hourly Summary
December 24, 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| 30.5 | 29.9 | 30.2 | 28|  91| 0.00| 29.73| 29.72|29.722| 3.3|181| 12|SSE|  6|182|    0 |
|01| 30.9 | 30.4 | 30.7 | 29|  92| 0.00| 29.72| 29.71|29.714| 3.0|181| 12|SSE|  6|174|    0 |
|02| 31.2 | 30.8 | 30.9 | 29|  93| 0.00| 29.74| 29.72|29.723| 2.4|190| 11|  S|  5|176|    0 |
|03| 31.8*| 29.8 | 31.2 | 29|  93| 0.00| 29.78| 29.74|29.757| 4.2|261| 14|  W|  6|252|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 29.8 | 23.6 | 26.3 | 24|  91| 0.00| 29.84| 29.78|29.808| 5.0|280| 16|WSW| 10|270|    0 |
|05| 23.6 | 20.2 | 21.9 | 19|  90| 0.00| 29.91| 29.84|29.870| 2.8|280| 14|  W|  7|278|    0 |
|06| 20.2 | 18.5 | 19.3 | 17|  90| 0.00| 29.98| 29.91|29.941| 3.6|281| 13|  W|  6|280|    0 |
|07| 18.6 | 18.3*| 18.4 | 16|  90| 0.00| 30.03| 29.98|30.004| 1.9|288| 11|WSW|  6|279|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 19.0 | 18.5 | 18.8 | 16|  90| 0.00| 30.09| 30.03|30.065| 0.7|328|  9|  N|  3|335|    0 |
|09| 19.5 | 19.0 | 19.3 | 17|  90| 0.00| 30.13| 30.09|30.111| 0.7|328| 11| NW|  3|327|    3 |
|10| 20.0 | 19.5 | 19.7 | 17|  89| 0.00| 30.17| 30.13|30.151| 0.6|315|  6|  W|  2|309|    7 |
|11| 20.2 | 19.8 | 20.0 | 17|  89| 0.00| 30.18| 30.17|30.174| 1.0|325|  8| NW|  3|338|   11 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 20.8 | 19.7 | 20.2 | 17|  88| 0.00| 30.20| 30.18|30.192| 0.9|313| 10| NW|  4|326|   15 |
|13| 21.5 | 20.7 | 21.2 | 18|  87| 0.00| 30.23| 30.20|30.207| 0.8|304|  9|  W|  3|283|   18 |
|14| 21.8 | 21.2 | 21.5 | 18|  86| 0.00| 30.24| 30.22|30.225| 0.3|336|  7|  W|  2|290|   15 |
|15| 21.7 | 20.6 | 21.1 | 18|  86| 0.00| 30.27| 30.23|30.250| 0.3|348|  4| NW|  2|329|    4 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 20.7 | 19.7 | 20.2 | 17|  87| 0.00| 30.28| 30.26|30.271| 0.2| 37|  4|NNE|  2| 44|    0 |
|17| 19.7 | 19.3 | 19.5 | 17|  88| 0.00| 30.27| 30.26|30.268| 0.0| 34|  3|NNE|  0| 33|    0 |
|18| 19.5 | 19.2 | 19.4 | 17|  89| 0.00| 30.28| 30.26|30.270| 0.0| 30|  0|NNE|  0| 33|    0 |
|19| 19.4 | 19.2 | 19.3 | 17|  89| 0.00| 30.29| 30.26|30.275| 0.0| 30|  0|NNE|  0| 33|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 19.5 | 19.2 | 19.4 | 17|  89| 0.00| 30.26| 30.22|30.235| 0.0| 85|  0|NNE|  0| 33|    0 |
|21| 19.8 | 19.1 | 19.4 | 17|  89| 0.00| 30.22| 30.19|30.207| 0.3|165|  5|SSE|  2|169|    0 |
|22| 20.0 | 19.5 | 19.7 | 17|  89| 0.00| 30.19| 30.16|30.175| 0.1|169|  4|SSE|  1|169|    0 |
|23| 20.7 | 19.9 | 20.3 | 18|  89| 0.00| 30.17| 30.14|30.155| 1.1|183|  8|SSE|  3|175|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 30.29| 29.71|30.074| 1.4|260| 16|WSW| 10|270| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     25.0    | 22.0 | 19|89.4| 2.73|  19  |   1  | ---- | -- | - |    4  |    4  |   3.0|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat  40|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                2.4 | of Snow, Ice Pellets or Ice     7 |  .........  | 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.