LOCAL CLIMATOLOGICAL DATA
Hourly Summary
December 31, 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|  6.6 |  6.0*|  6.3 |  1|  78| 0.00| 29.55| 29.53|29.543| 2.8|252| 10| SW|  7|260|    0 |
|01|  7.5 |  6.6 |  7.2 |  2|  78| 0.00| 29.58| 29.55|29.565| 5.1|239| 14|  W|  8|248|    0 |
|02|  7.1 |  6.8 |  7.0 |  1|  76| 0.00| 29.58| 29.58|29.580| 3.6|237| 12| SW|  8|240|    0 |
|03|  7.8 |  6.9 |  7.2 |  2|  80| 0.00| 29.58| 29.57|29.578| 2.2|230|  9| SW|  5|232|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04|  8.2 |  7.8 |  8.0 |  1|  74| 0.00| 29.58| 29.56|29.567| 6.7|228| 19| SW| 11|225|    0 |
|05|  8.2 |  6.6 |  7.6 | -1|  68| 0.00| 29.57| 29.56|29.568| 4.1|225| 14|WSW|  8|227|    0 |
|06|  8.9 |  6.9 |  8.2 | -1|  67| 0.00| 29.59| 29.57|29.581| 3.6|216| 15| SW|  7|220|    0 |
|07|  8.7 |  7.2 |  7.9 |  0|  70| 0.00| 29.60| 29.59|29.596| 3.6|203| 13| SW|  6|212|    3 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 14.8 |  7.6 | 12.5 |  3|  66| 0.00| 29.61| 29.60|29.603| 7.7|225| 17|SSW| 11|229|   19 |
|09| 18.2 | 14.7 | 16.6 |  6|  63| 0.00| 29.63| 29.61|29.619| 7.1|223| 22| SW| 12|230|  157 |
|10| 20.8 | 18.2 | 19.3 |  7|  59| 0.00| 29.64| 29.61|29.627| 7.1|231| 19| SW| 10|238|  221 |
|11| 21.9 | 20.7 | 21.3 |  8|  55| 0.00| 29.62| 29.59|29.606| 6.9|230| 18| SW| 10|240|  263 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 21.2 | 20.5 | 20.9 |  5|  49| 0.00| 29.59| 29.58|29.588| 7.7|227| 21| SW| 12|227|  122 |
|13| 22.8*| 20.5 | 21.6 |  7|  53| 0.00| 29.59| 29.58|29.582| 6.8|223| 18|SSW| 10|225|  182 |
|14| 22.7 | 22.0 | 22.3 | 10|  59| 0.00| 29.58| 29.58|29.580| 5.5|219| 19|  S| 10|205|   85 |
|15| 22.7 | 20.8 | 21.9 | 12|  64| 0.00| 29.58| 29.57|29.579| 3.8|233| 15|  W|  8|250|   48 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 21.6 | 20.4 | 20.9 | 12|  69| 0.00| 29.59| 29.58|29.583| 1.6|213|  7|SSW|  3|227|    3 |
|17| 21.6 | 21.4 | 21.5 | 16|  80| 0.00| 29.59| 29.58|29.583| 1.4|193|  7|  S|  4|186|    0 |
|18| 21.6 | 21.3 | 21.4 | 18|  86| 0.00| 29.59| 29.57|29.575| 2.0|182| 12|SSE|  6|189|    0 |
|19| 22.1 | 21.5 | 21.9 | 17|  81| 0.00| 29.57| 29.55|29.560| 5.1|178| 17|  S|  9|175|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 21.7 | 20.7 | 21.1 | 15|  78| 0.00| 29.55| 29.54|29.546| 4.5|180| 17|  S|  8|168|    0 |
|21| 21.6 | 20.8 | 21.3 | 15|  77| 0.00| 29.54| 29.51|29.523| 5.3|176| 16|  S|  9|171|    0 |
|22| 21.7 | 21.4 | 21.6 | 16|  80| 0.00| 29.51| 29.48|29.498| 3.6|162| 12|  S|  7|169|    0 |
|23| 21.6 | 21.1 | 21.3 | 17|  83| 0.00| 29.48| 29.44|29.457| 3.1|150| 14|SSE|  6|158|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 29.64| 29.44|29.570| 4.6|216| 22| SW| 12|227| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     14.4    | 16.1 |  8|70.6| 4.52|  10  |  23  | ---- | -- | - |    9  |   12  |  46.0|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat  50|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                0.3 | of Snow, Ice Pellets or Ice     4 |  .........  | 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.