LOCAL CLIMATOLOGICAL DATA
Hourly Summary
December 27, 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|  7.4 |  7.0 |  7.2 |  3|  83| 0.00| 30.05| 30.03|30.035| 0.1| 18|  4|  N|  1| 12|    0 |
|01|  8.2 |  7.3 |  7.8 |  4|  84| 0.00| 30.05| 30.03|30.041| 0.0| 32|  0|  N|  0| 12|    0 |
|02|  9.1 |  8.1 |  8.6 |  5|  85| 0.00| 30.06| 30.05|30.056| 0.0| 32|  0|  N|  0| 12|    0 |
|03|  9.6 |  9.1 |  9.4 |  6|  86| 0.00| 30.06| 30.06|30.059| 0.0| 32|  0|  N|  0| 12|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 10.4 |  9.6 |  9.9 |  7|  86| 0.00| 30.08| 30.06|30.069| 0.0| 32|  2|NNE|  1| 32|    0 |
|05| 10.7 | 10.3 | 10.5 |  7|  87| 0.00| 30.10| 30.07|30.083| 0.1| 20|  4|NNE|  1| 29|    0 |
|06| 11.1 | 10.6 | 10.9 |  8|  87| 0.00| 30.13| 30.09|30.109| 0.0|  5|  1|  N|  0|  5|    0 |
|07| 11.2 | 10.6 | 10.9 |  8|  87| 0.00| 30.15| 30.13|30.135| 0.0|  5|  1|  N|  0|  5|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 13.0 | 10.8 | 11.8 |  9|  87| 0.00| 30.18| 30.15|30.162| 0.0|  5|  3|  N|  0|  5|    9 |
|09| 13.9 | 12.8 | 13.2 |  9|  84| 0.00| 30.20| 30.18|30.187| 0.0|  5|  0|  N|  0|  5|   23 |
|10| 15.5 | 13.6 | 14.5 | 10|  81| 0.00| 30.20| 30.19|30.194| 0.0|  5|  0|  N|  0|  5|   35 |
|11| 18.1 | 15.3 | 16.3 | 11|  79| 0.00| 30.19| 30.17|30.178| 0.3|331|  4|  W|  2|277|   94 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 18.4*| 15.6 | 16.8 | 11|  77| 0.00| 30.18| 30.17|30.176| 2.5|269|  9|  W|  4|265|  329 |
|13| 17.9 | 15.7 | 16.6 | 10|  75| 0.00| 30.20| 30.18|30.188| 2.2|265|  8|  W|  6|273|  325 |
|14| 16.5 | 15.5 | 16.1 |  9|  73| 0.00| 30.20| 30.19|30.196| 0.7|261|  6|  W|  3|262|  172 |
|15| 15.5 | 13.6 | 14.9 |  8|  72| 0.00| 30.22| 30.20|30.210| 0.2|262|  4|  W|  2|262|   23 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 13.6 | 10.7 | 12.1 |  6|  75| 0.00| 30.24| 30.22|30.227| 0.0|263|  1|  W|  0|263|    1 |
|17| 10.7 |  7.1 |  8.9 |  4|  79| 0.00| 30.24| 30.23|30.237| 0.0|263|  0|  W|  0|263|    0 |
|18|  7.1 |  5.1 |  6.0 |  2|  83| 0.00| 30.26| 30.24|30.244| 0.0|263|  0|  W|  0|263|    0 |
|19|  5.8 |  4.6 |  5.3 |  2|  85| 0.00| 30.26| 30.25|30.253| 0.0|263|  0|  W|  0|263|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20|  5.2 |  4.4 |  4.8 |  1|  85| 0.00| 30.26| 30.25|30.258| 0.0|263|  0|  W|  0|263|    0 |
|21|  4.4 |  2.5 |  3.4 | -0|  85| 0.00| 30.26| 30.26|30.262| 0.0|263|  0|  W|  0|263|    0 |
|22|  3.4 |  2.0 |  2.9 | -0|  86| 0.00| 30.26| 30.24|30.247| 0.0|263|  0|  W|  0|263|    0 |
|23|  2.2 |  1.2*|  1.7 | -2|  86| 0.00| 30.24| 30.22|30.229| 0.0|263|  0|  W|  0|263|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 30.26| 30.03|30.168| 0.3|272|  9|  W|  6|273| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |      9.8    | 10.0 |  6|82.3| 3.40|  21  |   0  | ---- | -- | - |   12  |   13  |  42.1|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat  55|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                0.8 | of Snow, Ice Pellets or Ice     6 |  .........  | 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.