LOCAL CLIMATOLOGICAL DATA
Hourly Summary
January 11, 2026

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| 34.4 | 33.8 | 34.1 | 32|  91| 0.00| 29.74| 29.70|29.721| 2.6|182| 11|SSE|  7|168|    0 |
|01| 33.9 | 32.6 | 33.2 | 31|  92| 0.00| 29.73| 29.71|29.723| 4.4|169| 12|SSE|  7|181|    0 |
|02| 33.8 | 32.6 | 33.1 | 31|  93| 0.00| 29.72| 29.66|29.682| 4.6|153| 14|ESE|  7|151|    0 |
|03| 34.1 | 33.7 | 33.9 | 32|  92| 0.00| 29.69| 29.66|29.677| 2.9|179| 13|SSW|  7|156|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 33.8 | 33.4 | 33.5 | 32|  92| 0.00| 29.68| 29.67|29.674| 3.7|167| 14|SSE|  6|162|    0 |
|05| 33.8 | 33.5 | 33.6 | 32|  93| 0.00| 29.68| 29.66|29.670| 3.8|173| 13|SSE|  7|175|    0 |
|06| 34.7 | 33.7 | 34.2 | 32|  93| 0.00| 29.70| 29.67|29.690| 4.5|188| 15|SSE|  8|176|    0 |
|07| 34.5 | 33.0 | 33.7 | 32|  93| 0.00| 29.70| 29.69|29.693| 2.8|185| 12|  S|  6|186|    4 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 34.0 | 32.9 | 33.3 | 32|  93| 0.00| 29.69| 29.68|29.688| 2.4|185| 10|  S|  6|175|   23 |
|09| 34.9 | 33.9 | 34.4 | 32|  93| 0.00| 29.69| 29.69|29.691| 4.7|222| 12|WSW|  8|248|  120 |
|10| 35.2 | 33.9 | 34.7 | 31|  88| 0.00| 29.70| 29.68|29.696| 5.4|233| 16| SW| 10|238|  122 |
|11| 36.5*| 35.2 | 36.0 | 27|  70| 0.00| 29.68| 29.66|29.668| 7.2|229| 19|WSW| 11|244|  237 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 35.4 | 34.8 | 35.0 | 26|  68| 0.00| 29.66| 29.62|29.639| 4.1|226| 14|SSW|  9|227|  136 |
|13| 35.4 | 34.8 | 35.1 | 25|  66| 0.00| 29.62| 29.61|29.614| 3.6|207| 19| SE|  7|186|  146 |
|14| 35.6 | 34.1 | 34.7 | 24|  65| 0.00| 29.61| 29.60|29.607| 3.1|203| 12|SSE|  7|180|   57 |
|15| 34.3 | 32.9 | 33.7 | 24|  69| 0.00| 29.61| 29.60|29.603| 2.8|206| 13|  W|  7|180|   24 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 33.4 | 27.9 | 29.2 | 25|  84| 0.00| 29.64| 29.60|29.631| 7.4|232| 28|  W| 18|255|    0 |
|17| 29.8 | 29.0 | 29.3 | 24|  81| 0.00| 29.64| 29.63|29.632| 5.5|220| 15| SW|  9|224|    0 |
|18| 29.9 | 28.9 | 29.3 | 24|  81| 0.00| 29.64| 29.62|29.630| 5.5|221| 15|SSW|  9|231|    0 |
|19| 29.4 | 28.7 | 29.2 | 24|  81| 0.00| 29.65| 29.63|29.628| 5.0|226| 21| SW| 11|230|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 28.7 | 23.4 | 25.3 | 21|  84| 0.00| 29.69| 29.65|29.668| 6.8|268| 22| SW| 12|262|    0 |
|21| 23.5 | 20.9 | 21.9 | 16|  77| 0.00| 29.73| 29.69|29.710| 9.5|261| 26|  W| 15|269|    0 |
|22| 21.0 | 19.3 | 20.2 | 14|  76| 0.00| 29.77| 29.73|29.751|10.2|256| 26|  W| 15|249|    0 |
|23| 19.3 | 17.5*| 18.3 | 13|  79| 0.00| 29.81| 29.77|29.794| 9.1|255| 23|WSW| 14|248|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 29.81| 29.60|29.674| 5.1|222| 28|  W| 18|255| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     27.0    | 31.2 | 27|83.0| 0.64|  23  |  15  | ---- | -- | - |   16  |   16  |  36.2|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat  37|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                0.2 | 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.