LOCAL CLIMATOLOGICAL DATA
Hourly Summary
March 13, 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| 22.7 | 21.7 | 22.5 | 17|  78| 0.00| 29.91| 29.91|29.910| 4.0|272| 14|WSW|  9|283|    0 |
|01| 21.8 | 20.7*| 21.1 | 17|  85| 0.00| 29.93| 29.91|29.921| 1.8|274|  9|  W|  6|274|    0 |
|02| 21.4 | 20.9 | 21.2 | 17|  84| 0.00| 29.95| 29.93|29.940| 1.7|259| 11| SW|  6|251|    0 |
|03| 21.5 | 21.3 | 21.4 | 16|  79| 0.00| 29.96| 29.95|29.956| 3.1|266| 12|WSW|  8|256|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 21.5 | 21.3 | 21.3 | 16|  79| 0.00| 29.97| 29.96|29.961| 1.1|259|  9|WSW|  6|259|    0 |
|05| 21.3 | 21.1 | 21.2 | 16|  80| 0.00| 29.98| 29.96|29.970| 0.2|257|  4|WSW|  3|257|    0 |
|06| 21.6 | 21.0 | 21.3 | 16|  79| 0.00| 29.99| 29.98|29.988| 0.0|257|  2|WSW|  1|257|    0 |
|07| 22.1 | 21.5 | 21.9 | 16|  78| 0.00| 30.00| 29.99|29.996| 0.1|255|  4|WSW|  1|255|   13 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 23.7 | 22.1 | 22.8 | 17|  77| 0.00| 30.02| 30.00|30.013| 1.2|236|  9|WSW|  5|228|   64 |
|09| 25.7 | 23.6 | 24.4 | 18|  75| 0.00| 30.01| 30.00|30.001| 0.9|215|  7|  S|  3|181|  144 |
|10| 26.6 | 25.5 | 26.1 | 18|  71| 0.00| 30.01| 29.98|30.001| 3.2|215| 12| SW|  6|233|  214 |
|11| 29.1 | 26.4 | 28.5 | 19|  68| 0.00| 29.98| 29.96|29.969| 2.5|186| 10| SW|  7|195|  388 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 31.4 | 28.4 | 30.1 | 19|  64| 0.00| 29.97| 29.94|29.950| 3.5|162| 12|ESE|  8|174|  404 |
|13| 32.1 | 31.2 | 31.7 | 19|  60| 0.00| 29.95| 29.93|29.938| 4.2|182| 15|SSE|  8|170|  277 |
|14| 31.9 | 31.3 | 31.6 | 20|  61| 0.00| 29.93| 29.88|29.908| 4.9|167| 17|SSE|  8|177|  181 |
|15| 31.9 | 31.2 | 31.6 | 19|  60| 0.00| 29.88| 29.85|29.863| 4.8|160| 17|SSE|  9|170|  133 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 32.0 | 31.5 | 31.7 | 19|  58| 0.00| 29.85| 29.83|29.837| 4.0|167| 18|  S|  9|170|   80 |
|17| 32.2*| 31.6 | 31.9 | 18|  57| 0.00| 29.83| 29.80|29.808| 2.6|157| 11|SSE|  5|173|   62 |
|18| 32.0 | 31.6 | 31.8 | 18|  57| 0.00| 29.81| 29.78|29.796| 2.9|166| 12|  S|  6|171|    9 |
|19| 31.6 | 31.3 | 31.4 | 20|  61| 0.00| 29.79| 29.78|29.782| 0.5|154| 10| SW|  4|189|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 31.6 | 30.9 | 31.4 | 21|  65| 0.00| 29.78| 29.77|29.777| 2.1|168| 11|  E|  5|139|    0 |
|21| 31.1 | 30.8 | 30.9 | 23|  71| 0.00| 29.78| 29.75|29.763| 1.2|151|  9|ESE|  5|101|    0 |
|22| 31.4 | 31.0 | 31.2 | 24|  76| 0.00| 29.75| 29.71|29.733| 2.5|131| 11|ESE|  6|121|    0 |
|23| 31.0 | 29.0 | 29.5 | 26|  86| 0.00| 29.72| 29.68|29.700| 2.2|150| 14|SSE|  8|158|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 30.02| 29.68|29.895| 2.3|187| 18|  S|  9|170| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     26.5    | 27.0 | 19|71.2| 1.11|   8  |  23  | ---- | -- | - |   16  |   16  |  82.1|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat  38|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                0.2 | of Snow, Ice Pellets or Ice     0 |  .........  | 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.