LOCAL CLIMATOLOGICAL DATA
Hourly Summary
July 15, 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| 77.3 | 76.4 | 76.9 | 72|  84| 0.00| 29.71| 29.67|29.695| 1.6|231| 10|  W|  4|253|    0 |
|01| 77.1 | 74.9 | 75.9 | 71|  86| 0.00| 29.69| 29.66|29.673| 0.8|217| 11| SW|  4|202|    0 |
|02| 75.8 | 74.2 | 75.2 | 70|  85| 0.00| 29.69| 29.66|29.680| 2.9|237| 12|  W|  5|239|    0 |
|03| 74.3 | 73.2 | 73.9 | 69|  84| 0.00| 29.69| 29.66|29.673| 2.3|233| 11|SSE|  6|230|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 73.3 | 71.9 | 72.5 | 68|  85| 0.00| 29.70| 29.69|29.693| 2.2|235| 11|WSW|  5|267|    0 |
|05| 71.9 | 70.1 | 71.1 | 67|  87| 0.00| 29.71| 29.70|29.702| 0.8|220|  8|  W|  3|227|    1 |
|06| 70.1 | 68.5 | 69.1 | 66|  89| 0.00| 29.72| 29.71|29.714| 0.1|236|  3| SW|  1|236|   39 |
|07| 70.5 | 68.6 | 69.3 | 66|  88| 0.00| 29.74| 29.72|29.731| 0.5|241|  9|WSW|  4|252|  102 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 75.3 | 70.5 | 73.3 | 68|  82| 0.00| 29.74| 29.73|29.736| 2.2|260| 12|WSW|  5|265|  367 |
|09| 77.3 | 75.2 | 76.2 | 69|  77| 0.00| 29.74| 29.73|29.732| 2.7|268| 12| NW|  6|274|  544 |
|10| 78.7 | 77.3 | 78.0 | 69|  74| 0.00| 29.73| 29.72|29.721| 4.6|260| 18|WSW|  8|262|  639 |
|11| 78.5 | 76.3 | 77.5 | 68|  72| 0.00| 29.73| 29.72|29.724| 3.5|261| 15|WSW|  7|253|  511 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 76.8 | 73.4 | 74.9 | 66|  73| 0.00| 29.73| 29.72|29.726| 4.4|263| 20|WSW|  8|257|  377 |
|13| 76.8 | 73.4 | 74.5 | 65|  73| 0.00| 29.73| 29.72|29.727| 4.7|262| 20|WSW| 10|260|  400 |
|14|      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|15| 80.6*| 78.9 | 79.9 | 67|  64| 0.00| 29.73| 29.72|29.728| 2.9|263| 17|WNW|  6|259|  688 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 79.6 | 76.0 | 77.9 | 65|  66| 0.00| 29.73| 29.72|29.725| 2.5|262| 17|  W|  6|270|  444 |
|17| 79.4 | 77.1 | 77.8 | 65|  66| 0.00| 29.73| 29.72|29.725| 3.1|259| 14|  W|  6|251|  345 |
|18| 77.6 | 74.5 | 76.3 | 65|  67| 0.00| 29.73| 29.72|29.726| 3.9|259| 17|  W|  9|266|  131 |
|19| 74.5 | 71.5 | 73.3 | 63|  71| 0.00| 29.74| 29.73|29.733| 2.7|259| 15|  W|  7|257|   48 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 71.5 | 67.7 | 69.2 | 61|  76| 0.00| 29.75| 29.74|29.742| 1.5|255| 12|WNW|  4|266|    6 |
|21| 67.7 | 65.4 | 66.5 | 60|  81| 0.00| 29.76| 29.75|29.758| 0.3|203|  7|  W|  2|243|    0 |
|22| 65.5 | 65.0 | 65.2 | 60|  82| 0.00| 29.77| 29.76|29.764| 0.7|216|  8|WSW|  3|248|    0 |
|23| 65.6 | 64.8*| 65.3 | 60|  82| 0.00| 29.77| 29.76|29.768| 0.6|217|  8| SW|  3|248|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 29.77| 29.66|29.722| 2.2|254| 20|WSW| 10|260| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     72.7    | 73.5 | 66|77.9| 0.80|  23  |   1+ | ---- | -- | - |   12+ |   13  | 201.8|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat   0|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                0.0 | of Snow, Ice Pellets or Ice     0 |  .........  | Days |  Cool   8|
   +--------------------+-----------------------------------+-------------+------+----------+

  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.