LOCAL CLIMATOLOGICAL DATA
Hourly Summary
July 23, 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| 56.4 | 54.1 | 55.1 | 50|  84| 0.00| 29.89| 29.88|29.889| 1.9|232| 11| SW|  5|244|    0 |
|01| 56.6 | 54.3 | 55.5 | 50|  83| 0.00| 29.91| 29.89|29.897| 1.4|255| 10| SW|  5|244|    0 |
|02| 54.3 | 50.9 | 52.4 | 48|  86| 0.00| 29.92| 29.91|29.914| 0.4|260|  6|  W|  3|261|    0 |
|03| 50.9 | 48.6 | 49.6 | 46|  89| 0.00| 29.94| 29.92|29.931| 0.0|252|  0|  W|  0|261|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 48.7 | 47.5 | 48.1 | 45|  90| 0.00| 29.97| 29.94|29.955| 0.0|251|  1|WSW|  0|251|    0 |
|05| 47.8 | 47.3*| 47.5 | 45|  92| 0.00| 29.98| 29.97|29.972| 0.0|251|  3|WSW|  0|251|    4 |
|06| 48.9 | 47.7 | 48.1 | 46|  93| 0.00| 30.01| 29.97|29.989| 0.1|241|  3|WSW|  1|245|   31 |
|07| 55.4 | 48.9 | 51.9 | 50|  93| 0.00| 30.02| 30.01|30.012| 0.9|177|  8|SSE|  2|180|  145 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 62.8 | 55.4 | 58.5 | 53|  82| 0.00| 30.02| 30.01|30.020| 0.8|177|  7|SSE|  3|194|  320 |
|09| 67.2 | 62.8 | 65.7 | 55|  69| 0.00| 30.03| 30.02|30.028| 1.3|210| 12|WSW|  4|217|  547 |
|10| 69.3 | 67.0 | 68.4 | 57|  67| 0.00| 30.04| 30.02|30.030| 2.8|231| 11| SW|  5|238|  644 |
|11| 70.3 | 68.3 | 69.1 | 58|  68| 0.00| 30.05| 30.04|30.043| 2.8|249| 11|  W|  6|248|  583 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 73.4 | 68.8 | 71.7 | 59|  64| 0.00| 30.04| 30.03|30.036| 2.4|219| 12| SW|  5|233|  858 |
|13| 75.4 | 72.7 | 74.1 | 59|  60| 0.00| 30.03| 30.02|30.026| 3.0|231| 13|SSE|  6|264|  826 |
|14| 75.8 | 74.2 | 75.0 | 58|  56| 0.00| 30.03| 30.02|30.024| 3.8|227| 13|WSW|  7|211|  793 |
|15| 77.4*| 74.9 | 76.0 | 59|  55| 0.00| 30.03| 30.02|30.027| 3.2|237| 12|  W|  7|262|  659 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 77.1 | 72.2 | 74.0 | 58|  58| 0.00| 30.04| 30.03|30.033| 2.6|248| 14|  W|  7|250|  276 |
|17| 76.1 | 73.2 | 74.9 | 59|  58| 0.00| 30.05| 30.04|30.041| 2.9|244| 13|  W|  6|245|  359 |
|18| 73.2 | 70.3 | 71.5 | 58|  62| 0.00| 30.06| 30.05|30.056| 3.8|249| 15|  W|  8|251|  124 |
|19| 70.3 | 66.1 | 68.3 | 56|  66| 0.00| 30.08| 30.06|30.070| 1.7|241|  9|  W|  6|259|   55 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 66.2 | 60.9 | 63.6 | 56|  75| 0.00| 30.09| 30.08|30.082| 0.2|223|  4| SW|  2|222|    7 |
|21| 60.9 | 58.2 | 59.1 | 54|  82| 0.00| 30.11| 30.09|30.097| 0.0|225|  0| SW|  0|222|    0 |
|22| 58.6 | 58.0 | 58.3 | 53|  84| 0.00| 30.12| 30.11|30.117| 0.3|220|  6|SSW|  3|221|    0 |
|23| 59.2 | 57.5 | 58.5 | 53|  82| 0.00| 30.14| 30.12|30.131| 0.2|229|  6|WSW|  2|234|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 30.14| 29.88|30.018| 1.5|235| 15|  W|  8|251| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     62.3    | 62.3 | 54|74.9| 1.63|  23  |   0  | ---- | -- | - |   18  |   18  | 259.6|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat   3|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                0.0 | 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.