LOCAL CLIMATOLOGICAL DATA
Hourly Summary
July 22, 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| 67.9 | 66.4 | 67.1 | 63|  87| 0.00| 29.50| 29.49|29.496| 0.3|144|  6|ESE|  2|131|    0 |
|01| 68.4 | 67.9 | 68.1 | 64|  87| 0.15| 29.50| 29.48|29.489| 0.9|176|  9|  S|  4|171|    0 |
|02| 68.0 | 67.2 | 67.7 | 65|  91| 0.05| 29.49| 29.47|29.484| 0.7|179| 11|  S|  3|176|    0 |
|03| 67.2 | 66.6 | 66.9 | 65|  92| 0.00| 29.48| 29.47|29.477| 0.9|188| 10|SSE|  4|174|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 66.7 | 66.1 | 66.4 | 65|  94| 0.00| 29.49| 29.47|29.479| 0.6|189|  6|SSE|  2|158|    0 |
|05| 66.7 | 66.1 | 66.4 | 65|  94| 0.00| 29.51| 29.49|29.502| 0.5|172|  7|  S|  2|172|    3 |
|06| 66.3 | 65.5 | 65.8 | 64|  94| 0.00| 29.51| 29.50|29.508| 0.4|188|  9|SSE|  2|180|   38 |
|07| 67.4 | 66.3 | 67.1 | 66|  95| 0.00| 29.53| 29.51|29.519| 0.9|179|  9|SSE|  3|179|   72 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 70.8 | 67.2 | 69.5 | 68|  94| 0.00| 29.54| 29.52|29.527| 1.2|190|  7|SSE|  3|193|  246 |
|09| 72.6 | 70.1 | 71.5 | 68|  89| 0.00| 29.54| 29.53|29.537| 1.4|192| 14|  W|  6|222|  254 |
|10| 72.2 | 69.7 | 71.1 | 66|  84| 0.01| 29.56| 29.54|29.547| 3.8|243| 19| SW|  8|265|  217 |
|11| 74.2 | 68.9 | 71.5 | 63|  76| 0.00| 29.58| 29.56|29.567| 7.2|254| 20|  W| 11|260|  546 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 74.1 | 71.5 | 73.1 | 63|  71| 0.00| 29.61| 29.58|29.593| 6.4|251| 24|  W| 13|258|  714 |
|13| 74.4 | 71.0 | 72.6 | 62|  69| 0.00| 29.62| 29.60|29.614| 5.6|245| 18|WSW| 10|271|  665 |
|14| 75.2*| 71.3 | 73.6 | 62|  67| 0.00| 29.65| 29.62|29.635| 5.6|241| 20|WSW|  8|259|  608 |
|15| 73.4 | 69.9 | 71.6 | 61|  68| 0.00| 29.68| 29.65|29.662| 7.7|251| 25|  W| 13|262|  535 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 70.8 | 67.7 | 68.9 | 58|  68| 0.00| 29.70| 29.67|29.686| 7.3|249| 24| SE| 13|249|  407 |
|17| 71.2 | 66.2 | 68.9 | 58|  69| 0.00| 29.73| 29.70|29.720| 5.6|239| 21|  W| 10|243|  401 |
|18| 69.1 | 65.0 | 66.7 | 57|  72| 0.00| 29.75| 29.73|29.743| 5.4|240| 23|  W| 10|264|  173 |
|19| 65.0 | 62.8 | 63.7 | 56|  76| 0.00| 29.79| 29.75|29.771| 4.1|238| 16|  W|  8|240|   41 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 62.8 | 61.3 | 62.1 | 55|  78| 0.00| 29.82| 29.79|29.801| 4.9|242| 17|SSE|  8|238|    1 |
|21| 61.3 | 60.6 | 60.9 | 55|  81| 0.00| 29.86| 29.82|29.839| 2.1|236| 14|WSW|  6|245|    0 |
|22| 60.7 | 58.4 | 59.8 | 54|  80| 0.00| 29.88| 29.86|29.868| 3.8|261| 18|  W|  8|266|    0 |
|23| 58.5 | 54.4*| 56.5 | 51|  81| 0.00| 29.88| 29.87|29.876| 1.1|254| 11|  W|  5|256|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.21| 29.88| 29.47|29.623| 3.3|241| 25|  W| 13|258| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     64.8    | 67.4 | 61|81.6| 1.63|  23  |   3  | ---- | -- | - |   15  |   12  | 205.0|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat   0|
   | 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.