LOCAL CLIMATOLOGICAL DATA
Hourly Summary
July 19, 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| 64.2 | 62.6 | 63.5 | 62|  94| 0.01| 29.52| 29.50|29.515| 3.4|255| 19|  W|  8|260|    0 |
|01| 62.7 | 59.4 | 60.7 | 59|  93| 0.00| 29.57| 29.52|29.544| 2.9|259| 14|WSW|  7|255|    0 |
|02| 59.6 | 57.3 | 58.4 | 56|  92| 0.00| 29.61| 29.57|29.589| 4.5|261| 17|WSW|  8|262|    0 |
|03| 57.3 | 56.5*| 56.8 | 54|  91| 0.00| 29.64| 29.60|29.622| 3.0|263| 17|WNW|  7|264|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 57.3 | 57.0 | 57.2 | 55|  91| 0.00| 29.65| 29.63|29.640| 2.0|258| 15|  W|  6|261|    0 |
|05| 57.2 | 56.5 | 56.9 | 54|  90| 0.00| 29.67| 29.65|29.658| 2.6|261| 18|WNW|  8|260|    3 |
|06| 57.5 | 56.8 | 56.9 | 54|  90| 0.00| 29.68| 29.67|29.672| 2.3|257| 12|WNW|  5|256|   42 |
|07| 58.0 | 57.5 | 57.7 | 54|  88| 0.00| 29.70| 29.68|29.689| 3.1|263| 15|  W|  6|265|   51 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 61.6 | 57.7 | 59.5 | 55|  86| 0.00| 29.72| 29.70|29.714| 2.1|263| 17|WSW|  7|255|  196 |
|09| 63.5 | 61.5 | 62.2 | 57|  82| 0.00| 29.74| 29.72|29.731| 2.7|264| 16|  W|  7|265|  287 |
|10| 67.5 | 62.1 | 64.3 | 58|  79| 0.00| 29.75| 29.74|29.740| 3.2|263| 16|WSW|  8|274|  614 |
|11| 69.1 | 67.5 | 68.1 | 60|  74| 0.00| 29.76| 29.74|29.750| 3.2|263| 19|  W|  8|275|  805 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 70.1 | 68.2 | 69.3 | 59|  70| 0.00| 29.77| 29.75|29.759| 4.1|257| 20| NW|  9|256|  785 |
|13| 71.2 | 68.2 | 69.3 | 59|  70| 0.00| 29.76| 29.75|29.753| 3.2|264| 15|WNW|  7|248|  684 |
|14| 72.2*| 70.4 | 71.4 | 59|  66| 0.00| 29.77| 29.75|29.760| 3.4|260| 19|  N|  8|270|  800 |
|15| 71.7 | 67.7 | 69.9 | 58|  66| 0.00| 29.78| 29.77|29.775| 3.6|259| 20|  W|  9|269|  461 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 72.0 | 69.7 | 71.0 | 58|  64| 0.00| 29.79| 29.78|29.781| 3.3|261| 16|  W|  8|272|  614 |
|17| 71.4 | 69.3 | 70.5 | 57|  63| 0.00| 29.79| 29.78|29.786| 3.8|258| 16|  W|  9|257|  404 |
|18| 70.6 | 67.3 | 69.4 | 57|  64| 0.00| 29.79| 29.78|29.787| 2.1|262| 14|WSW|  7|248|  143 |
|19| 67.3 | 63.1 | 65.4 | 55|  70| 0.00| 29.80| 29.79|29.793| 1.6|252| 11|  W|  7|251|   39 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 63.1 | 62.2 | 62.5 | 54|  74| 0.00| 29.81| 29.80|29.807| 0.6|241|  6| SW|  2|244|    2 |
|21| 63.3 | 62.2 | 62.8 | 54|  72| 0.00| 29.82| 29.81|29.819| 1.6|241| 11|  W|  5|237|    0 |
|22| 62.2 | 60.2 | 61.1 | 53|  75| 0.00| 29.83| 29.82|29.825| 1.1|249| 11|  W|  3|260|    0 |
|23| 60.8 | 58.1 | 59.9 | 53|  79| 0.00| 29.84| 29.83|29.836| 0.3|243|  8| SW|  3|241|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.01| 29.84| 29.50|29.723| 2.7|259| 20| NW|  9|256| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     64.3    | 63.5 | 56|78.5| 1.42|  23  |   0  | ---- | -- | - |   12+ |   12  | 247.1|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | 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.