LOCAL CLIMATOLOGICAL DATA
Hourly Summary
April 26, 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| 41.0 | 38.8 | 39.6 | 31|  71| 0.00| 30.02| 30.01|30.018| 0.0|255|  0|WSW|  0|256|    0 |
|01| 38.9 | 36.9 | 37.8 | 30|  75| 0.00| 30.02| 30.02|30.022| 0.0|255|  0|WSW|  0|256|    0 |
|02| 37.2 | 36.4 | 36.9 | 30|  75| 0.00| 30.03| 30.02|30.024| 0.0|254|  0|WSW|  0|256|    0 |
|03| 37.9 | 36.8 | 37.4 | 30|  74| 0.00| 30.03| 30.03|30.031| 0.7|194|  5|  S|  2|188|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 36.8 | 35.0 | 35.9 | 30|  78| 0.00| 30.05| 30.03|30.042| 0.8|182|  5|  S|  3|182|    0 |
|05| 35.2 | 34.1*| 34.6 | 30|  82| 0.00| 30.07| 30.05|30.061| 0.0|182|  0|  S|  0|182|    1 |
|06| 35.7 | 35.0 | 35.3 | 31|  84| 0.00| 30.08| 30.07|30.076| 0.0|182|  0|  S|  0|182|   34 |
|07| 46.1 | 35.7 | 41.1 | 36|  83| 0.00| 30.10| 30.08|30.090| 0.4|182|  6|  S|  3|182|  169 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 52.4 | 46.1 | 49.2 | 39|  68| 0.00| 30.11| 30.10|30.103| 0.5|187|  5|  S|  3|184|  431 |
|09| 54.8 | 51.7 | 52.7 | 41|  65| 0.00| 30.12| 30.11|30.115| 1.7|265|  8|WNW|  3|253|  584 |
|10| 57.3 | 54.5 | 55.5 | 40|  56| 0.00| 30.12| 30.12|30.119| 1.8|284|  8|  W|  6|264|  584 |
|11| 60.4 | 57.1 | 59.3 | 40|  49| 0.00| 30.12| 30.11|30.116| 3.3|276| 12|  W|  8|254|  822 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 61.7 | 59.7 | 60.9 | 41|  48| 0.00| 30.12| 30.11|30.115| 4.3|276| 13|  W|  7|269|  796 |
|13| 63.2 | 60.8 | 61.7 | 40|  45| 0.00| 30.11| 30.10|30.106| 4.6|282| 15|WNW| 10|267|  793 |
|14| 63.9 | 62.2 | 63.0 | 40|  43| 0.00| 30.10| 30.09|30.095| 4.0|289| 14|  W|  8|269|  676 |
|15| 64.9*| 63.0 | 64.0 | 40|  41| 0.00| 30.10| 30.09|30.092| 3.1|326| 12|WNW|  7|284|  623 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 64.6 | 63.6 | 64.0 | 40|  42| 0.00| 30.09| 30.09|30.088| 3.2|305| 19|  N|  7|340|  510 |
|17| 64.7 | 63.6 | 64.1 | 40|  41| 0.00| 30.10| 30.09|30.094| 3.2|304| 11|NNW|  6|291|  405 |
|18| 64.7 | 62.4 | 63.7 | 40|  41| 0.00| 30.10| 30.10|30.100| 2.0|308|  9|WNW|  4|296|  207 |
|19| 62.5 | 56.0 | 59.7 | 39|  46| 0.00| 30.12| 30.10|30.112| 0.6|294|  5|WNW|  2|294|   28 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 56.0 | 51.5 | 53.3 | 38|  57| 0.00| 30.14| 30.12|30.129| 0.0|242|  0|WNW|  0|294|    0 |
|21| 51.5 | 48.6 | 49.5 | 38|  64| 0.00| 30.15| 30.14|30.144| 0.0|242|  0|WNW|  0|294|    0 |
|22| 48.9 | 46.8 | 47.9 | 38|  68| 0.00| 30.15| 30.14|30.147| 0.0|242|  0|WNW|  0|294|    0 |
|23| 46.8 | 45.6 | 46.0 | 37|  71| 0.00| 30.16| 30.15|30.150| 0.0|242|  0|WNW|  0|294|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 30.16| 30.01|30.091| 1.4|287| 19|  N| 10|267| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     49.5    | 50.5 | 37|61.2| 4.54|  23  |   0  | ---- | -- | - |   16  |   13  | 277.6|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat  15|
   | 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.