LOCAL CLIMATOLOGICAL DATA
Hourly Summary
June 20, 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| 56.8 | 56.2 | 56.5 | 55|  94| 0.15| 29.52| 29.51|29.519| 3.3|259| 15|  W|  6|274|    0 |
|01| 56.3 | 56.0 | 56.1 | 54|  94| 0.02| 29.51| 29.51|29.512| 2.3|258| 11|WSW|  6|257|    0 |
|02| 56.4 | 56.1 | 56.3 | 55|  95| 0.01| 29.52| 29.51|29.518| 2.9|255| 12|WNW|  6|247|    0 |
|03| 56.4 | 56.0 | 56.3 | 55|  95| 0.01| 29.52| 29.52|29.520| 1.7|256| 10|  W|  6|247|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 56.0 | 55.7*| 55.8 | 54|  95| 0.01| 29.53| 29.52|29.522| 1.3|222|  7|  W|  3|256|    0 |
|05| 56.4 | 55.9 | 56.1 | 55|  95| 0.00| 29.54| 29.52|29.529| 0.9|202|  8|SSE|  4|226|    4 |
|06| 56.8 | 56.3 | 56.5 | 55|  95| 0.01| 29.56| 29.54|29.548| 0.3|210|  7|  W|  2|211|   13 |
|07| 57.2 | 56.8 | 56.9 | 55|  95| 0.00| 29.56| 29.55|29.555| 2.4|257| 14|WSW|  8|269|   27 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 59.1 | 57.1 | 58.1 | 57|  95| 0.01| 29.59| 29.56|29.577| 2.3|259| 11|  W|  5|275|   51 |
|09| 59.8 | 58.8 | 59.4 | 58|  95| 0.01| 29.60| 29.59|29.594| 2.7|267| 14|WNW|  7|260|  118 |
|10| 61.3 | 59.6 | 60.8 | 59|  95| 0.00| 29.61| 29.60|29.605| 3.4|264| 16|WSW|  8|270|  237 |
|11| 65.0 | 61.2 | 63.5 | 61|  91| 0.00| 29.63| 29.61|29.617| 3.3|261| 15|WSW|  7|252|  409 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 65.4 | 63.9 | 64.7 | 61|  87| 0.00| 29.63| 29.62|29.629| 4.1|267| 15| NW|  7|263|  325 |
|13| 68.8 | 65.4 | 66.4 | 61|  84| 0.00| 29.64| 29.63|29.630| 4.2|260| 14|SSW|  8|260|  441 |
|14| 69.9*| 63.0 | 66.9 | 61|  81| 0.06| 29.65| 29.63|29.642| 4.3|257| 15|  W|  8|266|  356 |
|15| 63.0 | 61.0 | 61.7 | 59|  90| 0.13| 29.66| 29.65|29.657| 0.3|241|  7|  W|  3|263|   76 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 62.1 | 60.7 | 61.5 | 59|  92| 0.07| 29.67| 29.66|29.664| 0.1|258| 10|  W|  3|260|  145 |
|17| 65.0 | 61.5 | 63.2 | 61|  92| 0.00| 29.67| 29.66|29.664| 0.1|247|  4|WSW|  2|247|  266 |
|18| 65.4 | 63.1 | 64.6 | 61|  89| 0.00| 29.67| 29.66|29.668| 0.0|248|  0|WSW|  0|247|   82 |
|19| 63.1 | 61.7 | 62.2 | 59|  91| 0.00| 29.69| 29.67|29.686| 0.0|247|  0|WSW|  0|247|   31 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 61.7 | 59.6 | 60.5 | 58|  92| 0.00| 29.71| 29.69|29.693| 0.0|251|  2|WSW|  0|253|    3 |
|21| 59.7 | 57.5 | 58.8 | 57|  93| 0.05| 29.74| 29.70|29.722| 0.7|264|  9|  W|  2|262|    0 |
|22| 57.6 | 56.2 | 56.7 | 55|  93| 0.00| 29.74| 29.72|29.730| 0.5|258|  8|  W|  4|254|    0 |
|23| 56.4 | 56.2 | 56.3 | 55|  94| 0.02| 29.73| 29.72|29.726| 0.0|252|  2|WSW|  0|252|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.56| 29.74| 29.51|29.614| 1.7|258| 16|WSW|  8|260| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     62.8    | 59.8 | 57|92.1| 5.66|  22  |   1  | ---- | -- | - |   10  |   13  | 107.8|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat   2|
   | 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.