LOCAL CLIMATOLOGICAL DATA
Hourly Summary
December 6, 2025

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| 16.9 | 15.0 | 15.9 |  7|  66| 0.00| 29.96| 29.92|29.939| 1.8|169| 10| SE|  5|159|    0 |
|01| 15.0 | 11.8*| 13.2 |  6|  72| 0.00| 29.92| 29.91|29.920| 0.7|171|  9|  S|  4|159|    0 |
|02| 16.0 | 13.1 | 14.9 |  8|  73| 0.00| 29.91| 29.90|29.908| 2.7|170| 10|  S|  4|163|    0 |
|03| 17.4 | 16.0 | 16.5 | 10|  75| 0.00| 29.90| 29.87|29.885| 1.6|170|  9|SSE|  4|159|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 17.4 | 15.6 | 16.5 | 11|  79| 0.00| 29.87| 29.85|29.859| 1.0|171|  9|  S|  5|174|    0 |
|05| 17.8 | 16.2 | 17.1 | 12|  82| 0.00| 29.85| 29.84|29.847| 0.9|169| 11|  S|  5|162|    0 |
|06| 19.7 | 16.6 | 18.1 | 14|  84| 0.00| 29.84| 29.83|29.838| 0.8|161| 10|  S|  4|168|    0 |
|07| 21.1 | 19.3 | 19.9 | 16|  83| 0.00| 29.85| 29.84|29.841| 1.1|177|  8|  S|  4|192|    5 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 22.5 | 21.1 | 21.8 | 18|  83| 0.00| 29.85| 29.83|29.836| 2.6|169| 10| SE|  5|167|   45 |
|09| 26.0 | 22.4 | 24.4 | 20|  82| 0.00| 29.83| 29.82|29.825| 5.0|173| 16|  S|  8|176|  123 |
|10| 29.0 | 26.0 | 27.6 | 22|  79| 0.00| 29.82| 29.78|29.802| 7.0|172| 21|  S| 12|175|  167 |
|11| 30.3 | 29.0 | 29.8 | 23|  77| 0.00| 29.79| 29.77|29.779| 7.1|175| 20|  S| 11|169|  208 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 29.9 | 29.1 | 29.4 | 23|  77| 0.00| 29.77| 29.75|29.759| 6.9|171| 22|SSE| 10|167|   98 |
|13| 30.0 | 29.2 | 29.5 | 23|  77| 0.00| 29.75| 29.74|29.743| 5.0|177| 17|  S|  9|176|   69 |
|14| 30.0 | 29.6 | 29.8 | 23|  75| 0.00| 29.75| 29.73|29.739| 5.3|180| 16|SSE|  9|175|   34 |
|15| 29.7 | 29.2 | 29.4 | 23|  77| 0.00| 29.76| 29.75|29.754| 4.6|175| 14|SSE|  8|170|   10 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 29.2 | 29.1 | 29.2 | 23|  77| 0.00| 29.78| 29.76|29.767| 4.1|177| 15|  S|  7|178|    0 |
|17| 29.6 | 29.2 | 29.4 | 23|  77| 0.00| 29.80| 29.77|29.786| 5.1|182| 16|SSE|  9|178|    0 |
|18| 29.6 | 29.5 | 29.5 | 23|  77| 0.00| 29.82| 29.80|29.807| 4.1|174| 16|  S|  8|170|    0 |
|19| 30.1 | 29.5 | 29.7 | 24|  78| 0.00| 29.84| 29.82|29.826| 3.2|184| 11|SSE|  6|184|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 30.6 | 30.1 | 30.4 | 25|  79| 0.00| 29.85| 29.84|29.846| 3.0|190| 10|  W|  6|181|    0 |
|21| 30.8 | 30.2 | 30.5 | 25|  79| 0.00| 29.86| 29.85|29.855| 3.1|200| 12|WSW|  7|194|    0 |
|22| 31.0*| 30.0 | 30.6 | 25|  79| 0.00| 29.88| 29.86|29.867| 3.7|214| 13|SSE|  7|232|    0 |
|23| 30.9 | 25.6 | 29.4 | 24|  82| 0.00| 29.92| 29.88|29.896| 5.2|258| 14|WSW|  9|279|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |  T  | 29.96| 29.73|29.830| 3.6|181| 22|SSE| 12|175| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     21.4    | 24.7 | 19|77.8| 0.51|   0  |  14  | ---- | -- | - |   12  |   10  |  31.7|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat  43|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                 T  | of Snow, Ice Pellets or Ice     4 |  .........  | 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.