LOCAL CLIMATOLOGICAL DATA
Hourly Summary
December 8, 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| 11.5 | 11.1 | 11.4 |  8|  88| 0.00| 30.06| 30.04|30.051| 0.4|270|  6|  W|  3|263|    0 |
|01| 11.5 | 10.9 | 11.3 |  8|  87| 0.00| 30.07| 30.05|30.059| 0.0| 23|  3|NNE|  0| 23|    0 |
|02| 11.5 | 10.9 | 11.4 |  8|  88| 0.00| 30.08| 30.07|30.078| 0.0| 23|  3|NNE|  0| 23|    0 |
|03| 12.0 | 11.4 | 11.5 |  9|  88| 0.00| 30.10| 30.08|30.088| 0.2|266|  7|  W|  2|265|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 12.2*| 10.8 | 11.9 |  9|  87| 0.00| 30.14| 30.10|30.117| 3.1|272| 15|WNW|  8|260|    0 |
|05| 10.8 |  7.0 |  8.7 |  5|  83| 0.00| 30.19| 30.14|30.163| 3.9|284| 14|  W|  7|263|    0 |
|06|  7.0 |  3.6 |  5.2 | -0|  78| 0.00| 30.25| 30.19|30.219| 4.4|272| 16|  W|  8|273|    0 |
|07|  3.6 |  1.5 |  2.3 | -3|  79| 0.00| 30.29| 30.25|30.275| 2.8|286| 11|  W|  5|263|    4 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08|  1.5 |  0.0 |  0.6 | -5|  77| 0.00| 30.32| 30.29|30.305| 2.0|295| 10|  W|  4|274|   16 |
|09|  3.4 |  0.6 |  2.1 | -4|  75| 0.00| 30.33| 30.32|30.327| 1.7|281| 12|WSW|  7|281|   74 |
|10|  4.6 |  2.7 |  3.4 | -3|  73| 0.00| 30.33| 30.32|30.331| 2.0|268|  9|WNW|  7|282|   85 |
|11|  7.0 |  4.4 |  5.8 | -2|  69| 0.00| 30.32| 30.30|30.312| 1.4|259|  8|  W|  6|282|  295 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12|  9.3 |  7.0 |  8.2 | -1|  65| 0.00| 30.30| 30.28|30.291| 1.0|242|  7|WSW|  3|250|  494 |
|13| 11.2 |  9.3 | 10.1 | -0|  63| 0.00| 30.28| 30.27|30.275| 0.8|252|  8|WSW|  3|254|  566 |
|14| 11.0 |  8.4 |  9.8 |  0|  64| 0.00| 30.27| 30.27|30.268| 0.4|274|  4|WSW|  2|256|  175 |
|15|  8.4 |  5.3 |  7.0 | -1|  69| 0.00| 30.29| 30.27|30.279| 0.2|  8|  3|  N|  1|358|   27 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16|  5.4 |  0.5 |  3.4 | -2|  76| 0.00| 30.29| 30.28|30.288| 0.0| 25|  0|  N|  0|358|    0 |
|17|  0.5 | -2.0 | -0.8 | -5|  81| 0.00| 30.29| 30.28|30.285| 0.0| 25|  0|  N|  0|358|    0 |
|18| -1.8 | -3.3 | -2.7 | -7|  83| 0.00| 30.30| 30.29|30.290| 0.0| 25|  0|  N|  0|358|    0 |
|19| -3.0 | -5.1 | -3.9 | -8|  84| 0.00| 30.30| 30.29|30.298| 0.0| 25|  0|  N|  0|358|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| -3.5 | -5.3 | -4.2 | -8|  84| 0.00| 30.30| 30.30|30.299| 0.0| 25|  0|  N|  0|358|    0 |
|21| -3.8 | -5.8 | -4.7 | -8|  83| 0.00| 30.30| 30.30|30.298| 0.0| 25|  1|NNE|  0| 25|    0 |
|22| -4.8 | -6.5*| -5.8 | -9|  84| 0.00| 30.30| 30.29|30.294| 0.0| 25|  0|NNE|  0| 25|    0 |
|23| -5.0 | -6.1 | -5.6 | -9|  84| 0.00| 30.29| 30.28|30.288| 0.0| 25|  0|NNE|  0| 25|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 30.33| 30.04|30.241| 1.0|276| 16|  W|  8|260| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |      2.8    |  4.0 | -1|78.8| 0.71|  10  |   0  | ---- | -- | - |    6  |    4  |  72.3|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat  62|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                1.5 | of Snow, Ice Pellets or Ice     8 |  .........  | 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.