LOCAL CLIMATOLOGICAL DATA
Hourly Summary
December 5, 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| -0.1 | -3.8 | -2.2 | -9|  73| 0.00| 30.30| 30.30|30.298| 0.0|259|  2|WSW|  0|259|    0 |
|01| -1.6 | -3.1 | -2.2 | -8|  75| 0.00| 30.31| 30.30|30.303| 0.0|259|  2|WSW|  0|259|    0 |
|02| -1.9 | -3.9 | -2.6 | -8|  77| 0.00| 30.31| 30.29|30.304| 0.0|259|  0|WSW|  0|259|    0 |
|03| -3.7 | -7.3 | -5.6 |-11|  79| 0.00| 30.29| 30.26|30.275| 0.0|259|  0|WSW|  0|259|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| -7.0 | -7.7*| -7.3 |-11|  82| 0.00| 30.27| 30.26|30.264| 0.0|259|  0|WSW|  0|259|    0 |
|05| -5.9 | -7.6 | -6.9 |-11|  82| 0.00| 30.28| 30.26|30.272| 0.0|259|  2|WSW|  0|259|    0 |
|06| -6.1 | -7.4 | -6.7 |-11|  82| 0.00| 30.28| 30.27|30.277| 0.2|229|  4|SSW|  1|214|    0 |
|07| -1.9 | -6.2 | -4.1 | -9|  81| 0.00| 30.28| 30.27|30.278| 3.2|176| 11|  S|  6|167|    9 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08|  2.0 | -1.9 | -0.0 | -6|  75| 0.00| 30.28| 30.27|30.276| 4.6|171| 14|SSE|  8|167|   41 |
|09|  5.8 |  2.0 |  4.3 | -4|  66| 0.00| 30.27| 30.26|30.268| 4.8|172| 17|SSE|  9|178|  120 |
|10| 10.1 |  5.8 |  8.2 | -3|  59| 0.00| 30.26| 30.22|30.243| 4.1|171| 16|SSE|  8|164|  155 |
|11| 14.1 | 10.1 | 12.8 | -3|  49| 0.00| 30.22| 30.17|30.191| 3.9|176| 14|  S|  7|160|  324 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 17.3 | 14.1 | 16.0 | -4|  40| 0.00| 30.17| 30.12|30.141| 5.6|178| 19|SSE| 10|164|  396 |
|13| 18.6*| 17.3 | 18.2 | -4|  36| 0.00| 30.12| 30.08|30.098| 5.8|178| 19|SSE| 10|181|  361 |
|14| 18.5 | 15.8 | 17.2 | -4|  37| 0.00| 30.08| 30.06|30.072| 6.8|174| 20|SSE| 10|175|  106 |
|15| 16.2 | 15.5 | 15.8 | -4|  41| 0.00| 30.06| 30.05|30.053| 6.1|176| 19|SSE|  9|171|   34 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 16.5 | 15.9 | 16.1 | -2|  43| 0.00| 30.05| 30.04|30.045| 6.0|173| 19|  S| 10|181|    1 |
|17| 17.3 | 16.4 | 16.9 | -1|  44| 0.00| 30.04| 30.02|30.027| 6.3|171| 17|SSE| 11|163|    0 |
|18| 17.7 | 17.2 | 17.5 |  0|  46| 0.00| 30.02| 30.01|30.021| 4.7|175| 14|  S|  8|175|    0 |
|19| 17.9 | 17.6 | 17.8 |  2|  49| 0.00| 30.01| 30.00|30.011| 4.6|176| 14|  S|  8|180|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 17.8 | 16.5 | 16.9 |  3|  53| 0.00| 30.01| 30.00|30.005| 4.7|176| 14|  S|  7|176|    0 |
|21| 16.9 | 16.4 | 16.6 |  4|  57| 0.00| 30.00| 29.99|29.995| 4.0|179| 15|SSE|  7|175|    0 |
|22| 17.6 | 16.8 | 17.2 |  6|  60| 0.00| 29.99| 29.98|29.984| 4.0|171| 14|SSE|  7|164|    0 |
|23| 17.3 | 16.4 | 16.9 |  7|  64| 0.00| 29.98| 29.96|29.967| 2.7|176| 12|  S|  6|169|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 30.31| 29.96|30.153| 3.4|175| 20|SSE| 11|163| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |      5.5    |  7.9 | -4|60.4| 0.51|   2  |  23  | ---- | -- | - |   14  |   17  |  64.4|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat  59|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                0.0 | of Snow, Ice Pellets or Ice     6 |  .........  | 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.