LOCAL CLIMATOLOGICAL DATA
Hourly Summary
September 12, 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| 48.5 | 47.5 | 48.0 | 46|  92| 0.00| 30.16| 30.15|30.157| 0.0| 19|  0|NNE|  0| 18|    0 |
|01| 47.6 | 46.7 | 47.3 | 45|  93| 0.00| 30.18| 30.16|30.170| 0.0| 19|  0|NNE|  0| 18|    0 |
|02| 46.7 | 45.1 | 45.9 | 44|  92| 0.00| 30.18| 30.17|30.176| 0.0| 19|  0|NNE|  0| 18|    0 |
|03| 45.2 | 43.6 | 44.4 | 42|  93| 0.00| 30.18| 30.17|30.172| 0.0| 19|  0|NNE|  0| 18|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 43.6 | 43.1 | 43.3 | 41|  93| 0.00| 30.19| 30.17|30.184| 0.0| 19|  0|NNE|  0| 18|    0 |
|05| 43.2 | 42.0 | 42.7 | 41|  93| 0.00| 30.20| 30.19|30.198| 0.0| 19|  0|NNE|  0| 18|    0 |
|06| 42.0 | 41.5*| 41.7 | 40|  94| 0.00| 30.22| 30.20|30.212| 0.0| 19|  0|NNE|  0| 18|    4 |
|07| 44.6 | 41.7 | 43.1 | 42|  95| 0.00| 30.24| 30.22|30.231| 0.0| 19|  0|NNE|  0| 18|   22 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 54.5 | 44.6 | 49.3 | 48|  96| 0.01| 30.24| 30.23|30.233| 0.0| 19|  0|NNE|  0| 18|  210 |
|09| 62.3 | 54.4 | 58.1 | 55|  91| 0.00| 30.24| 30.23|30.234| 0.0| 19|  0|NNE|  0| 18|  425 |
|10| 66.0 | 62.3 | 64.3 | 52|  64| 0.00| 30.24| 30.23|30.238| 0.0| 43|  0|NNE|  0| 18|  569 |
|11| 67.9 | 66.0 | 67.3 | 52|  58| 0.00| 30.24| 30.23|30.237| 0.4|269| 10|  W|  5|265|  668 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 68.8 | 67.0 | 68.1 | 52|  56| 0.00| 30.23| 30.22|30.227| 0.8|318| 11| NW|  3|360|  717 |
|13| 69.9 | 68.3 | 69.2 | 52|  55| 0.00| 30.22| 30.21|30.215| 1.0|302|  7|  N|  4|242|  717 |
|14| 70.0 | 68.7 | 69.5 | 52|  54| 0.00| 30.21| 30.19|30.198| 1.2|300|  8|WSW|  3|275|  667 |
|15| 70.7*| 68.8 | 69.8 | 52|  53| 0.00| 30.19| 30.17|30.176| 0.9|350|  7|  W|  3| 72|  574 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 70.1 | 68.8 | 69.3 | 50|  51| 0.00| 30.17| 30.16|30.163| 0.8| 34|  5|NNE|  3| 37|  418 |
|17| 69.6 | 66.1 | 68.2 | 53|  58| 0.00| 30.16| 30.15|30.151| 0.2| 21|  5|  N|  2| 11|  177 |
|18| 66.2 | 58.4 | 62.5 | 53|  72| 0.00| 30.15| 30.15|30.151| 0.0| 11|  0|  N|  0| 11|   35 |
|19| 58.4 | 52.2 | 54.8 | 50|  83| 0.00| 30.16| 30.15|30.155| 0.0| 11|  0|  N|  0| 11|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 52.2 | 49.2 | 50.6 | 47|  87| 0.00| 30.16| 30.16|30.159| 0.0| 11|  0|  N|  0| 11|    0 |
|21| 49.3 | 47.3 | 48.1 | 45|  89| 0.00| 30.16| 30.15|30.154| 0.0| 11|  0|  N|  0| 11|    0 |
|22| 47.3 | 46.3 | 46.9 | 44|  90| 0.00| 30.16| 30.15|30.150| 0.0| 11|  0|  N|  0| 11|    0 |
|23| 46.4 | 45.3 | 45.9 | 43|  91| 0.00| 30.15| 30.14|30.147| 0.0| 11|  0|  N|  0| 11|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.01| 30.24| 30.14|30.187| 0.2|326| 11| NW|  5|265| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     56.1    | 54.9 | 48|78.8| 2.57|  10  |  23  | ---- | -- | - |   12  |   11  | 216.7|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat   8|
   | 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.