LOCAL CLIMATOLOGICAL DATA
Hourly Summary
September 14, 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| 65.2 | 63.6 | 64.6 | 62|  92| 0.00| 29.77| 29.75|29.766| 4.0|256| 17| SW|  8|259|    0 |
|01| 63.6 | 61.3 | 62.5 | 59|  88| 0.00| 29.79| 29.77|29.782| 1.2|253|  9|  W|  5|264|    0 |
|02| 61.3 | 59.3 | 60.2 | 56|  85| 0.00| 29.81| 29.79|29.803| 1.7|255| 11|  W|  6|263|    0 |
|03| 59.4 | 55.9 | 57.4 | 53|  84| 0.00| 29.83| 29.81|29.817| 1.8|242|  9|WSW|  6|263|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 56.0 | 54.9 | 55.6 | 51|  83| 0.00| 29.88| 29.83|29.852| 4.2|257| 17|WSW|  8|261|    0 |
|05| 54.9 | 53.6 | 54.1 | 49|  84| 0.00| 29.91| 29.87|29.892| 4.8|258| 15|SSW|  9|262|    0 |
|06| 54.0 | 53.5 | 53.8 | 49|  85| 0.00| 29.94| 29.91|29.928| 3.1|258| 17|  W|  6|274|    4 |
|07| 53.6 | 52.9 | 53.3 | 49|  85| 0.00| 29.97| 29.94|29.954| 3.7|261| 17|  W|  7|263|   50 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 56.4 | 53.3 | 54.6 | 50|  84| 0.00| 30.00| 29.97|29.986| 2.5|260| 18|  W|  7|262|  168 |
|09| 57.4 | 56.4 | 57.0 | 50|  79| 0.00| 30.04| 30.00|30.018| 2.8|261| 19|  W| 10|265|  304 |
|10| 60.6 | 57.1 | 58.6 | 51|  76| 0.00| 30.05| 30.03|30.045| 1.6|253| 13| NW|  6|245|  307 |
|11| 60.9 | 58.5 | 59.6 | 51|  72| 0.00| 30.06| 30.05|30.053| 2.7|257| 16|WSW|  8|259|  419 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 62.2 | 60.2 | 61.3 | 51|  69| 0.00| 30.07| 30.05|30.062| 2.0|256| 14|  W|  6|255|  414 |
|13| 62.9 | 60.2 | 61.7 | 51|  69| 0.00| 30.08| 30.06|30.069| 2.1|260| 13|WSW|  7|259|  411 |
|14| 65.7*| 61.7 | 64.2 | 52|  65| 0.00| 30.07| 30.06|30.067| 2.2|263| 17|WSW|  8|264|  572 |
|15| 64.8 | 62.0 | 63.3 | 51|  65| 0.00| 30.08| 30.07|30.074| 2.3|256| 16|  W|  6|251|  425 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 63.6 | 60.6 | 62.4 | 51|  67| 0.00| 30.11| 30.08|30.092| 1.1|258| 10|  W|  4|250|  212 |
|17| 60.6 | 58.1 | 59.7 | 52|  75| 0.00| 30.14| 30.11|30.122| 0.2|264|  6|  W|  1|236|   83 |
|18| 58.2 | 55.9 | 57.1 | 50|  78| 0.00| 30.16| 30.14|30.151| 0.5|246|  8|WSW|  2|251|   25 |
|19| 55.9 | 51.2 | 53.5 | 48|  80| 0.00| 30.18| 30.16|30.174| 0.1|259|  7|WSW|  1|258|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 51.2 | 48.3 | 49.6 | 46|  86| 0.00| 30.20| 30.18|30.191| 0.0|263|  0|WSW|  0|258|    0 |
|21| 49.0 | 48.0*| 48.4 | 45|  89| 0.00| 30.21| 30.20|30.208| 0.0|262|  3|  W|  1|262|    0 |
|22| 49.4 | 48.8 | 49.1 | 46|  89| 0.00| 30.22| 30.21|30.212| 0.1|287|  6|  W|  1|263|    0 |
|23| 49.1 | 48.4 | 48.8 | 46|  89| 0.00| 30.24| 30.20|30.220| 0.3|344|  6|NNW|  1|342|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 30.24| 29.75|30.022| 1.9|258| 19|  W| 10|265| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     56.8    | 57.1 | 51|80.0| 2.16|  23  |   0  | ---- | -- | - |    9  |    9  | 141.4|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | 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.