LOCAL CLIMATOLOGICAL DATA
Hourly Summary
May 28, 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| 54.5 | 52.6 | 54.0 | 50|  87| 0.00| 29.80| 29.78|29.792| 0.1| 37|  5|NNE|  2| 33|    0 |
|01| 53.5 | 53.0 | 53.3 | 50|  88| 0.00| 29.80| 29.79|29.795| 0.0| 27|  0|NNE|  0| 33|    0 |
|02| 53.0 | 52.1 | 52.4 | 49|  88| 0.00| 29.80| 29.79|29.795| 0.0| 27|  0|NNE|  0| 33|    0 |
|03| 53.3 | 52.4 | 52.9 | 50|  89| 0.02| 29.81| 29.80|29.801| 0.0|353|  4| NW|  0| 24|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 53.3 | 50.6 | 52.2 | 49|  90| 0.00| 29.82| 29.81|29.810| 0.1|328|  8|  N|  1|340|    0 |
|05| 50.6 | 49.0 | 49.7 | 47|  90| 0.01| 29.83| 29.81|29.822| 0.1|360|  6|  N|  1|358|   10 |
|06| 49.4 | 48.7*| 48.9 | 46|  91| 0.00| 29.85| 29.83|29.839| 0.1|  5|  6|NNE|  1| 20|   26 |
|07| 54.8 | 49.4 | 51.6 | 48|  89| 0.00| 29.87| 29.84|29.858| 0.3|  6|  7|  W|  2| 15|  200 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 59.0 | 54.8 | 57.0 | 50|  78| 0.00| 29.88| 29.87|29.872| 0.8|354| 10|  N|  4|344|  444 |
|09| 60.6 | 59.0 | 59.8 | 51|  73| 0.00| 29.88| 29.88|29.879| 1.2|308| 10|  W|  4|261|  566 |
|10| 62.0 | 59.2 | 60.6 | 51|  71| 0.00| 29.89| 29.88|29.885| 2.4|273| 17|WNW|  7|274|  723 |
|11|      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 57.9 | 57.5 | 57.7 | 49|  73| 0.00| 29.90| 29.90|29.897| 2.6|280| 12| SW|  6|261|  258 |
|13| 58.5 | 57.2 | 57.8 | 49|  74| 0.00| 29.91| 29.90|29.902| 1.6|280| 16|WSW|  7|264|  259 |
|14| 59.5 | 57.2 | 58.0 | 50|  74| 0.00| 29.91| 29.90|29.906| 1.3|300| 13| NE|  5|351|  279 |
|15| 61.0 | 59.2 | 60.1 | 51|  72| 0.00| 29.91| 29.90|29.903| 1.6|342| 16|NNW|  5|352|  308 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 63.9*| 60.4 | 62.5 | 52|  69| 0.00| 29.90| 29.90|29.900| 1.4|302| 13|  W|  5|263|  360 |
|17| 61.7 | 59.2 | 60.1 | 51|  73| 0.00| 29.91| 29.90|29.904| 0.4|351|  9| NW|  3|  3|  124 |
|18| 59.6 | 58.0 | 59.0 | 52|  77| 0.00| 29.91| 29.91|29.910| 0.3| 30|  8|ENE|  2| 48|  109 |
|19| 58.3 | 56.9 | 57.9 | 52|  79| 0.00| 29.91| 29.91|29.910| 0.0|  9|  0|ENE|  0| 48|   50 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 56.9 | 53.2 | 54.7 | 50|  84| 0.00| 29.91| 29.90|29.904| 0.0|  9|  0|ENE|  0| 48|    3 |
|21| 53.2 | 51.6 | 52.3 | 48|  87| 0.00| 29.91| 29.90|29.907| 0.0|  9|  0|ENE|  0| 48|    0 |
|22| 53.4 | 51.6 | 52.2 | 48|  87| 0.00| 29.91| 29.90|29.904| 0.3|276|  7|  W|  3|278|    0 |
|23| 54.7 | 53.4 | 54.1 | 49|  83| 0.00| 29.91| 29.90|29.903| 1.5|266| 10|  W|  4|271|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.03| 29.91| 29.78|29.870| 0.7|299| 17|WNW|  7|274| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     56.3    | 55.6 | 50|81.1| 4.60|  18+ |   0  | ---- | -- | - |   10  |   10  | 161.7|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | 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.