LOCAL CLIMATOLOGICAL DATA
Hourly Summary
June 21, 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| 56.8 | 56.2 | 56.5 | 55|  95| 0.00| 29.73| 29.72|29.724| 0.0|250|  1|WSW|  0|252|    0 |
|01| 57.3 | 56.8 | 57.0 | 56|  95| 0.00| 29.73| 29.72|29.724| 0.0|247|  3|WSW|  0|247|    0 |
|02| 57.4 | 57.1 | 57.2 | 56|  95| 0.02| 29.73| 29.72|29.726| 0.2|230|  6|SSW|  2|219|    0 |
|03| 57.4 | 57.0 | 57.2 | 56|  95| 0.01| 29.73| 29.72|29.726| 0.2|221|  5| SW|  1|217|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 57.0 | 56.8 | 56.9 | 55|  95| 0.00| 29.74| 29.73|29.730| 0.2|193|  4|  S|  1|185|    0 |
|05| 56.8 | 56.3 | 56.4 | 55|  95| 0.00| 29.75| 29.73|29.742| 0.0|202|  1|SSW|  0|202|   14 |
|06| 57.8 | 56.6 | 57.3 | 56|  95| 0.00| 29.77| 29.75|29.759| 0.2|200|  4|SSW|  1|197|   50 |
|07| 60.5 | 57.7 | 58.8 | 58|  96| 0.00| 29.78| 29.76|29.769| 0.1|196|  5|  S|  2|188|  176 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 60.7 | 59.6 | 60.1 | 58|  94| 0.00| 29.79| 29.78|29.783| 1.7|226|  9|SSE|  4|240|  162 |
|09| 63.7 | 60.3 | 61.5 | 59|  91| 0.00| 29.80| 29.79|29.794| 2.2|251| 10|WSW|  5|256|  292 |
|10| 65.7 | 63.4 | 64.3 | 60|  87| 0.00| 29.80| 29.79|29.795| 2.5|242| 10|  W|  6|276|  408 |
|11| 69.2 | 65.7 | 67.9 | 62|  82| 0.00| 29.80| 29.79|29.798| 2.7|250| 11|WSW|  6|265|  757 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 70.7 | 68.9 | 69.7 | 63|  78| 0.00| 29.80| 29.79|29.797| 2.3|245| 10| SW|  5|261|  826 |
|13| 72.3 | 70.3 | 71.0 | 63|  76| 0.00| 29.79| 29.78|29.786| 1.7|251| 13|WNW|  6|271|  687 |
|14| 74.7 | 72.3 | 73.7 | 65|  73| 0.00| 29.78| 29.77|29.779| 2.4|256| 12| SW|  7|261|  833 |
|15| 74.8 | 72.0 | 73.3 | 64|  72| 0.00| 29.80| 29.78|29.790| 3.0|254| 15| SW|  7|250|  554 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 75.4*| 71.6 | 73.8 | 64|  72| 0.00| 29.81| 29.79|29.796| 3.3|256| 13|  W|  7|268|  602 |
|17| 73.7 | 68.2 | 70.4 | 62|  75| 0.00| 29.82| 29.80|29.806| 1.8|256| 10|  W|  5|277|  340 |
|18| 68.5 | 66.0 | 67.6 | 61|  80| 0.00| 29.85| 29.82|29.833| 0.0|236|  0|  W|  0|277|   92 |
|19| 66.0 | 63.1 | 64.8 | 60|  84| 0.00| 29.88| 29.85|29.864| 0.0|236|  0|  W|  0|277|   29 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 63.1 | 58.4 | 60.5 | 57|  88| 0.36| 29.90| 29.87|29.880| 0.4|253| 13| SW|  6|250|   15 |
|21| 58.6 | 56.3 | 57.5 | 55|  91| 0.00| 29.91| 29.88|29.896| 0.0|265|  0| SW|  0|250|    0 |
|22| 56.4 | 56.0 | 56.2 | 54|  92| 0.00| 29.91| 29.90|29.906| 0.0|262|  2|  W|  0|262|    0 |
|23| 56.3 | 55.4*| 55.8 | 54|  94| 0.00| 29.92| 29.90|29.911| 0.0|261|  0|  W|  0|262|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.39| 29.92| 29.72|29.796| 1.0|248| 15| SW|  7|250| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     65.4    | 62.7 | 59|87.1| 6.05|  23  |   0+ | ---- | -- | - |   15  |   15  | 243.2|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat   0|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                0.0 | of Snow, Ice Pellets or Ice     0 |  ..3......  | 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.