LOCAL CLIMATOLOGICAL DATA
Hourly Summary
June 18, 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| 64.4 | 63.5 | 64.0 | 56|  75| 0.00| 29.69| 29.67|29.680| 1.2|176| 10|SSE|  7|172|    0 |
|01| 63.6 | 60.9 | 62.3 | 57|  82| 0.14| 29.67| 29.66|29.664| 0.2|205|  6|SSE|  2|215|    0 |
|02| 60.9 | 59.7 | 60.2 | 57|  89| 0.14| 29.67| 29.66|29.663| 0.0|228|  1| SW|  0|228|    0 |
|03| 59.7 | 59.3 | 59.5 | 57|  91| 0.04| 29.66| 29.63|29.645| 0.1| 80|  3|  E|  1| 53|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 59.4 | 58.9*| 59.1 | 57|  93| 0.02| 29.63| 29.61|29.620| 0.2| 53|  3| NE|  2| 59|    0 |
|05| 59.3 | 59.0 | 59.2 | 57|  93| 0.04| 29.61| 29.58|29.594| 0.3| 53|  4| NE|  2| 47|    1 |
|06| 59.3 | 59.2 | 59.2 | 57|  94| 0.08| 29.58| 29.53|29.556| 0.2| 56|  5|NNE|  2| 54|    9 |
|07| 59.5 | 59.1 | 59.3 | 58|  94| 0.10| 29.53| 29.49|29.510| 0.4| 65|  5|ESE|  2| 95|   19 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 60.2 | 59.4 | 59.6 | 58|  94| 0.10| 29.49| 29.42|29.456| 0.6|105|  8|  E|  3|104|   25 |
|09| 62.6 | 60.1 | 61.4 | 60|  94| 0.01| 29.43| 29.38|29.399| 1.9|157| 13| SE|  4|157|  137 |
|10| 63.2 | 62.5 | 62.9 | 61|  92| 0.00| 29.38| 29.35|29.362| 2.3|156| 19|SSE|  5|179|  140 |
|11| 63.2 | 62.5 | 62.8 | 61|  92| 0.06| 29.36| 29.32|29.340| 2.3|148| 19|SSE|  5|142|  128 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 63.3 | 62.7 | 62.8 | 61|  92| 0.16| 29.32| 29.30|29.312| 0.7|173| 10|SSE|  2|177|   48 |
|13| 64.4 | 63.3 | 63.8 | 62|  94| 0.42| 29.30| 29.24|29.279| 1.2|180| 10|WSW|  5|234|   72 |
|14| 65.2 | 64.4 | 64.7 | 63|  94| 0.01| 29.26| 29.24|29.250| 0.8|174|  9|SSE|  3|190|  121 |
|15| 65.6 | 64.8 | 65.0 | 63|  94| 0.00| 29.26| 29.25|29.255| 1.7|184| 12|SSE|  5|182|  183 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 66.3 | 64.2 | 65.1 | 63|  92| 0.04| 29.28| 29.26|29.269| 1.6|188| 15|  S|  4|170|  136 |
|17| 67.2 | 64.3 | 65.7 | 62|  89| 0.00| 29.28| 29.27|29.273| 3.6|197| 16| SE|  7|185|  247 |
|18| 67.6*| 65.5 | 66.5 | 61|  82| 0.00| 29.30| 29.27|29.285| 3.4|200| 17|SSE|  6|203|   89 |
|19| 66.0 | 65.4 | 65.6 | 60|  81| 0.00| 29.32| 29.30|29.311| 2.4|209| 14| SW|  5|212|   11 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 66.7 | 65.5 | 66.0 | 59|  78| 0.00| 29.32| 29.31|29.317| 2.4|194| 14|  E|  6|198|    4 |
|21| 66.0 | 65.4 | 65.6 | 58|  76| 0.00| 29.34| 29.32|29.330| 2.4|204| 17|  S|  6|209|    0 |
|22| 65.6 | 64.7 | 65.3 | 58|  76| 0.00| 29.35| 29.33|29.344| 4.0|227| 18|WSW| 10|239|    0 |
|23| 64.8 | 64.1 | 64.4 | 57|  77| 0.00| 29.37| 29.35|29.357| 4.6|224| 19|WNW| 10|242|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 1.36| 29.69| 29.24|29.420| 1.6|192| 19|SSE| 10|242| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     63.3    | 62.9 | 59|87.9| 4.37|   0  |  14  | ---- | -- | - |   10+ |   23  |  57.1|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat   1|
   | 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.