LOCAL CLIMATOLOGICAL DATA
Hourly Summary
May 13, 2021

Station: Westford
Latitude: 44° 37' 38" N
Longitude: 73° 02' 29" 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| 45.7 | 44.4 | 44.9 | 36|  70| 0.00| 30.13| 30.12|30.127| 1.6|192|  6|  S|  3|192|    0 |
|01| 46.7 | 45.5 | 46.0 | 36|  68| 0.00| 30.13| 30.13|30.130| 0.3|183|  5|  S|  3|183|    0 |
|02| 46.0 | 44.4 | 45.5 | 35|  66| 0.00| 30.13| 30.13|30.129| 0.3|180|  4|  S|  2|177|    0 |
|03| 44.4 | 41.6 | 43.0 | 36|  75| 0.00| 30.13| 30.13|30.130| 0.1|176|  3|  S|  1|176|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 41.6 | 38.4 | 39.7 | 34|  80| 0.00| 30.14| 30.13|30.134| 0.0|176|  0|  S|  0|176|    0 |
|05| 39.3 | 36.2*| 37.3 | 33|  85| 0.00| 30.15| 30.13|30.142| 0.0|177|  0|  S|  0|176|    6 |
|06| 40.0 | 36.4 | 37.9 | 34|  86| 0.00| 30.16| 30.15|30.156| 0.0|177|  0|  S|  0|176|   26 |
|07| 52.5 | 40.0 | 46.5 | 36|  68| 0.00| 30.17| 30.16|30.169| 0.0|177|  0|  S|  0|176|  191 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 55.8 | 52.5 | 54.4 | 34|  46| 0.00| 30.18| 30.17|30.179| 0.9|259|  7|  W|  3|277|  443 |
|09| 57.6 | 55.3 | 56.3 | 35|  44| 0.00| 30.18| 30.18|30.182| 2.0|265|  8|WSW|  6|262|  616 |
|10| 60.3 | 57.6 | 58.6 | 36|  43| 0.00| 30.19| 30.18|30.183| 4.2|250| 14| SW|  8|246|  762 |
|11| 63.3 | 60.3 | 61.7 | 35|  36| 0.00| 30.18| 30.17|30.177| 4.4|280| 14| NW|  8|268|  865 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 64.0 | 62.3 | 63.1 | 34|  33| 0.00| 30.18| 30.16|30.168| 4.5|294| 16|  N| 10|266|  915 |
|13| 65.0 | 63.7 | 64.2 | 36|  35| 0.00| 30.16| 30.15|30.155| 4.6|298| 17|  W|  9|290|  910 |
|14| 66.5 | 64.3 | 65.4 | 37|  35| 0.00| 30.15| 30.13|30.142| 5.3|286| 20|  W| 10|278|  854 |
|15| 67.7 | 65.8 | 66.8 | 37|  33| 0.00| 30.13| 30.11|30.119| 3.8|299| 13|  N|  8|276|  752 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 68.2 | 66.9 | 67.4 | 36|  32| 0.00| 30.11| 30.09|30.101| 3.6|286| 13|  W|  7|267|  601 |
|17| 68.5*| 66.5 | 67.5 | 36|  31| 0.00| 30.10| 30.09|30.091| 2.3|301| 13|  W|  8|268|  322 |
|18| 67.2 | 65.5 | 66.4 | 35|  31| 0.00| 30.09| 30.08|30.085| 2.8|268| 10|  W|  7|259|  225 |
|19| 65.7 | 58.7 | 62.6 | 37|  39| 0.00| 30.09| 30.08|30.087| 0.4|250|  6|  W|  4|281|   38 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 58.7 | 53.4 | 55.2 | 38|  52| 0.00| 30.10| 30.09|30.093| 0.0|236|  0|  W|  0|281|    1 |
|21| 53.4 | 51.6 | 52.5 | 37|  56| 0.00| 30.11| 30.10|30.102| 0.0|235|  0|  W|  0|281|    0 |
|22| 52.5 | 50.6 | 51.5 | 37|  58| 0.00| 30.11| 30.11|30.110| 0.0|235|  0|  W|  0|281|    0 |
|23| 52.7 | 51.0 | 52.0 | 38|  59| 0.00| 30.12| 30.11|30.110| 0.0|320|  8|NNW|  1|336|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 30.19| 30.08|30.133| 1.7|279| 20|  W| 10|278| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     52.3    | 54.4 | 36|52.6| 1.54|  10  |  18  | ---- | -- | - |   14  |   14  | 313.7|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat  12|
   | 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.
   Column 17: Solar Radiation is measured in Watts/m² and is continuously averaged for each hour.
   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.
   Data in columns 4B, 5, 6, 10, 11, 17 are updated continuously, there by achieving a
       "true" mean.