LOCAL CLIMATOLOGICAL DATA
Hourly Summary
February 4, 2012

Station: Westford
Latitude: 44° 37' 39" 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  | Minute| 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 |  m^2 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
| 1|   2  |   3  |   4  | 5 |  6 |  7  |   8  |   9  |  10  | 11 | 12| 13| 14| 15| 16|  17  |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
|00| 26.3 | 25.9 | 26.1 | 22|  86| 0.00| 30.23| 30.21|30.218| 0.0|217|  1|SSW|  0|216|    0 |
|01| 26.7 | 26.2 | 26.4 | 23|  87| 0.00| 30.21| 30.20|30.206| 0.2|217|  3|SSW|  1|216|    0 |
|02| 27.2*| 26.6 | 26.9 | 24|  88| 0.00| 30.22| 30.21|30.214| 1.3|284|  8|  W|  5|286|    0 |
|03| 27.2 | 24.5 | 26.1 | 23|  88| 0.00| 30.23| 30.20|30.214| 3.4|329| 16| NW|  9|300|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 24.5 | 21.2 | 22.4 | 18|  84| 0.00| 30.25| 30.22|30.236| 3.5|345| 15|  N|  6|351|    0 |
|05| 21.2 | 20.0 | 20.6 | 15|  78| 0.00| 30.26| 30.25|30.255| 4.6|338| 18|NNW|  8|339|    0 |
|06| 20.0 | 18.5 | 19.3 | 12|  72| 0.00| 30.28| 30.26|30.272| 4.2|323| 17| NW|  9|317|    0 |
|07| 18.5 | 17.3 | 17.8 | 11|  74| 0.00| 30.29| 30.28|30.285| 4.1|326| 14| NW|  8|316|   11 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 18.1 | 17.3 | 17.6 | 11|  75| 0.00| 30.30| 30.29|30.296| 3.3|319| 15| NW|  9|304|   86 |
|09| 20.0 | 18.1 | 19.1 | 11|  71| 0.00| 30.31| 30.29|30.300| 4.1|325| 13| NW|  8|324|  287 |
|10| 21.8 | 19.5 | 20.6 | 11|  66| 0.00| 30.29| 30.28|30.282| 2.6|324| 11|WNW|  7|311|  396 |
|11| 22.9 | 21.0 | 22.1 | 10|  61| 0.00| 30.28| 30.25|30.269| 1.5|344|  8|NNW|  4|325|  439 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 23.9 | 22.1 | 22.9 | 11|  59| 0.00| 30.25| 30.22|30.242| 1.4|317|  7| NW|  4|299|  457 |
|13| 25.1 | 23.5 | 24.3 | 11|  56| 0.00| 30.22| 30.20|30.213| 1.1|336|  9| NW|  5|318|  411 |
|14| 25.7 | 23.6 | 24.7 | 11|  55| 0.00| 30.20| 30.19|30.196| 1.3|321|  8|NNW|  4|328|  318 |
|15| 25.8 | 24.5 | 25.2 | 11|  54| 0.00| 30.19| 30.19|30.191| 0.7|356|  6|NNW|  3| 23|  177 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 24.5 | 19.3 | 22.4 | 10|  58| 0.00| 30.19| 30.19|30.193| 0.4| 11|  5| NE|  2| 18|   36 |
|17| 19.3 | 16.3 | 17.4 |  9|  68| 0.00| 30.20| 30.19|30.193| 0.5| 34|  6|NNE|  3| 41|    1 |
|18| 16.3 | 14.5 | 15.6 |  8|  72| 0.00| 30.20| 30.19|30.199| 0.6| 48|  6|NNE|  2| 47|    0 |
|19| 14.5 | 12.3 | 13.1 |  7|  77| 0.00| 30.21| 30.20|30.204| 0.0| 59|  3| NE|  0| 59|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 12.3 |  9.1 | 11.2 |  6|  79| 0.00| 30.21| 30.20|30.204| 0.0| 59|  2| NE|  1| 59|    0 |
|21|  9.9 |  8.5 |  9.2 |  5|  81| 0.00| 30.20| 30.19|30.200| 0.0| 59|  0| NE|  0| 59|    0 |
|22|  9.1 |  6.9*|  7.6 |  3|  82| 0.00| 30.20| 30.18|30.186| 0.0| 59|  0| NE|  0| 59|    0 |
|23|  8.6 |  7.3 |  8.1 |  4|  83| 0.00| 30.18| 30.17|30.175| 0.0| 59|  0| NE|  0| 59|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.00| 30.31| 30.17|30.227| 1.6|330| 18|NNW|  9|300| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     17.1    | 19.4 | 12|73.1| 0.31|   9  |  23  | ---- | -- | - |    5  |    3  | 109.1|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat  48|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                1.5 | of Snow, Ice Pellets or Ice     1 |  .........  | Days |  Cool   0|
   +--------------------+-----------------------------------+-------------+------+----------+

  NOTES:
   Data in columns 4, 5, 6, 10, 11, 17 are means via continuous observations for each hour.
   Units are: 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/m^2 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.