LOCAL CLIMATOLOGICAL DATA
Hourly Summary
March 15, 2010

Station: Westford
Latitude: 44° 37' 39" N
Longitude: 73° 02' 29" W
Elevation (ground): 850 ft.
Time Zone: Eastern

+--+------------------------+----+-----+--------------------+------------------------+------+
|  |       Temperature      |    | Pre-|      Pressure      |           Wind         |  Sun |
|  +------+------+------+---+ Hu-|cipi-|  Adj. to Sea Level +----+---+-------+-------+------+
|  |   M  |   M  |      |   |mid-| ta- +------+------+------+ Avg|Res| Peak  | Minute| Mean |
|  |   a  |   i  |      | D | ity| tion|      |      |      |    |   +---+---+---+---+      |
|  |   x  |   n  |      | e |    |     |      |      |      |  S |   | S |   | S |   |   I  |
| H|   i  |   i  |   M  | w |  M |     |      |      |   M  |  p |   | p |   | p |   |   n  |
| o|   m  |   m  |   e  |   |  e |Water|   M  |   M  |   e  |  e | D | e | D | e | D |   d  |
| u|   u  |   u  |   a  | P |  a |     |   a  |   i  |   a  |  e | i | e | i | e | i |   e  |
| r|   m  |   m  |   n  | t |  n |Equiv|   x  |   n  |   n  |  d | r | d | r | d | r |   x  |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
| 1|   2  |   3  |   4  | 5 |  6 |  7  |   8  |   9  |  10  | 11 | 12| 13| 14| 15| 16|  17  |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
|00| 36.2 | 34.6 | 35.3 | 33|  90| 0.01| 29.85| 29.84|29.844| 0.3| 22|  5|NNE|  3| 27|      |
|01| 34.6 | 34.4 | 34.4 | 32|  91| 0.00| 29.84| 29.83|29.834| 0.1|358|  3|NNW|  1|342|      |
|02| 34.5 | 34.4 | 34.4 | 32|  91| 0.00| 29.83| 29.82|29.829| 0.1| 12|  3|  N|  1| 12|      |
|03| 34.4 | 33.7 | 34.0 | 32|  91| 0.01| 29.82| 29.81|29.817| 0.1| 14|  3|  N|  1| 14|      |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 34.4 | 34.2 | 34.3 | 32|  92| 0.00| 29.82| 29.81|29.815| 0.0| 14|  1|  N|  0| 14|      |
|05| 35.8 | 34.2 | 34.8 | 33|  91| 0.00| 29.83| 29.82|29.822| 0.3| 29|  6|NNE|  2| 23|      |
|06| 35.6 | 34.2 | 34.9 | 32|  88| 0.01| 29.84| 29.83|29.831| 0.2|345|  3|  N|  2|327|      |
|07| 34.2 | 33.6*| 33.8 | 30|  84| 0.00| 29.85| 29.84|29.845| 0.2|313|  5|WNW|  2|313|      |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 34.7 | 33.6 | 34.2 | 29|  81| 0.00| 29.86| 29.85|29.854| 0.9|297|  7|  W|  4|275|      |
|09| 38.2 | 34.7 | 36.6 | 29|  75| 0.00| 29.88| 29.86|29.870| 1.4|306|  8|WNW|  6|291|      |
|10| 38.5 | 37.3 | 37.8 | 29|  70| 0.00| 29.88| 29.87|29.878| 1.6|307|  7|  W|  5|289|      |
|11| 43.0 | 38.5 | 40.9 | 28|  60| 0.00| 29.89| 29.88|29.884| 2.0|339|  9| NW|  6|320|      |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 45.1 | 42.9 | 44.3 | 28|  51| 0.00| 29.90| 29.89|29.893| 1.6|351|  8|  N|  4|348|      |
|13| 48.9 | 44.7 | 46.4 | 25|  44| 0.00| 29.90| 29.89|29.893| 2.5|  9| 15|NNW|  6| 13|      |
|14| 50.9 | 47.6 | 49.4 | 22|  33| 0.00| 29.89| 29.88|29.887| 3.0| 17| 14|ENE|  5|  8|      |
|15| 54.2*| 49.5 | 52.1 | 22|  31| 0.00| 29.89| 29.88|29.888| 3.6| 16| 17|  N|  8| 43|      |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 54.2 | 50.9 | 53.1 | 20|  27| 0.00| 29.90| 29.89|29.894| 4.6| 27| 17|NNE|  9| 22|      |
|17| 50.9 | 45.1 | 48.1 | 21|  34| 0.00| 29.92| 29.90|29.913| 2.3| 19| 15|  N|  7| 16|      |
|18| 45.1 | 42.7 | 43.8 | 23|  43| 0.00| 29.94| 29.92|29.933| 0.6| 21|  7|  N|  2| 21|      |
|19| 42.7 | 40.8 | 41.8 | 22|  44| 0.00| 29.96| 29.94|29.951| 0.4| 26|  7|  N|  2| 20|      |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 40.8 | 38.8 | 39.6 | 22|  50| 0.00| 29.98| 29.96|29.973| 0.1| 12|  7|NNE|  1| 36|      |
|21| 39.8 | 37.9 | 39.1 | 23|  51| 0.00| 29.98| 29.98|29.979| 0.1| 60|  2|ENE|  1| 59|      |
|22| 37.9 | 35.6 | 36.9 | 21|  53| 0.00| 29.99| 29.98|29.984| 0.1| 54|  2| NE|  1| 59|      |
|23| 37.1 | 35.9 | 36.5 | 21|  53| 0.00| 29.99| 29.98|29.982| 0.0| 53|  1| NE|  0| 52|      |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.03| 29.99| 29.81|29.887| 1.1|  4| 17|  N|  9| 22|      |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     43.9    | 39.9 | 27|63.3| 0.23|  22  |   3+ | ---- | -- | - |   15+ |   16  |      |
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat  21|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                0.0 | 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: Sunshine index 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.