LOCAL CLIMATOLOGICAL DATA
Hourly Summary
July 28, 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| 68.1 | 62.5 | 64.7 | 57|  77| 0.00| 29.93| 29.92|29.926| 0.2|218|  4|SSW|  1|208|      |
|01| 62.5 | 62.0 | 62.3 | 57|  84| 0.00| 29.93| 29.92|29.920| 0.4|205|  4|SSW|  2|197|      |
|02| 62.8 | 61.6*| 61.9 | 58|  88| 0.00| 29.94| 29.93|29.937| 0.3|204|  4|SSW|  2|198|      |
|03| 64.5 | 62.8 | 63.9 | 59|  85| 0.00| 29.94| 29.92|29.932| 1.4|216|  8|SSW|  4|219|      |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 64.0 | 63.3 | 63.7 | 59|  84| 0.00| 29.93| 29.92|29.923| 1.7|210|  7|SSW|  4|209|      |
|05| 63.6 | 62.7 | 63.1 | 58|  83| 0.00| 29.92| 29.91|29.913| 1.9|210|  8|  S|  3|212|      |
|06| 64.2 | 62.9 | 63.4 | 57|  81| 0.00| 29.91| 29.90|29.901| 1.2|209|  7|SSW|  3|204|      |
|07| 69.1 | 64.2 | 66.6 | 59|  78| 0.00| 29.90| 29.89|29.894| 2.1|207|  9|SSW|  4|196|      |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 73.3 | 69.1 | 71.5 | 62|  71| 0.00| 29.89| 29.87|29.876| 3.3|208| 13|WSW|  6|214|      |
|09| 75.7 | 73.3 | 74.8 | 63|  66| 0.00| 29.87| 29.84|29.852| 4.2|205| 16|  S|  9|201|      |
|10| 77.7 | 75.7 | 76.8 | 64|  65| 0.00| 29.85| 29.84|29.847| 3.8|210| 14|SSW|  8|202|      |
|11| 79.8 | 77.3 | 78.8 | 65|  63| 0.00| 29.84| 29.83|29.836| 3.7|208| 16|SSW|  7|218|      |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 81.6 | 79.8 | 80.7 | 67|  62| 0.00| 29.83| 29.81|29.817| 5.6|215| 18|SSW| 12|215|      |
|13| 83.4 | 81.3 | 82.6 | 68|  61| 0.00| 29.81| 29.78|29.789| 5.2|222| 19|  W|  9|224|      |
|14| 84.7*| 82.2 | 83.2 | 68|  60| 0.00| 29.78| 29.75|29.761| 5.5|216| 19| SW| 11|221|      |
|15| 83.2 | 81.6 | 82.2 | 67|  60| 0.00| 29.75| 29.73|29.739| 5.6|223| 22|  S| 12|213|      |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 81.6 | 79.0 | 80.0 | 65|  60| 0.00| 29.73| 29.72|29.724| 4.1|233| 16|  W|  8|237|      |
|17| 79.0 | 78.2 | 78.5 | 63|  58| 0.00| 29.72| 29.71|29.718| 4.4|225| 16|  S|  9|205|      |
|18| 78.2 | 77.1 | 77.6 | 62|  59| 0.00| 29.72| 29.70|29.709| 5.5|220| 19| SW| 11|220|      |
|19| 77.2 | 72.2 | 75.9 | 63|  65| 0.02| 29.71| 29.70|29.706| 5.0|219| 17| SW|  9|219|      |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 72.2 | 68.7 | 69.8 | 65|  85| 0.06| 29.72| 29.69|29.705| 4.5|214| 15| SW|  9|220|      |
|21| 68.8 | 68.5 | 68.7 | 65|  90| 0.00| 29.71| 29.69|29.702| 4.1|211| 16| SW|  8|217|      |
|22| 68.8 | 68.5 | 68.6 | 65|  89| 0.00| 29.69| 29.68|29.687| 4.6|211| 15|  S|  8|211|      |
|23| 68.8 | 68.5 | 68.7 | 65|  89| 0.00| 29.69| 29.68|29.684| 4.4|209| 15|  S|  8|220|      |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 0.08| 29.94| 29.68|29.812| 3.4|215| 22|  S| 12|215|      |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     73.1    | 72.0 | 63|73.5| 4.91|   2+ |  23  | ---- | -- | - |   15  |   12  |      |
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat   0|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                0.0 | of Snow, Ice Pellets or Ice     0 |  .........  | Days |  Cool   9|
   +--------------------+-----------------------------------+-------------+------+----------+

  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.