LOCAL CLIMATOLOGICAL DATA
Hourly Summary
May 22, 2013

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| 57.2 | 56.8 | 57.0 | 56|  95| 0.28| 29.82| 29.75|29.774| 1.8|243| 14|WNW|  7|306|    0 |
|01| 57.2 | 56.4 | 56.8 | 56|  96| 0.11| 29.77| 29.74|29.754| 3.4|202| 17|SSE|  6|198|    0 |
|02| 56.6 | 56.4 | 56.5 | 55|  95| 0.15| 29.76| 29.74|29.743| 3.6|207| 14| SW|  6|206|    0 |
|03| 56.5 | 55.9 | 56.2 | 55|  96| 0.03| 29.75| 29.74|29.741| 2.1|203| 13|  S|  6|206|    0 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|04| 55.9 | 55.7*| 55.8 | 54|  95| 0.00| 29.75| 29.74|29.746| 0.7|208|  8| SW|  4|207|    0 |
|05| 57.2 | 55.9 | 56.6 | 55|  96| 0.00| 29.76| 29.75|29.754| 2.6|207|  9|SSW|  5|211|    6 |
|06| 58.6 | 57.2 | 57.9 | 57|  96| 0.00| 29.79| 29.76|29.775| 0.9|207|  7|SSW|  4|206|   26 |
|07| 60.3 | 58.6 | 59.3 | 58|  96| 0.00| 29.79| 29.78|29.788| 0.7|210|  6| SW|  3|221|   73 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|08| 62.0 | 60.3 | 61.1 | 60|  96| 0.00| 29.80| 29.79|29.797| 1.1|225|  6| SW|  4|214|  127 |
|09| 65.3 | 61.9 | 63.3 | 62|  96| 0.00| 29.80| 29.78|29.793| 0.9|220|  6| SW|  4|227|  237 |
|10| 68.3 | 65.3 | 67.4 | 64|  88| 0.00| 29.80| 29.78|29.792| 1.1|224|  7|SSW|  4|220|  346 |
|11| 71.1 | 68.0 | 69.6 | 64|  83| 0.00| 29.80| 29.78|29.795| 2.0|223| 12| SW|  6|217|  425 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|12| 73.3 | 70.5 | 72.3 | 65|  78| 0.00| 29.79| 29.77|29.780| 3.2|223| 14|SSW|  7|209|  598 |
|13| 77.4 | 73.2 | 75.3 | 66|  74| 0.00| 29.77| 29.74|29.753| 2.2|230| 12|  W|  7|230|  800 |
|14| 78.2*| 73.2 | 76.0 | 66|  72| 0.00| 29.74| 29.73|29.736| 2.7|227| 12|SSW|  7|221|  445 |
|15| 73.2 | 69.6 | 71.0 | 66|  84| 0.05| 29.74| 29.72|29.730| 1.4|210|  8|SSW|  5|215|  128 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|16| 70.6 | 68.8 | 69.8 | 66|  89| 0.00| 29.73| 29.72|29.727| 1.5|210|  9| SE|  5|220|  134 |
|17| 68.8 | 64.3 | 67.0 | 63|  88| 1.12| 29.75| 29.70|29.725| 1.0|273| 16|WNW|  6|295|    9 |
|18| 65.3 | 64.2 | 64.7 | 62|  92| 0.23| 29.73| 29.71|29.719| 0.8|176| 11| SE|  3|168|   59 |
|19| 64.9 | 64.2 | 64.6 | 63|  93| 0.00| 29.73| 29.71|29.719| 0.2|197|  7|SSW|  3|202|   27 |
|  |      |      |      |   |    |     |      |      |      |    |   |   |   |   |   |      |
|20| 64.4 | 63.1 | 63.9 | 62|  94| 0.00| 29.73| 29.72|29.724| 0.0| 43|  4| NE|  1| 38|    6 |
|21| 63.4 | 62.0 | 62.6 | 61|  95| 0.00| 29.72| 29.70|29.710| 0.1|196|  5| SE|  1|215|    0 |
|22| 65.0 | 63.4 | 64.4 | 63|  96| 0.00| 29.70| 29.67|29.683| 0.6|202|  9| SW|  4|200|    0 |
|23| 65.6 | 64.8 | 65.4 | 64|  94| 0.00| 29.68| 29.66|29.672| 0.3|221|  9|  S|  2|243|    0 |
+--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- |Total|                For the day:                 | ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   | ---- | ---- | ---- | - | -- | 1.97| 29.82| 29.66|29.747| 1.5|216| 17|SSE|  7|306| ---- |
   +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+
   |     Avg     | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - |  Hour |  Hour |  Avg |
   +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+
   |     66.9    | 63.9 | 61|90.8| 3.59|   0  |  23  | ---- | -- | - |    1  |    0  | 143.6|
   +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+
   | Total Snow,        |                                   |             |      |  Heat   0|
   | Ice Pellets        | Greatest Depth on Ground          | Precip Types|Degree+----------+
   |                0.0 | of Snow, Ice Pellets or Ice     0 |  ..3......  | Days |  Cool   2|
   +--------------------+-----------------------------------+-------------+------+----------+

  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.