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  Wednesday December 13, 2017

Westford: December 12, 2017
LOCAL CLIMATOLOGICAL DATA Hourly Summary
December 12, 2017
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 |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 | m^2 | | | | | | | | | | | | | | | | | | | | 1| 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12| 13| 14| 15| 16| 17 | +--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ |00| 13.6 | 13.0 | 13.3 | 10| 85| 0.00| 29.93| 29.90|29.913| 0.0| 72| 1|ENE| 0| 72| 0 | |01| 14.4 | 13.6 | 13.9 | 10| 84| 0.00| 29.90| 29.87|29.886| 0.0|110| 0|ENE| 0| 72| 0 | |02| 14.6 | 12.9*| 13.7 | 10| 87| 0.00| 29.87| 29.83|29.852| 0.0| 71| 0|ENE| 0| 72| 0 | |03| 15.4 | 14.2 | 14.6 | 12| 88| 0.00| 29.83| 29.79|29.808| 0.0| 71| 0|ENE| 0| 72| 0 | | | | | | | | | | | | | | | | | | | |04| 20.1 | 15.4 | 17.5 | 15| 90| 0.00| 29.79| 29.74|29.765| 0.0|178| 5| S| 1|195| 0 | |05| 24.4 | 20.1 | 23.2 | 20| 86| 0.00| 29.74| 29.71|29.724| 2.3|191| 12|SSW| 5|189| 0 | |06| 25.6 | 24.4 | 25.0 | 21| 86| 0.00| 29.71| 29.67|29.689| 2.9|183| 16| S| 7|166| 0 | |07| 25.7 | 25.4 | 25.5 | 23| 89| 0.00| 29.67| 29.63|29.654| 4.2|176| 18|SSE| 8|178| 1 | | | | | | | | | | | | | | | | | | | |08| 26.6 | 25.6 | 26.1 | 24| 91| 0.00| 29.64| 29.61|29.624| 4.2|187| 14| S| 7|166| 8 | |09| 28.2 | 26.6 | 27.3 | 25| 90| 0.00| 29.62| 29.59|29.605| 3.4|183| 13|SSW| 7|172| 25 | |10| 29.4 | 28.2 | 28.6 | 26| 89| 0.00| 29.59| 29.54|29.565| 4.0|182| 14|SSW| 7|182| 30 | |11| 29.9 | 29.2 | 29.5 | 26| 88| 0.00| 29.54| 29.49|29.514| 4.0|188| 18| S| 8|190| 29 | | | | | | | | | | | | | | | | | | | |12| 31.0 | 29.4 | 30.3 | 27| 87| 0.00| 29.49| 29.45|29.470| 3.5|190| 16| S| 8|190| 30 | |13| 31.1*| 30.7 | 30.9 | 27| 87| 0.00| 29.45| 29.43|29.441| 1.5|205| 10| SW| 5|210| 16 | |14| 31.1 | 30.8 | 31.0 | 28| 87| 0.00| 29.43| 29.41|29.423| 2.7|196| 11|SSW| 7|193| 11 | |15| 31.0 | 30.7 | 30.8 | 28| 90| 0.00| 29.42| 29.39|29.405| 0.5|184| 9|SSE| 5|165| 3 | | | | | | | | | | | | | | | | | | | |16| 30.7 | 30.4 | 30.6 | 29| 93| 0.00| 29.40| 29.38|29.387| 0.0|198| 0|SSE| 0|165| 0 | |17| 30.6 | 30.2 | 30.4 | 29| 94| 0.00| 29.38| 29.37|29.376| 0.0|198| 0|SSE| 0|165| 0 | |18| 30.6 | 30.2 | 30.5 | 29| 94| 0.00| 29.37| 29.36|29.363| 0.0|198| 0|SSE| 0|165| 0 | |19| 30.8 | 22.9 | 28.9 | 27| 94| 0.00| 29.37| 29.35|29.358| 1.9|318| 22|WNW| 9|314| 0 | | | | | | | | | | | | | | | | | | | |20| 22.9 | 20.7 | 21.4 | 20| 93| 0.00| 29.39| 29.37|29.381| 2.4|321| 18|WNW| 7|328| 0 | |21| 20.8 | 19.4 | 20.1 | 18| 92| 0.00| 29.39| 29.38|29.390| 0.0| 36| 0|WNW| 0|328| 0 | |22| 19.4 | 18.2 | 18.7 | 17| 92| 0.00| 29.39| 29.37|29.381| 0.0| 27| 0|WNW| 0|328| 0 | |23| 18.2 | 17.8 | 18.0 | 16| 92| 0.00| 29.39| 29.35|29.374| 0.0| 86| 0|WNW| 0|328| 0 | +--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ | ---- | ---- | ---- | - | -- |Total| For the day: | ---- | +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ | ---- | ---- | ---- | - | -- | 0.00| 29.93| 29.35|29.556| 1.6|192| 22|WNW| 9|314| ---- | +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ | Avg | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - | Hour | Hour | Avg | +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+ | 22.0 | 24.1 | 22|89.5| 0.50| 0 | 23 | ---- | -- | - | 19 | 19 | 6.4| +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+ | Total Snow, | | | | Heat 43| | Ice Pellets | Greatest Depth on Ground | Precip Types|Degree+----------+ | 3.0 | of Snow, Ice Pellets or Ice 5 | ......... | 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/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.
 
 
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