Weather History for Groton, CT

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Wednesday, December 19, 2012

  Actual Average Record
Temperature  
Mean Temperature 44 °F -  
Max Temperature 48 °F 38 °F 56 °F (1990)
Min Temperature 41 °F 22 °F 7 °F (1960)
Degree Days  
Heating Degree Days 20    
Moisture  
Dew Point 31 °F    
Average Humidity 61    
Maximum Humidity 76    
Minimum Humidity 48    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.62 in    
Wind  
Wind Speed 16 mph (NW)    
Max Wind Speed 24 mph    
Max Gust Speed 33 mph    
Visibility 10 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 19, 2012 Rise Set
Actual Time 7:09 AM EST 4:21 PM EST
Civil Twilight 6:38 AM EST 4:52 PM EST
Nautical Twilight 6:03 AM EST 5:27 PM EST
Astronomical Twilight 5:29 AM EST 6:01 PM EST
Moon 11:13 AM EST (12/19) 11:50 PM EST (12/19)
Length of Visible Light 10h 14m
Length of Day
9h 11m
Waxing Crescent, 45% of the Moon is Illuminated
Dec 19
Waxing Crescent
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:11 AM 46.4 °F 40.1 °F 37.4 °F 71% 29.51 in 10.0 mi WNW 15.0 mph - N/A   Overcast
12:56 AM 44.1 °F 36.2 °F 35.1 °F 71% 29.51 in 10.0 mi NW 18.4 mph 27.6 mph N/A   Mostly Cloudy
1:56 AM 43.0 °F 36.4 °F 34.0 °F 71% 29.53 in 10.0 mi WNW 12.7 mph 21.9 mph N/A   Clear
2:56 AM 42.1 °F 35.7 °F 35.1 °F 76% 29.55 in 10.0 mi West 11.5 mph - N/A   Clear
3:56 AM 42.1 °F 35.2 °F 34.0 °F 73% 29.55 in 10.0 mi WNW 12.7 mph 19.6 mph N/A   Scattered Clouds
4:56 AM 42.1 °F 34.9 °F 32.0 °F 67% 29.57 in 10.0 mi NW 13.8 mph 21.9 mph N/A   Clear
5:56 AM 42.1 °F 34.9 °F 30.0 °F 62% 29.58 in 10.0 mi WNW 13.8 mph 23.0 mph N/A   Clear
6:56 AM 41.0 °F 32.8 °F 30.0 °F 65% 29.60 in 10.0 mi NW 16.1 mph 20.7 mph N/A   Mostly Cloudy
7:56 AM 42.1 °F 34.9 °F 30.0 °F 62% 29.62 in 10.0 mi WNW 13.8 mph 23.0 mph N/A   Clear
8:56 AM 43.0 °F 35.7 °F 30.0 °F 60% 29.64 in 10.0 mi NW 15.0 mph 20.7 mph N/A   Scattered Clouds
9:56 AM 46.0 °F 38.8 °F 28.9 °F 51% 29.65 in 10.0 mi NW 18.4 mph 26.5 mph N/A   Mostly Cloudy
10:56 AM 46.9 °F - 28.0 °F 48% 29.65 in 10.0 mi WNW 23.0 mph 31.1 mph N/A   Scattered Clouds
11:56 AM 48.0 °F - 28.9 °F 48% 29.67 in 10.0 mi NW 19.6 mph 27.6 mph N/A   Partly Cloudy
12:56 PM 46.9 °F - 28.9 °F 50% 29.69 in 10.0 mi NW 24.2 mph 33.4 mph N/A   Scattered Clouds
1:56 PM 46.9 °F - 28.9 °F 50% 29.72 in 10.0 mi NNW 19.6 mph 29.9 mph N/A   Scattered Clouds
2:56 PM 46.9 °F - 30.0 °F 52% 29.74 in - North - - N/A   Unknown
3:56 PM 45.0 °F 37.9 °F - N/A% 29.77 in - NNW 16.1 mph - N/A   Unknown