Weather History for Groton, CT

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Monday, January 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 26 °F -  
Max Temperature 30 °F 36 °F 55 °F (2006)
Min Temperature 21 °F 17 °F -7 °F (1961)
Degree Days  
Heating Degree Days 40    
Moisture  
Dew Point 20 °F    
Average Humidity 77    
Maximum Humidity 100    
Minimum Humidity 41    
Precipitation  
Precipitation 0.01 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.94 in    
Wind  
Wind Speed 7 mph (NW)    
Max Wind Speed 16 mph    
Max Gust Speed 21 mph    
Visibility 6 miles    
Events Snow    
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

Jan. 21, 2013 Rise Set
Actual Time 7:08 AM EST 4:51 PM EST
Civil Twilight 6:38 AM EST 5:21 PM EST
Nautical Twilight 6:04 AM EST 5:54 PM EST
Astronomical Twilight 5:31 AM EST 6:27 PM EST
Moon 12:28 PM EST (1/21) 2:34 AM EST (1/21)
Length of Visible Light 10h 42m
Length of Day
9h 42m
Waxing Gibbous, 75% of the Moon is Illuminated
Jan 21
Waxing Gibbous
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New
Feb 17
First Quarter

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 30.0 °F 18.7 °F 9.0 °F 41% 29.99 in 10.0 mi NW 16.1 mph 20.7 mph N/A   Clear
1:56 AM 28.0 °F 18.6 °F 8.1 °F 43% 30.02 in 10.0 mi WNW 10.4 mph - N/A   Clear
2:56 AM 28.0 °F 21.7 °F 7.0 °F 41% 30.04 in 10.0 mi NW 5.8 mph - N/A   Clear
3:56 AM 24.1 °F 18.2 °F 7.0 °F 48% 30.05 in 10.0 mi NNW 4.6 mph - N/A   Clear
4:56 AM 25.0 °F 19.3 °F 8.1 °F 49% 30.06 in 10.0 mi NNW 4.6 mph - N/A   Clear
5:56 AM 21.9 °F 14.5 °F 8.1 °F 55% 30.07 in 10.0 mi NNW 5.8 mph - N/A   Clear
6:56 AM 21.9 °F 15.7 °F 9.0 °F 58% 30.09 in 10.0 mi North 4.6 mph - N/A   Clear
7:56 AM 23.0 °F 18.4 °F 10.9 °F 60% 30.11 in 9.0 mi North 3.5 mph - N/A   Clear
8:56 AM 25.0 °F 19.3 °F 10.0 °F 53% 30.10 in 10.0 mi NNE 4.6 mph - N/A   Scattered Clouds
9:56 AM 27.0 °F 23.0 °F 9.0 °F 47% 30.12 in 10.0 mi Variable 3.5 mph - N/A   Overcast
10:56 AM 28.0 °F 24.2 °F 9.0 °F 45% 30.09 in 10.0 mi Variable 3.5 mph - N/A   Overcast
11:56 AM 28.9 °F 23.9 °F 10.0 °F 45% 30.05 in 10.0 mi Variable 4.6 mph - N/A   Clear
12:56 PM 28.9 °F 23.9 °F 10.0 °F 45% 30.01 in 10.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
1:56 PM 28.9 °F 23.9 °F 14.0 °F 54% 29.99 in 10.0 mi South 4.6 mph - N/A   Overcast
2:56 PM 28.9 °F 22.8 °F 17.1 °F 61% 29.97 in 10.0 mi SE 5.8 mph - N/A   Overcast
3:56 PM 30.9 °F 21.7 °F 19.0 °F 61% 29.94 in 7.0 mi South 11.5 mph - N/A   Overcast
4:43 PM 30.2 °F 22.6 °F 24.8 °F 80% 29.92 in 2.0 mi SSW 8.1 mph - 0.00 in Snow Light Snow
4:56 PM 30.0 °F 22.4 °F 27.0 °F 88% 29.91 in 2.0 mi South 8.1 mph - 0.00 in Snow Light Snow
5:43 PM 30.2 °F 26.7 °F 30.2 °F 100% 29.91 in 1.5 mi SSW 3.5 mph - 0.00 in Snow Light Snow
5:56 PM 30.0 °F - 30.0 °F 100% 29.91 in 1.0 mi Calm Calm - 0.01 in Snow Light Snow
6:56 PM 30.0 °F 26.5 °F 30.0 °F 100% 29.89 in 1.0 mi NNE 3.5 mph - 0.00 in Snow Light Snow
7:53 PM 30.2 °F 24.3 °F 30.2 °F 100% 29.88 in 2.0 mi West 5.8 mph - 0.00 in Snow Light Snow
7:56 PM 30.9 °F 25.2 °F 30.9 °F 100% 29.88 in 2.0 mi West 5.8 mph - 0.00 in Snow Light Snow
7:58 PM 30.2 °F 24.3 °F 30.2 °F 100% 29.88 in 1.8 mi NW 5.8 mph - 0.00 in Snow Light Snow
8:36 PM 28.4 °F 23.3 °F 28.4 °F 100% 29.87 in 2.5 mi North 4.6 mph - 0.00 in Snow Light Snow
8:42 PM 28.4 °F 23.3 °F 28.4 °F 100% 29.87 in 3.0 mi NNW 4.6 mph - 0.00 in Snow Light Snow
8:56 PM 28.9 °F 21.9 °F 28.9 °F 100% 29.87 in 3.0 mi North 6.9 mph - 0.00 in Snow Light Snow
9:04 PM 28.4 °F 21.2 °F 28.4 °F 100% 29.86 in 1.8 mi North 6.9 mph - 0.00 in Snow Light Snow
9:36 PM 28.4 °F 22.2 °F 28.4 °F 100% 29.85 in 2.5 mi NNW 5.8 mph - 0.00 in Snow Light Snow
9:38 PM 28.4 °F 21.2 °F 28.4 °F 100% 29.85 in 3.0 mi NNW 6.9 mph - 0.00 in Snow Light Snow
9:56 PM 28.0 °F 21.7 °F 27.0 °F 96% 29.83 in 7.0 mi NNW 5.8 mph - 0.00 in   Overcast
10:56 PM 28.0 °F 22.8 °F 27.0 °F 96% 29.81 in 3.0 mi NNW 4.6 mph - 0.00 in Snow Light Snow
11:13 PM 28.4 °F 22.2 °F 26.6 °F 93% 29.81 in 5.0 mi NNW 5.8 mph - 0.00 in   Overcast
11:34 PM 26.6 °F 20.0 °F 26.6 °F 100% 29.81 in 2.5 mi NNW 5.8 mph - 0.00 in Snow Light Snow
11:44 PM 26.6 °F 20.0 °F 26.6 °F 100% 29.79 in 1.5 mi North 5.8 mph - 0.00 in Snow Light Snow
11:54 PM 26.6 °F 21.2 °F 26.6 °F 100% 29.78 in 2.0 mi North 4.6 mph - 0.00 in Snow Light Snow
11:56 PM 27.0 °F 20.5 °F 26.1 °F 96% 29.78 in 2.0 mi North 5.8 mph - 0.00 in Snow Light Snow