Weather History for Groton, CT

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Monday, May 20, 2013

  Actual Average Record
Temperature  
Mean Temperature 63 °F -  
Max Temperature 72 °F 67 °F 82 °F (1962)
Min Temperature 55 °F 48 °F 37 °F (2002)
Degree Days  
Heating Degree Days 2    
Growing Degree Days 13 (Base 50)    
Moisture  
Dew Point 57 °F    
Average Humidity 89    
Maximum Humidity 100    
Minimum Humidity 70    
Precipitation  
Precipitation 0.02 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 6 mph (SW)    
Max Wind Speed 15 mph    
Max Gust Speed -    
Visibility 3 miles    
Events Fog , Rain    
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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Astronomy

May. 20, 2013 Rise Set
Actual Time 5:24 AM EDT 8:05 PM EDT
Civil Twilight 4:52 AM EDT 8:37 PM EDT
Nautical Twilight 4:12 AM EDT 9:17 PM EDT
Astronomical Twilight 3:27 AM EDT 10:03 PM EDT
Moon 3:06 PM EDT 2:21 AM EDT
Length of Visible Light 15h 44m
Length of Day
14h 40m
Waxing Gibbous, 75% of the Moon is Illuminated
May 20
Waxing Gibbous
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:11 AM 55.4 °F 53.6 °F 94% 30.21 in 2.0 mi ESE 6.9 mph - 0.01 in Rain Light Rain
12:37 AM 55.4 °F 53.6 °F 94% 30.18 in 3.0 mi SSE 9.2 mph - 0.01 in Rain Light Rain
12:56 AM 55.9 °F 53.1 °F 90% 30.17 in 2.5 mi SSE 10.4 mph - 0.01 in Rain Light Rain
1:17 AM 55.4 °F 53.6 °F 94% 30.16 in 4.0 mi South 10.4 mph - 0.00 in   Overcast
1:49 AM 55.4 °F 53.6 °F 94% 30.15 in 2.5 mi Calm Calm - 0.00 in   Overcast
1:56 AM 55.9 °F 53.1 °F 90% 30.15 in 3.0 mi Calm Calm - 0.00 in   Overcast
2:05 AM 55.4 °F 53.6 °F 94% 30.15 in 1.8 mi Calm Calm - 0.01 in Rain Light Rain
2:34 AM 55.4 °F 53.6 °F 94% 30.13 in 2.5 mi SSW 5.8 mph - 0.01 in   Overcast
2:56 AM 55.9 °F 54.0 °F 93% 30.13 in 1.8 mi Calm Calm - 0.01 in   Overcast
3:41 AM 57.2 °F 55.4 °F 94% 30.11 in 0.8 mi SSW 4.6 mph - N/A   Overcast
3:56 AM 55.9 °F 55.0 °F 97% 30.11 in 0.8 mi Calm Calm - N/A   Mist
4:40 AM 55.4 °F 53.6 °F 94% 30.09 in 0.2 mi South 3.5 mph - N/A Fog Fog
4:56 AM 55.0 °F 53.1 °F 93% 30.09 in 0.2 mi South 3.5 mph - N/A Fog Fog
5:56 AM 55.4 °F 53.6 °F 94% 30.08 in 0.2 mi NW 3.5 mph - N/A Fog Fog
6:56 AM 57.9 °F 55.9 °F 93% 30.08 in 0.2 mi SW 3.5 mph - N/A Fog Fog
7:03 AM 57.2 °F 57.2 °F 100% 30.08 in 0.5 mi SSW 3.5 mph - N/A Fog Fog
7:07 AM 57.2 °F 57.2 °F 100% 30.09 in 0.2 mi South 4.6 mph - N/A Fog Fog
7:56 AM 57.9 °F 57.0 °F 97% 30.09 in 0.2 mi SW 4.6 mph - N/A Fog Fog
8:09 AM 57.2 °F 55.4 °F 94% 30.08 in 0.2 mi SSW 5.8 mph - N/A Fog Fog
8:16 AM 57.2 °F 55.4 °F 94% 30.08 in 0.5 mi SW 4.6 mph - N/A Fog Fog
8:25 AM 57.2 °F 55.4 °F 94% 30.08 in 0.5 mi SW 4.6 mph - N/A Fog Fog
8:35 AM 59.0 °F 57.2 °F 94% 30.08 in 1.0 mi WSW 6.9 mph - N/A   Overcast
8:46 AM 57.2 °F 57.2 °F 100% 30.09 in 3.0 mi WSW 3.5 mph - N/A   Overcast
8:56 AM 57.9 °F 55.9 °F 93% 30.09 in 1.5 mi Calm Calm - N/A   Overcast
9:56 AM 59.0 °F 57.0 °F 93% 30.09 in 1.5 mi WSW 5.8 mph - N/A   Overcast
10:32 AM 60.8 °F 57.2 °F 88% 30.07 in 1.5 mi SW 12.7 mph - N/A   Overcast
10:39 AM 60.8 °F 57.2 °F 88% 30.07 in 2.5 mi SW 8.1 mph - N/A   Overcast
10:49 AM 60.8 °F 57.2 °F 88% 30.08 in 2.5 mi SW 9.2 mph - N/A   Overcast
10:56 AM 60.1 °F 57.0 °F 90% 30.08 in 3.0 mi SW 5.8 mph - N/A   Overcast
11:56 AM 64.9 °F 59.0 °F 81% 30.05 in 3.0 mi SW 9.2 mph - N/A   Haze
12:10 PM 62.6 °F 57.2 °F 82% 30.04 in 7.0 mi SW 12.7 mph - N/A   Overcast
12:18 PM 62.6 °F 57.2 °F 82% 30.04 in 3.0 mi SW 12.7 mph - N/A   Haze
12:56 PM 63.0 °F 57.0 °F 81% 30.03 in 3.0 mi SW 15.0 mph - N/A   Haze
1:56 PM 66.0 °F 59.0 °F 78% 30.01 in 7.0 mi WSW 13.8 mph - N/A   Clear
2:56 PM 70.0 °F 60.1 °F 71% 29.99 in 7.0 mi WSW 15.0 mph - N/A   Clear
3:56 PM 69.1 °F 60.1 °F 73% 29.98 in 7.0 mi SW 10.4 mph - N/A   Clear
4:56 PM 69.1 °F 60.1 °F 73% 29.97 in 6.0 mi WSW 10.4 mph - N/A   Haze
5:56 PM 71.1 °F 61.0 °F 70% 29.97 in 6.0 mi WSW 5.8 mph - N/A   Haze
6:56 PM 66.0 °F 59.0 °F 78% 29.98 in 5.0 mi SW 5.8 mph - N/A   Haze
7:56 PM 60.1 °F 57.0 °F 90% 29.97 in 5.0 mi SSW 5.8 mph - N/A   Clear
8:56 PM 62.1 °F 59.0 °F 90% 29.98 in 4.0 mi WSW 8.1 mph - N/A   Clear
9:56 PM 62.1 °F 60.1 °F 93% 29.99 in 4.0 mi WSW 3.5 mph - N/A   Clear
10:56 PM 63.0 °F 60.1 °F 90% 29.98 in 4.0 mi West 6.9 mph - N/A   Clear
11:56 PM 64.0 °F 61.0 °F 90% 29.98 in 4.0 mi West 5.8 mph - N/A   Clear