Weather History for Groton, CT

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Tuesday, August 20, 2013

  Actual Average Record
Temperature  
Mean Temperature 72 °F -  
Max Temperature 84 °F 78 °F 94 °F (1983)
Min Temperature 62 °F 60 °F 49 °F (1958)
Cooling Degree Days 6    
Growing Degree Days 22 (Base 50)    
Moisture  
Dew Point 63 °F    
Average Humidity 77    
Maximum Humidity 100    
Minimum Humidity 47    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.06 in    
Wind  
Wind Speed 4 mph (West)    
Max Wind Speed 13 mph    
Max Gust Speed -    
Visibility 7 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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Astronomy

Aug. 20, 2013 Rise Set
Actual Time 6:02 AM EDT 7:39 PM EDT
Civil Twilight 5:33 AM EDT 8:08 PM EDT
Nautical Twilight 4:57 AM EDT 8:44 PM EDT
Astronomical Twilight 4:20 AM EDT 9:21 PM EDT
Moon 7:08 PM EDT (8/20) 5:29 AM EDT (8/20)
Length of Visible Light 14h 35m
Length of Day
13h 37m
Full, 100% of the Moon is Illuminated
Aug 20
Full
Aug 20
Full
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 69.1 °F - 66.0 °F 90% 30.02 in 7.0 mi West 4.6 mph - N/A   Clear
1:56 AM 68.0 °F - 64.9 °F 90% 30.01 in 8.0 mi West 5.8 mph - N/A   Clear
2:56 AM 66.9 °F - 64.0 °F 90% 30.02 in 8.0 mi West 4.6 mph - N/A   Clear
3:56 AM 64.9 °F - 62.1 °F 90% 30.02 in 7.0 mi Calm Calm - N/A   Clear
4:56 AM 64.9 °F - 63.0 °F 93% 30.03 in 6.0 mi Calm Calm - N/A   Clear
5:54 AM 62.6 °F - 60.8 °F 94% 30.04 in 1.8 mi Calm Calm - N/A   Clear
5:56 AM 62.1 °F - 61.0 °F 96% 30.04 in 1.8 mi Calm Calm - N/A   Clear
5:59 AM 62.6 °F - 60.8 °F 94% 30.04 in 1.0 mi Calm Calm - N/A   Mist
6:10 AM 62.6 °F - 62.6 °F 100% 30.04 in 2.0 mi Calm Calm - N/A   Partly Cloudy
6:20 AM 62.6 °F - 62.6 °F 100% 30.05 in 3.0 mi Calm Calm - N/A   Partly Cloudy
6:56 AM 63.0 °F - 61.0 °F 93% 30.06 in 5.0 mi Calm Calm - N/A   Clear
7:56 AM 68.0 °F - 64.0 °F 87% 30.08 in 6.0 mi Calm Calm - N/A   Clear
8:56 AM 73.0 °F - 63.0 °F 71% 30.08 in 8.0 mi Variable 3.5 mph - N/A   Clear
9:56 AM 78.1 °F - 62.1 °F 58% 30.09 in 8.0 mi NW 6.9 mph - N/A   Clear
10:56 AM 81.0 °F 81.3 °F 59.0 °F 47% 30.09 in 9.0 mi NNW 9.2 mph - N/A   Clear
11:56 AM 79.0 °F - 66.9 °F 66% 30.09 in 8.0 mi SW 8.1 mph - N/A   Clear
12:56 PM 79.0 °F - 66.0 °F 64% 30.08 in 8.0 mi WSW 5.8 mph - N/A   Clear
1:56 PM 80.1 °F 82.1 °F 66.0 °F 62% 30.07 in 8.0 mi WSW 11.5 mph - N/A   Clear
2:56 PM 81.0 °F 82.2 °F 63.0 °F 54% 30.06 in 8.0 mi WSW 11.5 mph - N/A   Clear
3:56 PM 80.1 °F 81.5 °F 63.0 °F 56% 30.06 in 8.0 mi SW 12.7 mph - N/A   Clear
4:56 PM 80.1 °F 81.2 °F 62.1 °F 54% 30.06 in 8.0 mi WSW 11.5 mph - N/A   Clear
5:56 PM 80.1 °F 81.2 °F 62.1 °F 54% 30.07 in 8.0 mi WSW 6.9 mph - N/A   Clear
6:56 PM 78.1 °F - 61.0 °F 56% 30.07 in 8.0 mi West 5.8 mph - N/A   Clear
7:56 PM 72.0 °F - 64.9 °F 78% 30.08 in 7.0 mi SW 5.8 mph - N/A   Clear
8:56 PM 72.0 °F - 64.0 °F 76% 30.10 in 8.0 mi Calm Calm - N/A   Clear
9:56 PM 71.1 °F - 64.0 °F 78% 30.12 in 8.0 mi West 3.5 mph - N/A   Clear
10:56 PM 71.1 °F - 66.0 °F 84% 30.11 in 8.0 mi Calm Calm - N/A   Clear
11:56 PM 70.0 °F - 66.0 °F 87% 30.12 in 8.0 mi West 3.5 mph - N/A   Clear