Weather History for Groton, CT

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Friday, September 9, 2011

  Actual Average Record
Temperature  
Mean Temperature 72 °F -  
Max Temperature 82 °F 73 °F 89 °F (1959)
Min Temperature 62 °F 54 °F 43 °F (1990)
Cooling Degree Days 6    
Growing Degree Days 22 (Base 50)    
Moisture  
Dew Point 63 °F    
Average Humidity 82    
Maximum Humidity 94    
Minimum Humidity 50    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.81 in    
Wind  
Wind Speed 11 mph (NNW)    
Max Wind Speed 16 mph    
Max Gust Speed 22 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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Astronomy

Sep. 09, 2011 Rise Set
Actual Time 6:22 AM EDT 7:08 PM EDT
Civil Twilight 5:54 AM EDT 7:36 PM EDT
Nautical Twilight 5:21 AM EDT 8:09 PM EDT
Astronomical Twilight 4:46 AM EDT 8:43 PM EDT
Moon 5:33 PM EDT (9/9) 3:37 AM EDT (9/9)
Length of Visible Light 13h 41m
Length of Day
12h 45m
Waxing Gibbous, 93% of the Moon is Illuminated
Sep 9
Waxing Gibbous
Sep 12
Full
Sep 20
Last Quarter
Sep 27
New
Oct 3
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
12:38 AM 62.6 °F - 60.8 °F 94% 29.90 in 10.0 mi North 11.5 mph - N/A   Scattered Clouds
12:56 AM 63.0 °F - 61.0 °F 93% 29.89 in 10.0 mi North 11.5 mph - N/A   Clear
1:56 AM 63.0 °F - 61.0 °F 93% 29.89 in 10.0 mi North - - N/A   Clear
2:56 AM 63.0 °F - 61.0 °F 93% 29.87 in 10.0 mi North 10.4 mph - N/A   Clear
3:56 AM 63.0 °F - 60.1 °F 90% 29.83 in 10.0 mi North 10.4 mph - N/A   Clear
4:19 AM 62.6 °F - 60.8 °F 94% 29.84 in 10.0 mi North 11.5 mph - N/A   Partly Cloudy
4:33 AM 62.6 °F - 60.8 °F 94% 29.83 in 10.0 mi North 10.4 mph 17.3 mph N/A   Mostly Cloudy
4:56 AM 63.0 °F - 61.0 °F 93% 29.82 in 10.0 mi North 10.4 mph - N/A   Mostly Cloudy
5:56 AM 63.0 °F - 61.0 °F 93% 29.82 in 10.0 mi North 12.7 mph 17.3 mph N/A   Overcast
6:26 AM 64.4 °F - 60.8 °F 88% 29.80 in 10.0 mi North 10.4 mph 19.6 mph N/A   Scattered Clouds
6:56 AM 64.0 °F - 61.0 °F 90% 29.81 in 10.0 mi North 16.1 mph 21.9 mph N/A   Clear
7:21 AM 64.4 °F - 60.8 °F 88% 29.81 in 10.0 mi North 15.0 mph - N/A   Scattered Clouds
7:30 AM 64.4 °F - 60.8 °F 88% 29.81 in 10.0 mi North 13.8 mph - N/A   Mostly Cloudy
7:56 AM 64.9 °F - 62.1 °F 90% 29.80 in 10.0 mi North 13.8 mph 20.7 mph N/A   Overcast
8:30 AM 66.2 °F - 62.6 °F 88% 29.80 in 10.0 mi North 15.0 mph 20.7 mph N/A   Overcast
8:56 AM 68.0 °F - 63.0 °F 84% 29.79 in 10.0 mi North 15.0 mph - N/A   Overcast
9:31 AM 69.8 °F - 62.6 °F 78% 29.79 in 10.0 mi NNW 12.7 mph 20.7 mph N/A   Partly Cloudy
9:56 AM 69.8 °F - 62.6 °F 78% 29.79 in 10.0 mi North 16.1 mph 20.7 mph N/A   Clear
10:56 AM 71.6 °F - 64.4 °F 78% 29.79 in 10.0 mi North 11.5 mph - N/A   Clear
11:56 AM 75.2 °F - 64.4 °F 69% 29.78 in 10.0 mi NNW 11.5 mph 16.1 mph N/A   Clear
12:56 PM 78.1 °F - 64.9 °F 64% 29.78 in 10.0 mi NW 6.9 mph - N/A   Clear
1:56 PM 81.0 °F 81.7 °F 61.0 °F 50% 29.77 in 10.0 mi NW 9.2 mph - N/A   Clear
2:56 PM 75.9 °F - 68.0 °F 76% 29.76 in 10.0 mi SSW 9.2 mph - N/A   Clear
3:56 PM 79.0 °F - 64.0 °F 60% 29.75 in 10.0 mi Variable 6.9 mph - N/A   Clear
4:56 PM 78.1 °F - 66.0 °F 66% 29.76 in 10.0 mi West 6.9 mph - N/A   Clear
5:56 PM 77.0 °F - 68.0 °F 74% 29.77 in 10.0 mi WSW 6.9 mph - N/A   Clear
6:56 PM 73.9 °F - 66.9 °F 79% 29.78 in 10.0 mi WSW 3.5 mph - N/A   Partly Cloudy
7:56 PM 71.6 °F - 66.2 °F 83% 29.79 in 10.0 mi Calm Calm - N/A   Clear
8:56 PM 70.0 °F - 64.0 °F 81% 29.81 in 10.0 mi NW 5.8 mph - N/A   Clear
9:56 PM 66.9 °F - 61.0 °F 81% 29.83 in 10.0 mi NW 5.8 mph - N/A   Clear
10:56 PM 66.0 °F - 59.0 °F 78% 29.84 in 10.0 mi NNE 4.6 mph - N/A   Clear
11:56 PM 62.1 °F - 59.0 °F 90% 29.84 in 10.0 mi NE 3.5 mph - N/A   Clear