Weather History for Groton, CT

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Thursday, May 31, 2012

  Actual Average Record
Temperature  
Mean Temperature 69 °F -  
Max Temperature 81 °F 71 °F 87 °F (1987)
Min Temperature 57 °F 53 °F 33 °F (1961)
Cooling Degree Days 4    
Growing Degree Days 19 (Base 50)    
Moisture  
Dew Point 55 °F    
Average Humidity 78    
Maximum Humidity 100    
Minimum Humidity 34    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.74 in    
Wind  
Wind Speed 2 mph (NNW)    
Max Wind Speed 15 mph    
Max Gust Speed 20 mph    
Visibility 4 miles    
Events Fog    
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. 31, 2012 Rise Set
Actual Time 5:17 AM EDT 8:14 PM EDT
Civil Twilight 4:44 AM EDT 8:47 PM EDT
Nautical Twilight 4:02 AM EDT 9:29 PM EDT
Astronomical Twilight 3:13 AM EDT 10:18 PM EDT
Moon 3:58 PM EDT (5/31) 2:16 AM EDT (5/31)
Length of Visible Light 16h 03m
Length of Day
14h 57m
Waxing Gibbous, 80% of the Moon is Illuminated
May 31
Waxing Gibbous
Jun 4
Full
Jun 11
Last Quarter
Jun 19
New
Jun 26
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
12:37 AM 60.8 °F - 59.0 °F 94% 29.72 in 1.2 mi Calm Calm - N/A   Clear
12:41 AM 59.0 °F - 59.0 °F 100% 29.72 in 0.2 mi Calm Calm - N/A Fog Fog
12:56 AM 61.0 °F - 59.0 °F 93% 29.73 in 1.2 mi Calm Calm - N/A   Scattered Clouds
1:04 AM 60.8 °F - 59.0 °F 94% 29.73 in 2.5 mi Calm Calm - N/A   Scattered Clouds
1:27 AM 60.8 °F - 59.0 °F 94% 29.72 in 4.0 mi Calm Calm - N/A   Clear
1:43 AM 59.0 °F - 57.2 °F 94% 29.71 in 1.5 mi Calm Calm - N/A   Clear
1:56 AM 61.0 °F - 59.0 °F 93% 29.71 in 0.5 mi Calm Calm - N/A Fog Fog
2:04 AM 60.8 °F - 59.0 °F 94% 29.71 in 0.5 mi Calm Calm - N/A Fog Fog
2:09 AM 60.8 °F - 59.0 °F 94% 29.72 in 1.5 mi Calm Calm - N/A   Partly Cloudy
2:11 AM 60.8 °F - 59.0 °F 94% 29.72 in 3.0 mi Calm Calm - N/A   Partly Cloudy
2:25 AM 60.8 °F - 57.2 °F 88% 29.71 in 1.8 mi Calm Calm - N/A   Partly Cloudy
2:27 AM 60.8 °F - 57.2 °F 88% 29.71 in 0.8 mi Calm Calm - N/A   Mist
2:39 AM 60.8 °F - 57.2 °F 88% 29.71 in 1.5 mi Calm Calm - N/A   Partly Cloudy
2:43 AM 60.8 °F - 57.2 °F 88% 29.71 in 3.0 mi Calm Calm - N/A   Partly Cloudy
2:56 AM 59.0 °F - 57.0 °F 93% 29.71 in 6.0 mi Calm Calm - N/A   Partly Cloudy
3:46 AM 59.0 °F - 57.2 °F 94% 29.72 in 1.8 mi Calm Calm - N/A   Mostly Cloudy
3:56 AM 59.0 °F - 57.9 °F 96% 29.72 in 1.0 mi Calm Calm - N/A   Mostly Cloudy
4:04 AM 57.2 °F - 57.2 °F 100% 29.71 in 0.5 mi Calm Calm - N/A Fog Fog
4:13 AM 57.2 °F - 57.2 °F 100% 29.70 in 1.5 mi Calm Calm - N/A   Mostly Cloudy
4:27 AM 57.2 °F - 57.2 °F 100% 29.70 in 0.2 mi NW 4.6 mph - N/A Fog Fog
4:41 AM 57.2 °F - 55.4 °F 94% 29.71 in 1.0 mi Calm Calm - N/A   Mist
4:45 AM 57.2 °F - 55.4 °F 94% 29.71 in 2.0 mi Calm Calm - N/A   Scattered Clouds
4:56 AM 59.0 °F - 57.0 °F 93% 29.71 in 1.8 mi Calm Calm - N/A   Partly Cloudy
5:04 AM 59.0 °F - 57.2 °F 94% 29.71 in 3.0 mi Calm Calm - N/A   Clear
5:17 AM 57.2 °F - 55.4 °F 94% 29.72 in 2.5 mi Calm Calm - N/A   Partly Cloudy
5:24 AM 57.2 °F - 55.4 °F 94% 29.72 in 1.5 mi Calm Calm - N/A   Mostly Cloudy
5:27 AM 57.2 °F - 55.4 °F 94% 29.72 in 0.2 mi Calm Calm - N/A Fog Fog
5:44 AM 57.2 °F - 55.4 °F 94% 29.72 in 0.2 mi Calm Calm - N/A Fog Fog
5:53 AM 57.2 °F - 55.4 °F 94% 29.72 in 0.2 mi Calm Calm - N/A Fog Fog
5:54 AM 57.0 °F - 55.9 °F 96% 29.73 in 0.2 mi Calm Calm - N/A Fog Fog
6:04 AM 57.2 °F - 57.2 °F 100% 29.72 in 0.2 mi Calm Calm - N/A Fog Fog
6:56 AM 62.1 °F - 61.0 °F 96% 29.73 in 1.5 mi Calm Calm - N/A   Scattered Clouds
7:05 AM 62.6 °F - 62.6 °F 100% 29.73 in 2.5 mi Calm Calm - N/A   Partly Cloudy
7:12 AM 62.6 °F - 62.6 °F 100% 29.74 in 3.0 mi Calm Calm - N/A   Partly Cloudy
7:56 AM 69.1 °F - 62.1 °F 78% 29.76 in 6.0 mi North 5.8 mph - N/A   Haze
8:56 AM 72.0 °F - 57.0 °F 59% 29.75 in 9.0 mi NNW 10.4 mph - N/A   Clear
9:56 AM 75.0 °F - 55.0 °F 50% 29.75 in 10.0 mi North 11.5 mph - N/A   Clear
10:56 AM 77.0 °F - 54.0 °F 45% 29.76 in 10.0 mi North 15.0 mph - N/A   Clear
11:56 AM 78.1 °F - 51.1 °F 39% 29.75 in 10.0 mi North 11.5 mph - N/A   Clear
12:56 PM 80.1 °F 79.9 °F 53.1 °F 39% 29.75 in 10.0 mi WNW 12.7 mph 17.3 mph N/A   Clear
1:56 PM 81.0 °F - 52.0 °F 36% 29.75 in 10.0 mi NW 10.4 mph - N/A   Clear
2:56 PM 79.0 °F - 51.1 °F 38% 29.75 in 10.0 mi NNW 8.1 mph - N/A   Scattered Clouds
3:56 PM 80.1 °F - 50.0 °F 35% 29.75 in 10.0 mi NNW 8.1 mph 18.4 mph N/A   Partly Cloudy
4:56 PM 79.0 °F - 48.9 °F 35% 29.76 in 10.0 mi North 12.7 mph 19.6 mph N/A   Partly Cloudy
5:56 PM 79.0 °F - 48.0 °F 34% 29.77 in 10.0 mi NW 11.5 mph 16.1 mph N/A   Clear
6:56 PM 77.0 °F - 46.9 °F 34% 29.79 in 10.0 mi NNW 8.1 mph - N/A   Clear
7:56 PM 73.9 °F - 48.0 °F 40% 29.82 in 10.0 mi NW 9.2 mph - N/A   Clear
8:56 PM 70.0 °F - 46.9 °F 44% 29.84 in 10.0 mi NW 9.2 mph - N/A   Clear
9:56 PM 66.9 °F - 46.9 °F 49% 29.87 in 10.0 mi NNW 8.1 mph - N/A   Clear
10:56 PM 66.9 °F - 46.9 °F 49% 29.88 in 10.0 mi NNW 9.2 mph - N/A   Clear
11:56 PM 66.0 °F - 48.0 °F 52% 29.90 in 10.0 mi NNW 9.2 mph - N/A   Clear