Weather History for Groton, CT

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Monday, September 30, 2013

  Actual Average Record
Temperature  
Mean Temperature 61 °F -  
Max Temperature 71 °F 68 °F 80 °F (1986)
Min Temperature 51 °F 47 °F 36 °F (1991)
Degree Days  
Heating Degree Days 4    
Growing Degree Days 11 (Base 50)    
Moisture  
Dew Point 51 °F    
Average Humidity 80    
Maximum Humidity 96    
Minimum Humidity 42    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 7 mph (North)    
Max Wind Speed 10 mph    
Max Gust Speed -    
Visibility 9 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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Date:

Astronomy

Sep. 30, 2013 Rise Set
Actual Time 6:44 AM EDT 6:31 PM EDT
Civil Twilight 6:16 AM EDT 6:58 PM EDT
Nautical Twilight 5:44 AM EDT 7:30 PM EDT
Astronomical Twilight 5:12 AM EDT 8:03 PM EDT
Moon 2:15 AM EDT (9/30) 4:02 PM EDT (9/30)
Length of Visible Light 12h 42m
Length of Day
11h 47m
Waning Crescent, 19% of the Moon is Illuminated
Sep 30
Waning Crescent
Oct 4
New
Oct 11
First Quarter
Oct 18
Full
Oct 26
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 57.0 °F 51.1 °F 81% 30.09 in 10.0 mi North 8.1 mph - N/A   Overcast
1:56 AM 55.9 °F 52.0 °F 87% 30.09 in 10.0 mi North 8.1 mph - N/A   Overcast
2:08 AM 55.4 °F 51.8 °F 88% 30.09 in 10.0 mi North 6.9 mph - N/A   Overcast
2:56 AM 54.0 °F 51.1 °F 90% 30.07 in 10.0 mi North 8.1 mph - N/A   Partly Cloudy
3:56 AM 53.1 °F 51.1 °F 93% 30.07 in 10.0 mi North 6.9 mph - N/A   Partly Cloudy
4:56 AM 53.1 °F 51.1 °F 93% 30.07 in 10.0 mi North 6.9 mph - N/A   Overcast
5:56 AM 52.0 °F 50.0 °F 93% 30.07 in 10.0 mi North 8.1 mph - N/A   Mostly Cloudy
6:56 AM 51.1 °F 50.0 °F 96% 30.07 in 7.0 mi North 6.9 mph - N/A   Scattered Clouds
7:20 AM 51.8 °F 50.0 °F 94% 30.06 in 6.0 mi North 6.9 mph - N/A   Mostly Cloudy
7:29 AM 51.8 °F 50.0 °F 94% 30.06 in 6.0 mi North 8.1 mph - N/A   Scattered Clouds
7:56 AM 52.0 °F 50.0 °F 93% 30.07 in 8.0 mi North 6.9 mph - N/A   Partly Cloudy
8:56 AM 57.9 °F 51.1 °F 78% 30.07 in 10.0 mi NNE 3.5 mph - N/A   Scattered Clouds
9:56 AM 59.0 °F 53.1 °F 81% 30.08 in 10.0 mi ESE 6.9 mph - N/A   Scattered Clouds
10:56 AM 64.0 °F 54.0 °F 70% 30.05 in 10.0 mi Variable 4.6 mph - N/A   Clear
11:56 AM 66.9 °F 48.9 °F 52% 30.03 in 10.0 mi NNE 6.9 mph - N/A   Clear
12:56 PM 69.1 °F 48.0 °F 47% 30.02 in 10.0 mi NNE 5.8 mph - N/A   Clear
1:56 PM 71.1 °F 46.9 °F 42% 30.01 in 10.0 mi Variable 6.9 mph - N/A   Clear
2:56 PM 68.0 °F 54.0 °F 61% 29.99 in 10.0 mi SW 9.2 mph - N/A   Clear
3:56 PM 66.9 °F 52.0 °F 59% 29.98 in 10.0 mi WSW 10.4 mph - N/A   Clear
4:56 PM 66.9 °F 53.1 °F 61% 29.97 in 10.0 mi WSW 9.2 mph - N/A   Clear
5:56 PM 64.9 °F 53.1 °F 65% 29.98 in 8.0 mi WSW 5.8 mph - N/A   Clear
6:56 PM 63.0 °F 53.1 °F 70% 29.98 in 10.0 mi Calm Calm - N/A   Clear
7:56 PM 57.0 °F 53.1 °F 87% 29.98 in 10.0 mi Calm Calm - N/A   Clear
8:56 PM 55.9 °F 53.1 °F 90% 29.99 in 10.0 mi Calm Calm - N/A   Clear
9:56 PM 55.0 °F 53.1 °F 93% 29.99 in 10.0 mi Calm Calm - N/A   Clear
10:56 PM 53.1 °F 51.1 °F 93% 29.99 in 10.0 mi Calm Calm - N/A   Clear
11:56 PM 51.1 °F 50.0 °F 96% 29.98 in 10.0 mi Calm Calm - N/A   Clear