Weather History for Groton, CT

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Thursday, September 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 57 °F -  
Max Temperature 66 °F 70 °F 88 °F (1983)
Min Temperature 48 °F 52 °F 34 °F (1979)
Degree Days  
Heating Degree Days 8    
Growing Degree Days 7 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 70    
Maximum Humidity 86    
Minimum Humidity 56    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.18 in    
Wind  
Wind Speed 10 mph (ENE)    
Max Wind Speed 15 mph    
Max Gust Speed -    
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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Date:

Astronomy

Sep. 20, 2012 Rise Set
Actual Time 6:34 AM EDT 6:48 PM EDT
Civil Twilight 6:06 AM EDT 7:15 PM EDT
Nautical Twilight 5:34 AM EDT 7:47 PM EDT
Astronomical Twilight 5:00 AM EDT 8:20 PM EDT
Moon 11:52 AM EDT (9/20) 9:43 PM EDT (9/20)
Length of Visible Light 13h 09m
Length of Day
12h 13m
Waxing Crescent, 26% of the Moon is Illuminated
Sep 20
Waxing Crescent
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 53.1 °F 46.9 °F 80% 30.17 in 10.0 mi North 9.2 mph - N/A   Clear
1:56 AM 52.0 °F 46.0 °F 80% 30.17 in 10.0 mi NNE 10.4 mph - N/A   Clear
2:56 AM 51.1 °F 46.0 °F 83% 30.18 in 10.0 mi North 9.2 mph - N/A   Clear
3:56 AM 50.0 °F 45.0 °F 83% 30.18 in 10.0 mi North 9.2 mph - N/A   Clear
4:56 AM 50.0 °F 45.0 °F 83% 30.20 in 10.0 mi North 9.2 mph - N/A   Clear
5:56 AM 48.9 °F 45.0 °F 86% 30.20 in 10.0 mi North 8.1 mph - N/A   Clear
6:56 AM 51.1 °F 46.0 °F 83% 30.21 in 10.0 mi North 8.1 mph - N/A   Clear
7:56 AM 55.9 °F 46.9 °F 72% 30.21 in 10.0 mi NE 12.7 mph - N/A   Clear
8:56 AM 60.8 °F 48.2 °F 63% 30.22 in 10.0 mi NE 15.0 mph - N/A   Clear
9:56 AM 62.1 °F 48.9 °F 62% 30.22 in 10.0 mi East 11.5 mph - N/A   Clear
10:56 AM 64.0 °F 48.9 °F 58% 30.22 in 10.0 mi ENE 6.9 mph - N/A   Clear
11:56 AM 64.9 °F 50.0 °F 58% 30.20 in 10.0 mi ESE 9.2 mph - N/A   Clear
12:56 PM 66.0 °F 51.1 °F 59% 30.19 in 10.0 mi SE 12.7 mph - N/A   Clear
1:56 PM 66.0 °F 51.1 °F 59% 30.17 in 10.0 mi SE 12.7 mph - N/A   Clear
2:56 PM 66.0 °F 50.0 °F 56% 30.16 in 10.0 mi ESE 12.7 mph - N/A   Clear
3:56 PM 66.0 °F 50.0 °F 56% 30.15 in 10.0 mi SE 9.2 mph - N/A   Clear
4:56 PM 66.0 °F 51.1 °F 59% 30.14 in 10.0 mi SE 10.4 mph - N/A   Clear
5:56 PM 64.0 °F 50.0 °F 60% 30.14 in 10.0 mi ESE 10.4 mph - N/A   Clear
6:56 PM 63.0 °F 48.9 °F 60% 30.15 in 10.0 mi ESE 8.1 mph - N/A   Clear
7:56 PM 60.1 °F 48.9 °F 67% 30.15 in 10.0 mi ENE 5.8 mph - N/A   Clear
8:56 PM 57.9 °F 48.9 °F 72% 30.16 in 10.0 mi ENE 6.9 mph - N/A   Clear
9:56 PM 55.9 °F 48.9 °F 77% 30.16 in 10.0 mi ENE 8.1 mph - N/A   Clear
10:56 PM 55.0 °F 48.9 °F 80% 30.15 in 10.0 mi ENE 6.9 mph - N/A   Clear
11:56 PM 55.0 °F 48.9 °F 80% 30.14 in 10.0 mi ENE 6.9 mph - N/A   Clear