Weather History for Groton, CT

Change the Weather History Date:

Saturday, April 20, 2013

  Actual Average Record
Temperature  
Mean Temperature 52 °F -  
Max Temperature 57 °F 57 °F 80 °F (1976)
Min Temperature 46 °F 38 °F 28 °F (1961)
Degree Days  
Heating Degree Days 14    
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 36 °F    
Average Humidity 57    
Maximum Humidity 83    
Minimum Humidity 34    
Precipitation  
Precipitation 0.33 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.81 in    
Wind  
Wind Speed 18 mph (WSW)    
Max Wind Speed 31 mph    
Max Gust Speed 41 mph    
Visibility 6 miles    
Events Rain    
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Apr. 20, 2013 Rise Set
Actual Time 6:00 AM EDT 7:34 PM EDT
Civil Twilight 5:31 AM EDT 8:03 PM EDT
Nautical Twilight 4:56 AM EDT 8:38 PM EDT
Astronomical Twilight 4:19 AM EDT 9:15 PM EDT
Moon 2:11 PM EDT (4/20) 2:52 AM EDT (4/20)
Length of Visible Light 14h 31m
Length of Day
13h 33m
Waxing Gibbous, 71% of the Moon is Illuminated
Apr 20
Waxing Gibbous
Apr 25
Full
May 2
Last Quarter
May 9
New
May 18
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:09 AM 57.2 °F - - N/A% 29.70 in 4.0 mi SSW 28.8 mph 39.1 mph 0.00 in Rain Light Rain
12:15 AM 57.2 °F - - N/A% 29.70 in 2.5 mi SSW 29.9 mph 38.0 mph 0.04 in Rain Rain
12:22 AM 57.2 °F - - N/A% 29.70 in 1.2 mi SSW 31.1 mph 41.4 mph 0.10 in Rain Heavy Rain
12:46 AM 55.4 °F - - N/A% 29.70 in 2.0 mi SSW 21.9 mph 34.5 mph 0.21 in Rain Rain
12:56 AM 55.0 °F - - N/A% 29.70 in 3.0 mi SSW 19.6 mph 28.8 mph 0.21 in Rain Light Rain
1:08 AM 55.4 °F - - N/A% 29.69 in 2.0 mi SSW 18.4 mph 27.6 mph 0.04 in Rain Rain
1:18 AM 55.4 °F - - N/A% 29.70 in 2.0 mi SSW 17.3 mph - 0.06 in Rain Rain
1:32 AM 55.4 °F - - N/A% 29.69 in 3.0 mi SSW 21.9 mph 31.1 mph 0.06 in Rain Light Rain
1:56 AM 55.9 °F - - N/A% 29.68 in 6.0 mi SSW 19.6 mph 25.3 mph 0.06 in Rain Light Rain
2:06 AM 55.4 °F - - N/A% 29.67 in 6.0 mi SSW 15.0 mph - 0.00 in   Haze
2:21 AM 55.4 °F - - N/A% 29.67 in 6.0 mi SW 15.0 mph - 0.00 in   Haze
2:56 AM 54.0 °F - - N/A% 29.66 in 4.0 mi SSW 13.8 mph - 0.00 in Rain Light Rain
3:12 AM 53.6 °F - - N/A% 29.67 in 3.0 mi SW 17.3 mph - 0.00 in Rain Light Rain
3:46 AM 53.6 °F - - N/A% 29.66 in 5.0 mi SSW 11.5 mph - 0.00 in Rain Light Rain
3:56 AM 52.0 °F - - N/A% 29.65 in 5.0 mi SSW 10.4 mph - 0.00 in   Haze
4:14 AM 51.8 °F - - N/A% 29.67 in 5.0 mi SW 12.7 mph - 0.00 in   Haze
4:26 AM 51.8 °F - - N/A% 29.68 in 6.0 mi SW 11.5 mph - 0.00 in   Haze
4:56 AM 50.0 °F - - N/A% 29.68 in 6.0 mi WSW 11.5 mph - 0.00 in Rain Light Rain
5:07 AM 50.0 °F - - N/A% 29.69 in 5.0 mi WSW 12.7 mph - 0.00 in Rain Light Rain
5:31 AM 51.8 °F - - N/A% 29.70 in 4.0 mi WSW 8.1 mph - 0.00 in Rain Light Rain
5:38 AM 50.0 °F - - N/A% 29.71 in 4.0 mi WSW 8.1 mph - 0.01 in Rain Light Rain
5:50 AM 51.8 °F - - N/A% 29.73 in 2.5 mi WNW 4.6 mph - 0.03 in Rain Rain
5:56 AM 51.1 °F - - N/A% 29.73 in 2.5 mi NNW 8.1 mph - 0.04 in Rain Rain
6:05 AM 51.8 °F - - N/A% 29.73 in 4.0 mi NW 16.1 mph 19.6 mph 0.00 in Rain Light Rain
6:15 AM 50.0 °F - - N/A% 29.75 in 6.0 mi NW 13.8 mph - 0.00 in Rain Light Rain
6:26 AM 50.0 °F - - N/A% 29.76 in 6.0 mi NW 11.5 mph - 0.00 in Rain Light Rain
6:56 AM 48.9 °F - - N/A% 29.79 in 4.0 mi NW 11.5 mph - 0.01 in Rain Light Rain
7:17 AM 46.4 °F 40.4 °F - N/A% 29.79 in 4.0 mi NW 13.8 mph - 0.01 in Rain Light Rain
7:56 AM 46.0 °F 40.6 °F - N/A% 29.83 in 5.0 mi NW 11.5 mph - 0.01 in Rain Light Rain
8:28 AM 46.4 °F 39.8 °F - N/A% 29.84 in 5.0 mi NW 16.1 mph 20.7 mph 0.00 in Rain Light Rain
8:54 AM 46.4 °F 40.7 °F - N/A% 29.84 in 9.0 mi NNW 12.7 mph 20.7 mph 0.00 in   Mostly Cloudy
8:56 AM 46.0 °F 41.0 °F - N/A% 29.84 in 9.0 mi NNW 10.4 mph 20.7 mph 0.00 in   Mostly Cloudy
9:56 AM 48.0 °F - - N/A% 29.88 in 10.0 mi WNW 6.9 mph - N/A   Overcast
10:56 AM 51.1 °F - - N/A% 29.91 in 10.0 mi West 8.1 mph - N/A   Overcast
11:56 AM 50.0 °F - 45.0 °F 83% 29.92 in 9.0 mi WSW 11.5 mph 19.6 mph N/A   Partly Cloudy
12:56 PM 52.0 °F - 43.0 °F 71% 29.91 in 10.0 mi SW 12.7 mph - N/A   Clear
1:56 PM 52.0 °F - 41.0 °F 66% 29.91 in 10.0 mi SW 13.8 mph 21.9 mph N/A   Clear
2:56 PM 53.1 °F - 42.1 °F 66% 29.92 in 10.0 mi WSW 11.5 mph 21.9 mph N/A   Clear
3:56 PM 55.9 °F - 28.0 °F 34% 29.94 in 10.0 mi WNW 16.1 mph 21.9 mph N/A   Clear
4:56 PM 51.1 °F - 37.0 °F 59% 29.97 in 10.0 mi WSW 16.1 mph 21.9 mph N/A   Clear
5:56 PM 51.1 °F - 37.0 °F 59% 30.00 in 10.0 mi SW 11.5 mph - N/A   Clear
6:56 PM 51.1 °F - 35.1 °F 54% 30.02 in 10.0 mi WSW 8.1 mph - N/A   Clear
7:56 PM 48.9 °F - 36.0 °F 61% 30.05 in 10.0 mi West 5.8 mph - N/A   Clear
8:56 PM 50.0 °F - 35.1 °F 57% 30.10 in 10.0 mi West 4.6 mph - N/A   Clear
9:56 PM 48.9 °F - 30.0 °F 48% 30.15 in 10.0 mi NNW 5.8 mph - N/A   Clear
10:56 PM 50.0 °F - 26.1 °F 39% 30.18 in 10.0 mi NNW 11.5 mph - N/A   Clear
11:56 PM 46.9 °F - 27.0 °F 46% 30.22 in 10.0 mi North 17.3 mph 26.5 mph N/A   Clear