Weather History for Annapolis Naval Academy, MD

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Monday, December 31, 2012

  Actual Average (KBWI) Record (KBWI)
Temperature  
Mean Temperature 44 °F 34 °F  
Max Temperature 52 °F 42 °F 72 °F (1992)
Min Temperature 37 °F 25 °F -1 °F (1880)
Degree Days  
Heating Degree Days 20 31  
Month to date heating degree days 877  
Since 1 July heating degree days 1781  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 1164  
Moisture  
Dew Point 23 °F    
Average Humidity 45    
Maximum Humidity 68    
Minimum Humidity 31    
Precipitation  
Precipitation 0.00 in 0.09 in 2.37 in (1975)
Month to date precipitation 3.37  
Year to date precipitation 41.88  
Snow  
Snow 0.00 in 0.10 in 3.20 in (1970)
Month to date snowfall 3.0  
Since 1 July snowfall 3.4  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.19 in    
Wind  
Wind Speed 4 mph (SW)    
Max Wind Speed 9 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 31, 2012 Rise Set
Actual Time 7:24 AM EST 4:53 PM EST
Civil Twilight 6:54 AM EST 5:23 PM EST
Nautical Twilight 6:21 AM EST 5:57 PM EST
Astronomical Twilight 5:49 AM EST 6:29 PM EST
Moon 8:20 PM EST (12/31) 9:06 AM EST (12/31)
Length of Visible Light 10h 28m
Length of Day
9h 29m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 31
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 46.0 °F 43.9 °F 19.0 °F 34% 30.33 in 10.0 mi WSW 4.6 mph - N/A   Clear
1:54 AM 46.9 °F - 19.9 °F 34% 30.33 in 10.0 mi WNW 3.5 mph - N/A   Clear
2:54 AM 46.9 °F - 19.0 °F 33% 30.33 in 10.0 mi WNW 3.5 mph - N/A   Clear
3:54 AM 48.0 °F - 19.9 °F 33% 30.30 in 10.0 mi WNW 4.6 mph - N/A   Clear
4:54 AM 48.0 °F - 21.0 °F 34% 30.29 in 10.0 mi Variable 4.6 mph - N/A   Clear
5:54 AM 41.0 °F - 19.0 °F 41% 30.29 in 10.0 mi Calm Calm - N/A   Clear
6:54 AM 46.9 °F - 19.9 °F 34% 30.29 in 10.0 mi Variable 4.6 mph - N/A   Clear
7:54 AM 45.0 °F 42.6 °F 21.0 °F 39% 30.29 in 10.0 mi WSW 4.6 mph - N/A   Clear
8:54 AM 51.1 °F - 21.0 °F 31% 30.29 in 10.0 mi WSW 4.6 mph - N/A   Clear
9:54 AM 48.0 °F - 21.0 °F 34% 30.28 in 10.0 mi Variable 3.5 mph - N/A   Clear
10:54 AM 52.0 °F - 21.9 °F 31% 30.26 in 10.0 mi SSW 6.9 mph - N/A   Clear
11:54 AM 39.0 °F 35.7 °F 23.0 °F 53% 30.22 in 10.0 mi Variable 4.6 mph - N/A   Clear
12:54 PM 37.9 °F 32.1 °F 28.0 °F 68% 30.18 in 10.0 mi SE 8.1 mph - N/A   Clear
1:54 PM 41.0 °F 38.0 °F 27.0 °F 57% 30.13 in 10.0 mi South 4.6 mph - N/A   Clear
2:54 PM 39.9 °F 35.1 °F 27.0 °F 60% 30.14 in 10.0 mi South 6.9 mph - N/A   Clear
3:54 PM 39.9 °F 33.9 °F 28.0 °F 63% 30.12 in 10.0 mi SSE 9.2 mph - N/A   Overcast
4:54 PM 41.0 °F 38.0 °F 28.0 °F 60% 30.11 in 10.0 mi SSW 4.6 mph - N/A   Overcast
5:54 PM 41.0 °F 39.0 °F 23.0 °F 49% 30.09 in 10.0 mi Variable 3.5 mph - N/A   Overcast
6:54 PM 41.0 °F 37.1 °F 23.0 °F 49% 30.09 in 10.0 mi SW 5.8 mph - N/A   Overcast
7:54 PM 39.9 °F - 24.1 °F 53% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
8:54 PM 41.0 °F 39.0 °F 24.1 °F 51% 30.04 in 10.0 mi WSW 3.5 mph - N/A   Overcast
9:54 PM 41.0 °F 38.0 °F 24.1 °F 51% 30.03 in 10.0 mi WSW 4.6 mph - N/A   Overcast
10:54 PM 42.1 °F 37.7 °F 23.0 °F 47% 30.03 in 10.0 mi WSW 6.9 mph - N/A   Mostly Cloudy
11:54 PM 42.1 °F 39.2 °F 23.0 °F 47% 30.01 in 10.0 mi West 4.6 mph - N/A   Scattered Clouds