Weather History for Annapolis Naval Academy, MD

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Monday, September 17, 2012

  Actual Average (KBWI) Record (KBWI)
Temperature  
Mean Temperature 67 °F 67 °F  
Max Temperature 75 °F 78 °F 97 °F (1991)
Min Temperature 59 °F 57 °F 44 °F (1984)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 10  
Since 1 July heating degree days 11  
Cooling Degree Days 2 4  
Month to date cooling degree days 100  
Year to date cooling degree days 1110  
Growing Degree Days 17 (Base 50)    
Moisture  
Dew Point 61 °F    
Average Humidity 73    
Maximum Humidity 84    
Minimum Humidity 64    
Precipitation  
Precipitation 0.01 in 0.14 in 3.94 in (1876)
Month to date precipitation 2.18  
Year to date precipitation 30.03  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0  
Since 1 July snowfall 0.0  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 4 mph (SSE)    
Max Wind Speed 14 mph    
Max Gust Speed -    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 17, 2012 Rise Set
Actual Time 6:49 AM EDT 7:10 PM EDT
Civil Twilight 6:22 AM EDT 7:36 PM EDT
Nautical Twilight 5:51 AM EDT 8:08 PM EDT
Astronomical Twilight 5:19 AM EDT 8:40 PM EDT
Moon 8:34 AM EDT (9/17) 7:52 PM EDT (9/17)
Length of Visible Light 13h 14m
Length of Day
12h 20m
Waxing Crescent, 3% of the Moon is Illuminated
Sep 17
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
12:54 AM 62.1 °F 55.0 °F 78% 30.11 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:54 AM 63.0 °F 55.9 °F 78% 30.11 in 10.0 mi Calm Calm - N/A   Scattered Clouds
2:54 AM 61.0 °F 55.0 °F 81% 30.11 in 10.0 mi Calm Calm - N/A   Clear
3:54 AM 61.0 °F 55.0 °F 81% 30.10 in 10.0 mi Calm Calm - N/A   Clear
4:54 AM 60.1 °F 55.0 °F 83% 30.10 in 10.0 mi Calm Calm - N/A   Clear
5:54 AM 61.0 °F 55.9 °F 83% 30.11 in 10.0 mi Calm Calm - N/A   Clear
6:54 AM 59.0 °F 54.0 °F 83% 30.12 in 9.0 mi Calm Calm - N/A   Clear
7:54 AM 64.0 °F 57.9 °F 80% 30.13 in 9.0 mi Calm Calm - N/A   Clear
8:54 AM 69.1 °F 57.9 °F 68% 30.13 in 10.0 mi Calm Calm - N/A   Clear
9:54 AM 71.1 °F 60.1 °F 68% 30.13 in 10.0 mi SE 4.6 mph - N/A   Clear
10:54 AM 71.1 °F 61.0 °F 70% 30.13 in 10.0 mi ESE 8.1 mph - N/A   Mostly Cloudy
11:54 AM 73.0 °F 61.0 °F 66% 30.11 in 10.0 mi SE 10.4 mph - N/A   Mostly Cloudy
12:54 PM 73.0 °F 61.0 °F 66% 30.11 in 10.0 mi South 8.1 mph - N/A   Overcast
1:54 PM 73.0 °F 60.1 °F 64% 30.09 in 10.0 mi South 9.2 mph - N/A   Overcast
2:54 PM 73.9 °F 63.0 °F 68% 30.06 in 10.0 mi SSE 9.2 mph - N/A   Overcast
3:28 PM 73.0 °F 62.1 °F 68% 30.04 in 10.0 mi SSE 10.4 mph - N/A   Mostly Cloudy
3:37 PM 73.9 °F 62.1 °F 66% 30.04 in 10.0 mi South 10.4 mph - N/A   Mostly Cloudy
3:54 PM 73.9 °F 62.1 °F 66% 30.05 in 10.0 mi South 9.2 mph - N/A   Overcast
4:54 PM 73.9 °F 61.0 °F 64% 30.04 in 10.0 mi South 11.5 mph - N/A   Overcast
5:54 PM 73.9 °F 62.1 °F 66% 30.03 in 10.0 mi South 9.2 mph - N/A   Overcast
6:54 PM 73.0 °F 63.0 °F 71% 30.02 in 10.0 mi SSE 9.2 mph - N/A   Overcast
7:54 PM 73.9 °F 64.0 °F 71% 30.01 in 10.0 mi South 8.1 mph - N/A   Mostly Cloudy
8:54 PM 75.0 °F 64.9 °F 71% 30.01 in 10.0 mi SSE 13.8 mph - N/A   Overcast
9:54 PM 75.0 °F 66.0 °F 73% 30.01 in 10.0 mi SSE 9.2 mph - N/A   Overcast
10:33 PM 73.9 °F 66.0 °F 76% 30.00 in 10.0 mi South 8.1 mph - 0.00 in Rain Light Rain
10:50 PM 73.4 °F 66.2 °F 78% 29.99 in 10.0 mi South 8.1 mph - 0.00 in Rain Light Rain
10:54 PM 73.0 °F 66.0 °F 79% 30.00 in 10.0 mi South 9.2 mph - 0.00 in Rain Light Rain
11:54 PM 73.0 °F 68.0 °F 84% 29.99 in 8.0 mi South 9.2 mph - 0.01 in Rain Light Rain