Weather History for Washington, DC

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Tuesday, April 23, 2013

  Actual Average Record
Temperature  
Mean Temperature 56 °F 59 °F  
Max Temperature 63 °F 69 °F 95 °F (1960)
Min Temperature 48 °F 49 °F 33 °F (1933)
Degree Days  
Heating Degree Days 9 7  
Month to date heating degree days 178 228  
Since 1 July heating degree days 3643 3904  
Cooling Degree Days 0 1  
Month to date cooling degree days 41 14  
Year to date cooling degree days 41 16  
Growing Degree Days 6 (Base 50)    
Moisture  
Dew Point 40 °F    
Average Humidity 60    
Maximum Humidity 77    
Minimum Humidity 43    
Precipitation  
Precipitation 0.00 in 0.10 in 1.38 in (1921)
Month to date precipitation 2.53 2.34  
Year to date precipitation 9.53 11.25  
Snow  
Snow 0.00 in 0.00 in T in (1986)
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 3.1 15.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.27 in    
Wind  
Wind Speed 6 mph (ENE)    
Max Wind Speed 15 mph    
Max Gust Speed 20 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Apr. 23, 2013 Rise Set
Actual Time 6:20 AM EDT 7:53 PM EDT
Civil Twilight 5:52 AM EDT 8:21 PM EDT
Nautical Twilight 5:18 AM EDT 8:55 PM EDT
Astronomical Twilight 4:42 AM EDT 9:31 PM EDT
Moon 5:46 PM EDT (4/23) 4:45 AM EDT (4/23)
Length of Visible Light 14h 29m
Length of Day
13h 32m
Waxing Gibbous, 94% of the Moon is Illuminated
Apr 23
Waxing Gibbous
Apr 25
Full
May 2
Last Quarter
May 9
New
May 18
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 50.0 °F 37.9 °F 63% 30.40 in 10.0 mi ENE 13.8 mph - N/A   Overcast
1:05 AM 50.0 °F 37.4 °F 62% 30.40 in 10.0 mi ENE 13.8 mph - N/A   Overcast
1:52 AM 48.9 °F 37.9 °F 66% 30.39 in 10.0 mi NE 11.5 mph - N/A   Overcast
2:52 AM 48.0 °F 37.9 °F 68% 30.37 in 10.0 mi NNE 11.5 mph - N/A   Overcast
3:52 AM 48.2 °F 39.2 °F 71% 30.35 in 10.0 mi NNE 8.1 mph - N/A   Overcast
4:52 AM 48.9 °F 41.0 °F 74% 30.34 in 10.0 mi NE 11.5 mph - N/A   Overcast
5:52 AM 48.0 °F 39.0 °F 71% 30.32 in 10.0 mi NNE 11.5 mph - N/A   Overcast
6:52 AM 48.0 °F 39.9 °F 74% 30.33 in 10.0 mi NE 9.2 mph - N/A   Overcast
7:52 AM 48.0 °F 41.0 °F 77% 30.33 in 10.0 mi North 11.5 mph - N/A   Overcast
8:52 AM 48.9 °F 41.0 °F 74% 30.32 in 9.0 mi NE 12.7 mph - N/A   Overcast
9:52 AM 48.9 °F 39.9 °F 71% 30.32 in 10.0 mi NNE 10.4 mph - N/A   Overcast
10:52 AM 52.0 °F 41.0 °F 66% 30.30 in 10.0 mi NNE 9.2 mph - N/A   Overcast
11:18 AM 53.6 °F 42.8 °F 67% 30.29 in 10.0 mi ENE 10.4 mph - N/A   Overcast
11:52 AM 54.0 °F 41.0 °F 62% 30.29 in 10.0 mi East 4.6 mph - N/A   Overcast
12:52 PM 55.0 °F 39.9 °F 57% 30.27 in 10.0 mi NE 4.6 mph - N/A   Overcast
1:52 PM 57.0 °F 39.0 °F 51% 30.26 in 10.0 mi Calm Calm - N/A   Overcast
2:52 PM 57.9 °F 39.9 °F 51% 30.25 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:52 PM 60.1 °F 39.9 °F 47% 30.19 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:52 PM 61.0 °F 39.9 °F 46% 30.18 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:52 PM 63.0 °F 39.9 °F 43% 30.15 in 10.0 mi Calm Calm - N/A   Clear
6:52 PM 63.0 °F 43.0 °F 48% 30.15 in 10.0 mi Calm Calm - N/A   Clear
7:52 PM 57.9 °F 42.1 °F 56% 30.15 in 10.0 mi SE 10.4 mph - N/A   Scattered Clouds
8:52 PM 55.9 °F 42.1 °F 60% 30.16 in 10.0 mi SE 6.9 mph - N/A   Scattered Clouds
9:52 PM 54.0 °F 41.0 °F 62% 30.17 in 10.0 mi SSE 4.6 mph - N/A   Partly Cloudy
10:52 PM 52.0 °F 41.0 °F 66% 30.15 in 10.0 mi Calm Calm - N/A   Partly Cloudy
11:52 PM 53.1 °F 41.0 °F 64% 30.14 in 10.0 mi SE 3.5 mph - N/A   Partly Cloudy