Weather History for Washington, DC

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Tuesday, May 13, 2014

  Actual Average Record
Temperature  
Mean Temperature 78 °F 65 °F  
Max Temperature 92 °F 75 °F 95 °F (1881)
Min Temperature 63 °F 56 °F 39 °F (1878)
Degree Days  
Heating Degree Days 0 3  
Month to date heating degree days 14 48  
Since 1 July heating degree days 4103 3994  
Cooling Degree Days 13 3  
Month to date cooling degree days 56 26  
Year to date cooling degree days 77 52  
Growing Degree Days 30 (Base 50)    
Moisture  
Dew Point 65 °F    
Average Humidity 69    
Maximum Humidity 93    
Minimum Humidity 44    
Precipitation  
Precipitation 0.00 in 0.13 in 2.81 in (1897)
Month to date precipitation 0.92 1.60  
Year to date precipitation 18.25 13.57  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 32.0 15.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.10 in    
Wind  
Wind Speed 6 mph (ESE)    
Max Wind Speed 20 mph    
Max Gust Speed 23 mph    
Visibility 9 miles    
Events Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 13, 2014 Rise Set
Actual Time 5:57 AM EDT 8:11 PM EDT
Civil Twilight 5:27 AM EDT 8:41 PM EDT
Nautical Twilight 4:51 AM EDT 9:18 PM EDT
Astronomical Twilight 4:11 AM EDT 9:58 PM EDT
Moon 7:11 PM EDT (5/13) 5:11 AM EDT (5/13)
Length of Visible Light 15h 14m
Length of Day
14h 14m
Waxing Gibbous, 98% of the Moon is Illuminated
May 13
Waxing Gibbous
May 14
Full
May 21
Last Quarter
May 28
New
Jun 5
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 70.0 °F - 66.9 °F 90% 30.08 in 10.0 mi SSE 3.5 mph - N/A   Mostly Cloudy
1:52 AM 69.1 °F - 66.9 °F 93% 30.07 in 7.0 mi SSW 3.5 mph - N/A   Mostly Cloudy
2:52 AM 69.1 °F - 66.9 °F 93% 30.05 in 6.0 mi South 3.5 mph - N/A   Mostly Cloudy
3:52 AM 69.1 °F - 66.9 °F 93% 30.06 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
4:52 AM 68.0 °F - 66.2 °F 94% 30.06 in 6.0 mi Calm Calm - N/A   Scattered Clouds
5:52 AM 69.1 °F - 64.9 °F 87% 30.08 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
6:52 AM 70.0 °F - 64.9 °F 84% 30.07 in 10.0 mi SSE 3.5 mph - N/A   Mostly Cloudy
7:52 AM 73.4 °F - 66.2 °F 78% 30.08 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:52 AM 73.4 °F - 68.0 °F 83% 30.10 in 10.0 mi Variable 3.5 mph - N/A   Scattered Clouds
9:52 AM 79.0 °F - 66.9 °F 66% 30.12 in 10.0 mi Variable 3.5 mph - N/A   Scattered Clouds
11:52 AM 80.6 °F 82.7 °F 66.2 °F 61% 30.11 in 10.0 mi SSE 3.5 mph - N/A   Scattered Clouds
12:52 PM 84.9 °F 87.6 °F 66.9 °F 55% 30.10 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:52 PM 89.1 °F 90.3 °F 64.0 °F 43% 30.09 in 10.0 mi Calm Calm - N/A   Scattered Clouds
2:52 PM 90.0 °F 92.4 °F 66.0 °F 45% 30.08 in 10.0 mi North 5.8 mph 16.1 mph N/A   Scattered Clouds
3:52 PM 88.0 °F 92.1 °F 69.1 °F 53% 30.06 in 10.0 mi East 10.4 mph - N/A   Mostly Cloudy
4:52 PM 87.1 °F 90.6 °F 68.0 °F 53% 30.06 in 10.0 mi ESE 10.4 mph - N/A   Partly Cloudy
5:52 PM 86.0 °F 88.2 °F 66.0 °F 51% 30.07 in 10.0 mi ESE 10.4 mph - N/A   Scattered Clouds
6:52 PM 80.1 °F 82.1 °F 66.0 °F 62% 30.09 in 10.0 mi East 10.4 mph - N/A   Scattered Clouds
7:52 PM - - - N/A% 30.12 in 10.0 mi East 9.2 mph - N/A   Scattered Clouds
8:16 PM 75.2 °F - 60.8 °F 61% 30.16 in 10.0 mi East 6.9 mph - N/A   Scattered Clouds
8:28 PM 75.2 °F - 60.8 °F 61% 30.17 in 10.0 mi NE 6.9 mph - N/A Thunderstorm Thunderstorm
8:52 PM 75.0 °F - 62.1 °F 64% 30.16 in 10.0 mi ESE 10.4 mph - N/A   Mostly Cloudy
9:52 PM 73.0 °F - 61.0 °F 66% 30.17 in 10.0 mi ESE 12.7 mph - N/A   Scattered Clouds
10:52 PM 70.0 °F - 60.1 °F 71% 30.15 in 9.0 mi East 9.2 mph 18.4 mph N/A   Scattered Clouds
11:52 PM 66.0 °F - 57.9 °F 75% 30.19 in 10.0 mi East 11.5 mph - N/A   Overcast