Weather History for Washington, DC

Change the Weather History Date:

Wednesday, May 21, 2008

  Actual Average Record
Temperature  
Mean Temperature 62 °F 67 °F  
Max Temperature 72 °F 77 °F 95 °F (1934)
Min Temperature 51 °F 58 °F 41 °F (1907)
Degree Days  
Heating Degree Days 3 2  
Month to date heating degree days 60 66  
Since 1 July heating degree days 3456 4012  
Cooling Degree Days 0 4  
Month to date cooling degree days 26 54  
Year to date cooling degree days 55 80  
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 43 °F    
Average Humidity 56    
Maximum Humidity 83    
Minimum Humidity 29    
Precipitation  
Precipitation T in 0.14 in 1.79 in (1909)
Month to date precipitation 9.21 2.67  
Year to date precipitation 22.47 14.64  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 4.9 15.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.58 in    
Wind  
Wind Speed 7 mph (WSW)    
Max Wind Speed 38 mph    
Max Gust Speed 54 mph    
Visibility 10 miles    
Events Rain    
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

May. 21, 2008 Rise Set
Actual Time 5:50 AM EDT 8:19 PM EDT
Civil Twilight 5:20 AM EDT 8:50 PM EDT
Nautical Twilight 4:42 AM EDT 9:27 PM EDT
Astronomical Twilight 4:00 AM EDT 10:10 PM EDT
Moon 10:17 PM EDT (5/21) 6:26 AM EDT (5/21)
Length of Visible Light 15h 29m
Length of Day
14h 28m
Full, 98% of the Moon is Illuminated
May 21
Full
May 27
Last Quarter
Jun 3
New
Jun 10
First Quarter
Jun 18
Full

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 52.0 °F 45.0 °F 77% 29.57 in 10.0 mi South 4.6 mph - N/A   Clear
1:52 AM 52.0 °F 46.0 °F 80% 29.56 in 10.0 mi South 3.5 mph - N/A   Partly Cloudy
2:52 AM 54.0 °F 43.0 °F 66% 29.55 in 10.0 mi WNW 5.8 mph - N/A   Mostly Cloudy
3:52 AM 55.9 °F 42.1 °F 60% 29.55 in 10.0 mi WNW 6.9 mph - N/A   Overcast
4:52 AM 55.9 °F 39.9 °F 55% 29.56 in 10.0 mi WSW 8.1 mph - N/A   Overcast
5:52 AM 57.0 °F 37.9 °F 49% 29.57 in 10.0 mi West 6.9 mph - N/A   Overcast
6:52 AM 57.0 °F 37.9 °F 49% 29.57 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
7:34 AM 57.2 °F 42.8 °F 59% 29.58 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
7:52 AM 57.0 °F 45.0 °F 64% 29.58 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
8:52 AM 59.0 °F 46.0 °F 62% 29.59 in 10.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
9:52 AM 63.0 °F 44.1 °F 50% 29.57 in 10.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
10:52 AM 63.0 °F 48.9 °F 60% 29.58 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
11:52 AM 64.9 °F 43.0 °F 45% 29.57 in 10.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
12:52 PM 66.9 °F 42.1 °F 40% 29.56 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
1:16 PM 66.2 °F 39.2 °F 37% 29.56 in 10.0 mi WSW 11.5 mph 18.4 mph 0.00 in Rain Light Rain
1:41 PM 64.4 °F 41.0 °F 42% 29.57 in 10.0 mi West 8.1 mph - 0.00 in   Mostly Cloudy
1:52 PM 66.0 °F 43.0 °F 43% 29.57 in 10.0 mi SW 3.5 mph - 0.00 in   Mostly Cloudy
2:52 PM 70.0 °F 39.0 °F 32% 29.54 in 10.0 mi West 15.0 mph - N/A   Mostly Cloudy
3:52 PM 71.1 °F 37.9 °F 30% 29.53 in 10.0 mi WNW 16.1 mph 23.0 mph N/A   Scattered Clouds
4:52 PM 72.0 °F 39.0 °F 30% 29.55 in 10.0 mi West 11.5 mph 19.6 mph N/A   Mostly Cloudy
5:52 PM 69.1 °F 37.9 °F 32% 29.55 in 10.0 mi WNW 9.2 mph - N/A   Mostly Cloudy
6:14 PM 66.2 °F 41.0 °F 40% 29.58 in 9.0 mi WNW 32.2 mph 54.1 mph 0.00 in Rain Light Rain
6:28 PM 59.0 °F 48.2 °F 67% 29.60 in 10.0 mi WNW 20.7 mph 32.2 mph 0.00 in Rain Light Rain
6:52 PM 59.0 °F 46.0 °F 62% 29.60 in 10.0 mi WNW 10.4 mph - 0.00 in Rain Light Rain
7:52 PM 60.1 °F 44.1 °F 55% 29.61 in 10.0 mi West 5.8 mph - 0.00 in Rain Light Rain
8:52 PM 60.1 °F 44.1 °F 55% 29.62 in 10.0 mi West 5.8 mph - 0.00 in   Mostly Cloudy
9:52 PM 59.0 °F 46.0 °F 62% 29.66 in 10.0 mi NW 10.4 mph - N/A   Mostly Cloudy
10:52 PM 57.0 °F 45.0 °F 64% 29.66 in 10.0 mi West 3.5 mph - N/A   Scattered Clouds
11:52 PM 55.9 °F 45.0 °F 67% 29.66 in 10.0 mi Calm Calm - N/A   Partly Cloudy