Weather History for KIAD - January, 2013

Change the Weather History Date:

Sunday, January 13, 2013

  Actual Average Record
Temperature  
Mean Temperature 50 °F 33 °F  
Max Temperature 57 °F 42 °F 69 °F (2005)
Min Temperature 43 °F 24 °F -3 °F (1977)
Degree Days  
Heating Degree Days 15 32  
Month to date heating degree days 344 416  
Since 1 July heating degree days 2032 2214  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 50 °F    
Average Humidity 96    
Maximum Humidity 100    
Minimum Humidity 92    
Precipitation  
Precipitation 0.01 in 0.08 in 1.03 in (1964)
Month to date precipitation 0.05 1.07  
Year to date precipitation 0.05 1.07  
Snow  
Snow 0.00 in 0.30 in 6.00 in (1964)
Month to date snowfall T 2.5  
Since 1 July snowfall 2.2 6.5  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 4 mph (SSE)    
Max Wind Speed 12 mph    
Max Gust Speed 17 mph    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport or City:

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

Jan. 13, 2013 Rise Set
Actual Time 7:27 AM EST 5:10 PM EST
Civil Twilight 6:58 AM EST 5:39 PM EST
Nautical Twilight 6:25 AM EST 6:12 PM EST
Astronomical Twilight 5:53 AM EST 6:44 PM EST
Moon 8:26 AM EST (1/13) 7:44 PM EST (1/13)
Length of Visible Light 10h 41m
Length of Day
9h 42m
Waxing Crescent, 5% of the Moon is Illuminated
Jan 13
Waxing Crescent
Jan 18
First Quarter
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
1:52 AM 43.0 °F 40.3 °F 43.0 °F 100% 30.13 in 0.1 mi SSE 4.6 mph - N/A Fog Fog
2:52 AM 44.1 °F - 43.0 °F 96% 30.12 in 0.2 mi Calm Calm - N/A Fog Fog
3:52 AM 44.1 °F - 44.1 °F 100% 30.11 in 0.2 mi Calm Calm - N/A Fog Fog
4:52 AM 44.1 °F - 44.1 °F 100% 30.07 in 0.5 mi Calm Calm - N/A Fog Fog
5:52 AM 45.0 °F 41.8 °F 45.0 °F 100% 30.08 in 0.5 mi South 5.8 mph - N/A Fog Fog
6:52 AM 45.0 °F 43.5 °F 45.0 °F 100% 30.08 in 0.1 mi SSE 3.5 mph - 0.00 in Fog Light Drizzle
7:52 AM 46.0 °F 43.9 °F 46.0 °F 100% 30.08 in 0.1 mi South 4.6 mph - 0.00 in Fog Light Drizzle
8:52 AM 46.9 °F - 46.9 °F 100% 30.09 in 0.1 mi South 10.4 mph - 0.00 in Fog Light Drizzle
9:52 AM 48.0 °F - 46.9 °F 96% 30.13 in 0.1 mi WNW 6.9 mph - 0.00 in Fog Light Drizzle
10:52 AM 48.9 °F - 48.9 °F 100% 30.10 in 0.1 mi SSE 4.6 mph - 0.01 in Fog Light Drizzle
11:49 AM 51.8 °F - 51.8 °F 100% 30.06 in 0.2 mi SE 4.6 mph - 0.00 in Fog Light Drizzle
11:52 AM 51.8 °F - 51.8 °F 100% 30.06 in 0.2 mi SE 4.6 mph - N/A Fog Light Drizzle
12:52 PM 52.0 °F - 52.0 °F 100% 30.04 in 0.2 mi SSE 3.5 mph - 0.00 in Fog Light Drizzle
1:52 PM 53.1 °F - 53.1 °F 100% 30.02 in 0.2 mi SE 3.5 mph - 0.00 in Fog Light Drizzle
2:52 PM 53.1 °F - 53.1 °F 100% 30.03 in 0.2 mi SSE 4.6 mph - 0.00 in Fog Fog
3:52 PM 53.6 °F - 53.6 °F 100% 30.02 in 0.2 mi SSE 5.8 mph - N/A   Overcast
4:52 PM 54.0 °F - 54.0 °F 100% 30.03 in 0.2 mi Calm Calm - 0.00 in Fog Light Drizzle
5:52 PM 54.0 °F - 54.0 °F 100% 30.03 in 0.2 mi South 4.6 mph - 0.00 in Fog Light Drizzle
6:52 PM 54.0 °F - 54.0 °F 100% 30.02 in 0.2 mi SE 4.6 mph - 0.00 in Fog Fog
7:52 PM 55.0 °F - 54.0 °F 96% 30.00 in 0.2 mi SSE 3.5 mph - N/A Fog Fog
8:52 PM 55.9 °F - 55.0 °F 97% 29.99 in 0.2 mi South 6.9 mph - N/A Fog Fog
9:43 PM 55.4 °F - 55.4 °F 100% 29.97 in 0.1 mi South 4.6 mph - N/A Fog Fog
9:52 PM 55.9 °F - 55.9 °F 100% 29.97 in 0.1 mi South 6.9 mph - N/A Fog Fog
10:52 PM 55.9 °F - 55.9 °F 100% 29.98 in 0.2 mi South 6.9 mph - N/A Fog Fog
11:52 PM 55.9 °F - 55.9 °F 100% 29.97 in 0.2 mi Calm Calm - N/A Fog Fog