Weather History for Raleigh-Durham Airport, NC

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Sunday, December 18, 2011

  Actual Average Record
Temperature  
Mean Temperature 38 °F 43 °F  
Max Temperature 49 °F 53 °F 77 °F (1984)
Min Temperature 27 °F 33 °F 10 °F (1973)
Degree Days  
Heating Degree Days 27 22  
Month to date heating degree days 310 363  
Since 1 July heating degree days 842 944  
Cooling Degree Days 0 0  
Month to date cooling degree days 1 0  
Year to date cooling degree days 2133 1728  
Moisture  
Dew Point 25 °F    
Average Humidity 64    
Maximum Humidity 92    
Minimum Humidity 36    
Precipitation  
Precipitation 0.00 in 0.10 in 1.22 in (1959)
Month to date precipitation 1.16 1.78  
Year to date precipitation 42.81 42.05  
Snow  
Snow 0.00 in 0.00 in 1.80 in (1945)
Month to date snowfall 0.0 0.2  
Since 1 July snowfall 0.0 0.3  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.31 in    
Wind  
Wind Speed 2 mph (NNE)    
Max Wind Speed 13 mph    
Max Gust Speed 22 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 18, 2011 Rise Set
Actual Time 7:19 AM EST 5:03 PM EST
Civil Twilight 6:51 AM EST 5:32 PM EST
Nautical Twilight 6:19 AM EST 6:04 PM EST
Astronomical Twilight 5:47 AM EST 6:35 PM EST
Moon 12:28 AM EST (12/18) 12:19 PM EST (12/18)
Length of Visible Light 10h 40m
Length of Day
9h 43m
Last Quarter, 42% of the Moon is Illuminated
Dec 18
Last Quarter
Dec 24
New
Jan 1
First Quarter
Jan 9
Full
Jan 16
Last Quarter

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 32.0 °F - 28.0 °F 85% 30.23 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
1:51 AM 30.9 °F 27.5 °F 28.0 °F 89% 30.23 in 7.0 mi NE 3.5 mph - N/A   Mostly Cloudy
2:51 AM 30.0 °F - 27.0 °F 88% 30.25 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
3:51 AM 28.9 °F 23.9 °F 26.1 °F 89% 30.25 in 9.0 mi SW 4.6 mph - N/A   Scattered Clouds
4:51 AM 28.9 °F - 26.1 °F 89% 30.26 in 8.0 mi Calm Calm - N/A   Partly Cloudy
5:51 AM 28.9 °F - 25.0 °F 85% 30.27 in 9.0 mi Calm Calm - N/A   Partly Cloudy
6:51 AM 28.4 °F - 24.8 °F 86% 30.28 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:51 AM 28.9 °F - 24.1 °F 82% 30.31 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:51 AM 33.1 °F - 28.0 °F 82% 30.33 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:51 AM 41.0 °F 38.0 °F 27.0 °F 57% 30.34 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
10:51 AM 45.0 °F 41.2 °F 25.0 °F 46% 30.36 in 10.0 mi Variable 6.9 mph 16.1 mph N/A   Partly Cloudy
11:51 AM 45.0 °F 40.1 °F 23.0 °F 42% 30.33 in 10.0 mi North 9.2 mph 18.4 mph N/A   Partly Cloudy
12:51 PM 46.9 °F - 21.9 °F 37% 30.29 in 10.0 mi Variable 4.6 mph - N/A   Partly Cloudy
1:51 PM 48.0 °F - 24.1 °F 39% 30.27 in 10.0 mi NNE 6.9 mph - N/A   Partly Cloudy
2:51 PM 48.9 °F - 24.1 °F 38% 30.27 in 10.0 mi Calm Calm - N/A   Partly Cloudy
3:51 PM 48.9 °F - 23.0 °F 36% 30.29 in 10.0 mi West 3.5 mph - N/A   Clear
4:51 PM 45.0 °F - 24.1 °F 44% 30.31 in 10.0 mi Calm Calm - N/A   Clear
5:51 PM 43.0 °F - 25.0 °F 49% 30.33 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:51 PM 37.0 °F - 26.1 °F 65% 30.35 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:51 PM 33.8 °F - 26.6 °F 75% 30.36 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:51 PM 34.0 °F 31.0 °F 25.0 °F 70% 30.36 in 10.0 mi ESE 3.5 mph - N/A   Clear
9:51 PM 36.0 °F - 25.0 °F 64% 30.35 in 10.0 mi Calm Calm - N/A   Clear
10:51 PM 35.1 °F - 25.0 °F 67% 30.36 in 10.0 mi Calm Calm - N/A   Clear
11:51 PM 34.0 °F - 25.0 °F 70% 30.35 in 10.0 mi Calm Calm - N/A   Clear