Weather History for Roanoke, VA

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Monday, December 31, 2012

  Actual Average Record
Temperature  
Mean Temperature 37 °F 37 °F  
Max Temperature 45 °F 46 °F 72 °F (1992)
Min Temperature 28 °F 28 °F 3 °F (1917)
Degree Days  
Heating Degree Days 28 28  
Month to date heating degree days 625 806  
Since 1 July heating degree days 1512 1610  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1423 1208  
Moisture  
Dew Point 16 °F    
Average Humidity 45    
Maximum Humidity 63    
Minimum Humidity 27    
Precipitation  
Precipitation 0.00 in 0.08 in 2.50 in (1923)
Month to date precipitation 2.58 2.94  
Year to date precipitation 32.91 41.25  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.3  
Since 1 July snowfall 0.3  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.25 in    
Wind  
Wind Speed 9 mph (West)    
Max Wind Speed 17 mph    
Max Gust Speed 23 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 31, 2012 Rise Set
Actual Time 7:33 AM EST 5:12 PM EST
Civil Twilight 7:04 AM EST 5:41 PM EST
Nautical Twilight 6:32 AM EST 6:14 PM EST
Astronomical Twilight 6:00 AM EST 6:45 PM EST
Moon 8:36 PM EST (12/31) 9:18 AM EST (12/31)
Length of Visible Light 10h 36m
Length of Day
9h 38m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 31
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 30.9 °F 24.3 °F 16.0 °F 54% 30.38 in 10.0 mi West 6.9 mph - N/A   Clear
1:54 AM 30.0 °F 25.2 °F 16.0 °F 56% 30.37 in 10.0 mi NW 4.6 mph - N/A   Clear
2:54 AM 28.9 °F 21.1 °F 16.0 °F 58% 30.38 in 10.0 mi NNW 8.1 mph - N/A   Clear
3:54 AM 30.9 °F 23.5 °F 17.1 °F 57% 30.37 in 10.0 mi WNW 8.1 mph - N/A   Clear
4:54 AM 30.0 °F 21.7 °F 18.0 °F 61% 30.35 in 10.0 mi NNW 9.2 mph - N/A   Clear
5:54 AM 30.0 °F - 17.1 °F 59% 30.34 in 10.0 mi Calm Calm - N/A   Clear
6:54 AM 30.2 °F 26.7 °F 17.6 °F 60% 30.30 in 10.0 mi NNW 3.5 mph - N/A   Clear
7:54 AM 28.9 °F 21.1 °F 18.0 °F 64% 30.34 in 10.0 mi North 8.1 mph - N/A   Clear
8:54 AM 33.1 °F 24.4 °F 19.0 °F 56% 30.34 in 10.0 mi West 11.5 mph - N/A   Clear
9:54 AM 35.1 °F 26.9 °F 19.0 °F 52% 30.32 in 10.0 mi West 11.5 mph - N/A   Clear
10:54 AM 37.9 °F 30.9 °F 17.1 °F 43% 30.30 in 10.0 mi West 10.4 mph - N/A   Clear
11:54 AM 39.0 °F 34.0 °F 16.0 °F 39% 30.27 in 10.0 mi West 6.9 mph - N/A   Overcast
12:54 PM 41.0 °F 33.1 °F 15.1 °F 35% 30.21 in 10.0 mi West 15.0 mph 19.6 mph N/A   Mostly Cloudy
1:54 PM 43.0 °F 35.7 °F 15.1 °F 32% 30.19 in 10.0 mi West 15.0 mph - N/A   Partly Cloudy
2:54 PM 44.1 °F 37.1 °F 14.0 °F 30% 30.18 in 10.0 mi West 15.0 mph 21.9 mph N/A   Partly Cloudy
3:54 PM 44.1 °F 37.7 °F 15.1 °F 31% 30.18 in 10.0 mi WSW 12.7 mph - N/A   Overcast
4:54 PM 44.1 °F - 17.1 °F 34% 30.15 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:54 PM 43.0 °F - 17.1 °F 35% 30.16 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:54 PM 44.1 °F 39.0 °F 16.0 °F 32% 30.15 in 10.0 mi WSW 9.2 mph - N/A   Scattered Clouds
7:54 PM 45.0 °F 40.1 °F 14.0 °F 29% 30.14 in 10.0 mi West 9.2 mph - N/A   Scattered Clouds
8:54 PM 45.0 °F 40.1 °F 14.0 °F 29% 30.12 in 10.0 mi West 9.2 mph - N/A   Scattered Clouds
9:54 PM 44.6 °F 38.8 °F 14.0 °F 29% 30.10 in 10.0 mi West 11.5 mph - N/A   Partly Cloudy
10:54 PM 45.0 °F 38.5 °F 12.9 °F 27% 30.09 in 10.0 mi WSW 13.8 mph - N/A   Partly Cloudy
11:54 PM 44.1 °F 38.6 °F 14.0 °F 30% 30.09 in 10.0 mi West 10.4 mph - N/A   Clear