Weather History for Tri-Cities, TN

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Monday, December 31, 2012

  Actual Average Record
Temperature  
Mean Temperature 30 °F 35 °F  
Max Temperature 38 °F 45 °F 74 °F (1951)
Min Temperature 21 °F 25 °F 5 °F (1983)
Degree Days  
Heating Degree Days 35 30  
Month to date heating degree days 687 844  
Since 1 July heating degree days 1667 1729  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1191 981  
Moisture  
Dew Point 25 °F    
Average Humidity 76    
Maximum Humidity 92    
Minimum Humidity 59    
Precipitation  
Precipitation T in 0.10 in 1.51 in (1975)
Month to date precipitation 4.00 3.37  
Year to date precipitation 46.15 41.01  
Snow  
Snow 0.00 in 0.10 in - ()
Month to date snowfall 0.6 2.4  
Since 1 July snowfall 0.6 2.7  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.27 in    
Wind  
Wind Speed 0 mph (SSE)    
Max Wind Speed 6 mph    
Max Gust Speed 6 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 31, 2012 Rise Set
Actual Time 7:41 AM EST 5:24 PM EST
Civil Twilight 7:12 AM EST 5:53 PM EST
Nautical Twilight 6:40 AM EST 6:25 PM EST
Astronomical Twilight 6:09 AM EST 6:56 PM EST
Moon 8:47 PM EST (12/31) 9:27 AM EST (12/31)
Length of Visible Light 10h 40m
Length of Day
9h 43m
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
12:53 AM 23.0 °F - 19.9 °F 88% 30.37 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
1:53 AM 23.0 °F - 19.9 °F 88% 30.36 in 9.0 mi Calm Calm - N/A   Scattered Clouds
2:53 AM 21.9 °F - 19.9 °F 92% 30.37 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:53 AM 23.0 °F - 19.9 °F 88% 30.36 in 8.0 mi Calm Calm - N/A   Scattered Clouds
4:53 AM 23.0 °F - 19.9 °F 88% 30.35 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
5:53 AM 24.1 °F - 21.9 °F 91% 30.34 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:53 AM 24.1 °F - 21.0 °F 88% 30.35 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:53 AM 24.1 °F - 21.0 °F 88% 30.37 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:53 AM 26.1 °F - 23.0 °F 88% 30.35 in 10.0 mi Calm Calm - N/A   Overcast
9:53 AM 28.0 °F - 23.0 °F 81% 30.35 in 7.0 mi Calm Calm - N/A   Overcast
10:53 AM 30.9 °F - 25.0 °F 79% 30.35 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
11:53 AM 33.1 °F - 26.1 °F 75% 30.32 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:53 PM 36.0 °F 33.3 °F 25.0 °F 64% 30.26 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
1:53 PM 37.0 °F - 25.0 °F 62% 30.24 in 10.0 mi Calm Calm - N/A   Overcast
2:53 PM 37.9 °F - 26.1 °F 62% 30.23 in 10.0 mi Calm Calm - N/A   Overcast
3:53 PM 37.0 °F 34.5 °F 26.1 °F 65% 30.21 in 10.0 mi ESE 3.5 mph - N/A   Overcast
4:53 PM 37.9 °F - 27.0 °F 65% 30.23 in 10.0 mi Calm Calm - N/A   Overcast
5:53 PM 37.0 °F - 28.0 °F 70% 30.22 in 10.0 mi Calm Calm - N/A   Overcast
6:53 PM 37.0 °F - 28.9 °F 73% 30.18 in 10.0 mi Calm Calm - N/A   Overcast
7:53 PM 37.0 °F - 28.9 °F 73% 30.17 in 10.0 mi Calm Calm - N/A   Overcast
8:53 PM 36.0 °F - 30.0 °F 79% 30.15 in 10.0 mi Calm Calm - N/A   Overcast
9:53 PM 37.0 °F - 30.0 °F 76% 30.15 in 10.0 mi Calm Calm - N/A   Overcast
10:53 PM 37.0 °F - 30.0 °F 76% 30.14 in 10.0 mi Calm Calm - N/A   Overcast
11:53 PM 37.0 °F - 30.0 °F 76% 30.13 in 10.0 mi Calm Calm - 0.00 in   Overcast