Knoxville, TN

9:38 PM EDT on May 22, 2018 (GMT -0400)
McGhee Tyson

Weather History for KTYS - December, 2012

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Tuesday, December 18, 2012

  Actual Average Record
Temperature  
Mean Temperature 47 °F 40 °F  
Max Temperature 54 °F 49 °F 73 °F (1924)
Min Temperature 40 °F 31 °F 7 °F (1875)
Degree Days  
Heating Degree Days 18 25  
Month to date heating degree days 250 415  
Since 1 July heating degree days 1028 1096  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1725 1526  
Moisture  
Dew Point 37 °F    
Average Humidity 69    
Maximum Humidity 93    
Minimum Humidity 45    
Precipitation  
Precipitation 0.00 in 0.14 in 1.74 in (2009)
Month to date precipitation 2.92 2.72  
Year to date precipitation 50.38 46.08  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.3  
Since 1 July snowfall 0.0 0.3  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.87 in    
Wind  
Wind Speed 8 mph (SW)    
Max Wind Speed 16 mph    
Max Gust Speed 21 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Dec. 18, 2012 Rise Set
Actual Time 7:40 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 11:30 AM EST (12/18) 11:38 PM EST (12/18)
Length of Visible Light 10h 41m
Length of Day
9h 44m
Waxing Crescent, 34% of the Moon is Illuminated
Dec 18
Waxing Crescent
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

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 51.1 °F - 48.0 °F 89% 29.68 in 10.0 mi West 8.1 mph - N/A   Overcast
1:53 AM 51.1 °F - 48.0 °F 89% 29.69 in 10.0 mi SW 6.9 mph - N/A   Overcast
2:53 AM 48.9 °F - 46.9 °F 93% 29.72 in 10.0 mi SW 5.8 mph - N/A   Overcast
3:01 AM 48.2 °F - 46.4 °F 93% 29.73 in 10.0 mi WSW 6.9 mph - N/A   Mostly Cloudy
3:53 AM 50.0 °F - 46.0 °F 86% 29.74 in 10.0 mi WSW 8.1 mph - N/A   Overcast
4:02 AM 50.0 °F - 46.4 °F 87% 29.75 in 10.0 mi West 11.5 mph - N/A   Overcast
4:21 AM 48.2 °F - 44.6 °F 87% 29.76 in 10.0 mi WSW 11.5 mph - N/A   Overcast
4:53 AM 45.0 °F 40.6 °F 42.1 °F 90% 29.77 in 10.0 mi SW 8.1 mph - N/A   Partly Cloudy
5:53 AM 44.1 °F 39.0 °F 37.9 °F 79% 29.82 in 10.0 mi WSW 9.2 mph - N/A   Scattered Clouds
6:53 AM 44.1 °F 38.6 °F 37.0 °F 76% 29.85 in 10.0 mi WSW 10.4 mph - N/A   Mostly Cloudy
7:53 AM 44.1 °F 39.5 °F 37.9 °F 79% 29.88 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
8:53 AM 46.0 °F 43.1 °F 37.9 °F 73% 29.91 in 10.0 mi SW 5.8 mph - N/A   Mostly Cloudy
9:26 AM 46.4 °F 40.7 °F 37.4 °F 71% 29.91 in 10.0 mi WSW 12.7 mph - N/A   Scattered Clouds
9:53 AM 46.9 °F - 37.0 °F 68% 29.92 in 10.0 mi WSW 11.5 mph - N/A   Scattered Clouds
10:53 AM 48.9 °F - 34.0 °F 56% 29.95 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds
11:53 AM 50.0 °F - 34.0 °F 54% 29.95 in 10.0 mi West 10.4 mph - N/A   Scattered Clouds
12:53 PM 51.1 °F - 35.1 °F 54% 29.92 in 10.0 mi SW 6.9 mph - N/A   Partly Cloudy
1:53 PM 52.0 °F - 36.0 °F 54% 29.91 in 10.0 mi SW 8.1 mph - N/A   Partly Cloudy
2:53 PM 53.1 °F - 33.1 °F 47% 29.91 in 10.0 mi SW 9.2 mph - N/A   Clear
3:53 PM 53.1 °F - 32.0 °F 45% 29.93 in 10.0 mi SW 11.5 mph - N/A   Clear
4:53 PM 50.0 °F - 33.1 °F 52% 29.93 in 10.0 mi SSW 9.2 mph - N/A   Clear
5:53 PM 46.9 °F - 32.0 °F 56% 29.93 in 10.0 mi South 4.6 mph - N/A   Clear
6:53 PM 46.0 °F 43.9 °F 32.0 °F 58% 29.94 in 10.0 mi South 4.6 mph - N/A   Clear
7:53 PM 45.0 °F 41.8 °F 32.0 °F 60% 29.94 in 10.0 mi SW 5.8 mph - N/A   Clear
8:53 PM 42.1 °F 37.7 °F 30.9 °F 65% 29.94 in 10.0 mi SSW 6.9 mph - N/A   Clear
9:53 PM 41.0 °F 37.1 °F 30.0 °F 65% 29.94 in 10.0 mi SSW 5.8 mph - N/A   Clear
10:53 PM 42.1 °F 36.1 °F 30.0 °F 62% 29.95 in 10.0 mi WSW 10.4 mph - N/A   Clear
11:53 PM 39.9 °F 35.1 °F 30.0 °F 68% 29.96 in 10.0 mi SW 6.9 mph - N/A   Clear