Weather History for Knoxville, TN

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Tuesday, May 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 76 °F 68 °F  
Max Temperature 88 °F 79 °F 95 °F (1941)
Min Temperature 64 °F 58 °F 41 °F (1954)
Degree Days  
Heating Degree Days 0 1  
Month to date heating degree days 60 50  
Since 1 July heating degree days 3616 3625  
Cooling Degree Days 11 5  
Month to date cooling degree days 61 66  
Year to date cooling degree days 92 103  
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 65 °F    
Average Humidity 70    
Maximum Humidity 93    
Minimum Humidity 46    
Precipitation  
Precipitation 0.01 in 0.14 in 2.02 in (1901)
Month to date precipitation 3.35 3.16  
Year to date precipitation 31.25 20.09  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 3.8 6.5  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.96 in    
Wind  
Wind Speed 5 mph (WSW)    
Max Wind Speed 30 mph    
Max Gust Speed 40 mph    
Visibility 8 miles    
Events Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Astronomy

May. 21, 2013 Rise Set
Actual Time 6:26 AM EDT 8:39 PM EDT
Civil Twilight 5:57 AM EDT 9:08 PM EDT
Nautical Twilight 5:21 AM EDT 9:43 PM EDT
Astronomical Twilight 4:43 AM EDT 10:22 PM EDT
Moon 4:58 PM EDT (5/21) 3:45 AM EDT (5/21)
Length of Visible Light 15h 11m
Length of Day
14h 13m
Waxing Gibbous, 84% of the Moon is Illuminated
May 21
Waxing Gibbous
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 71.1 °F - 66.0 °F 84% 29.99 in 10.0 mi WSW 6.9 mph - N/A   Clear
1:53 AM 71.1 °F - 66.0 °F 84% 29.99 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
2:53 AM 71.1 °F - 66.0 °F 84% 29.98 in 10.0 mi SW 6.9 mph - N/A   Scattered Clouds
3:53 AM 69.1 °F - 64.9 °F 87% 29.96 in 10.0 mi WSW 4.6 mph - N/A   Clear
4:53 AM 68.0 °F - 64.9 °F 90% 29.97 in 8.0 mi West 3.5 mph - N/A   Clear
5:53 AM 66.9 °F - 64.9 °F 93% 29.97 in 6.0 mi Calm Calm - N/A   Scattered Clouds
6:08 AM 68.0 °F - 64.4 °F 88% 30.02 in 2.5 mi Calm Calm - N/A   Scattered Clouds
6:18 AM 66.2 °F - 64.4 °F 94% 30.02 in 3.0 mi Calm Calm - N/A   Scattered Clouds
6:53 AM 64.9 °F - 63.0 °F 93% 29.99 in 4.0 mi Calm Calm - N/A   Scattered Clouds
7:53 AM 69.1 °F - 66.0 °F 90% 30.01 in 3.0 mi Calm Calm - N/A   Mostly Cloudy
8:53 AM 70.0 °F - 66.0 °F 87% 30.03 in 7.0 mi SE 3.5 mph - N/A   Partly Cloudy
9:53 AM 73.9 °F - 68.0 °F 82% 30.03 in 9.0 mi Calm Calm - N/A   Scattered Clouds
10:53 AM 78.1 °F - 68.0 °F 71% 30.01 in 10.0 mi SW 5.8 mph - N/A   Mostly Cloudy
11:53 AM 79.0 °F - 68.0 °F 69% 30.00 in 10.0 mi SW 6.9 mph - N/A   Mostly Cloudy
12:53 PM 82.0 °F 84.5 °F 66.9 °F 60% 29.98 in 10.0 mi Variable 3.5 mph - N/A   Scattered Clouds
1:53 PM 84.9 °F 88.2 °F 68.0 °F 57% 29.96 in 10.0 mi WSW 9.2 mph - N/A   Scattered Clouds
2:53 PM 84.9 °F 87.1 °F 66.0 °F 53% 29.93 in 10.0 mi Variable 3.5 mph - N/A   Partly Cloudy
3:53 PM 87.1 °F 89.9 °F 66.9 °F 51% 29.90 in 10.0 mi WSW 9.2 mph - N/A   Partly Cloudy
4:53 PM 87.1 °F 88.9 °F 64.9 °F 48% 29.89 in 10.0 mi West 10.4 mph - N/A   Mostly Cloudy
5:50 PM 78.8 °F - 62.6 °F 57% 29.93 in 7.0 mi WNW 23.0 mph 35.7 mph N/A Thunderstorm Thunderstorm
5:53 PM 77.0 °F - 61.0 °F 58% 29.91 in 7.0 mi West 26.5 mph 35.7 mph N/A Thunderstorm Thunderstorm
6:28 PM 69.8 °F - 62.6 °F 78% 29.97 in 7.0 mi West 13.8 mph 29.9 mph 0.00 in Rain , Thunderstorm Light Thunderstorms and Rain
6:53 PM 68.0 °F - 63.0 °F 84% 29.93 in 7.0 mi East 10.4 mph - 0.01 in   Scattered Clouds
7:53 PM 66.9 °F - 63.0 °F 87% 29.93 in 10.0 mi ESE 8.1 mph - 0.00 in   Scattered Clouds
8:53 PM 66.9 °F - 63.0 °F 87% 29.93 in 10.0 mi NE 6.9 mph - N/A   Scattered Clouds
9:53 PM 68.0 °F - 62.1 °F 81% 29.93 in 10.0 mi Calm Calm - N/A   Partly Cloudy
10:53 PM 66.0 °F - 62.1 °F 87% 29.93 in 10.0 mi NE 3.5 mph - N/A   Clear
11:53 PM 66.9 °F - 62.1 °F 84% 29.94 in 10.0 mi Calm Calm - N/A   Mostly Cloudy