Weather History for Key West, FL

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Thursday, December 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 78 °F 71 °F  
Max Temperature 80 °F 76 °F 84 °F (1986)
Min Temperature 76 °F 66 °F 50 °F (1981)
Degree Days  
Heating Degree Days 0 1  
Month to date heating degree days 0 4  
Since 1 July heating degree days 0 5  
Cooling Degree Days 13 7  
Month to date cooling degree days 214 152  
Year to date cooling degree days 4768 4685  
Growing Degree Days 28 (Base 50)    
Moisture  
Dew Point 67 °F    
Average Humidity 67    
Maximum Humidity 76    
Minimum Humidity 58    
Precipitation  
Precipitation 0.00 in 0.08 in 2.50 in (1973)
Month to date precipitation 0.66 1.55  
Year to date precipitation 46.99 39.16  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Since 1 July snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.04 in    
Wind  
Wind Speed 10 mph (SE)    
Max Wind Speed 17 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. 20, 2012 Rise Set
Actual Time 7:06 AM EST 5:43 PM EST
Civil Twilight 6:41 AM EST 6:08 PM EST
Nautical Twilight 6:13 AM EST 6:36 PM EST
Astronomical Twilight 5:45 AM EST 7:04 PM EST
Moon 12:31 PM EST (12/20) 12:25 AM EST (12/20)
Length of Visible Light 11h 26m
Length of Day
10h 36m
First Quarter, 55% of the Moon is Illuminated
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Hourly Weather History & Observations

Time (EST) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 77.0 °F - 68.0 °F 74% 30.05 in 10.0 mi ESE 15.0 mph - N/A   Clear
1:53 AM 77.0 °F - 68.0 °F 74% 30.04 in 10.0 mi SE 12.7 mph - N/A   Clear
2:53 AM 77.0 °F - 66.9 °F 71% 30.04 in 10.0 mi SE 12.7 mph - N/A   Partly Cloudy
3:53 AM 75.9 °F - 66.0 °F 71% 30.04 in 10.0 mi ESE 12.7 mph - N/A   Partly Cloudy
4:53 AM 75.9 °F - 66.0 °F 71% 30.04 in 10.0 mi ESE 12.7 mph - N/A   Partly Cloudy
5:53 AM 75.9 °F - 66.0 °F 71% 30.04 in 10.0 mi ESE 12.7 mph - N/A   Clear
6:53 AM 75.9 °F - 66.9 °F 74% 30.05 in 10.0 mi ESE 11.5 mph - N/A   Clear
7:53 AM 75.9 °F - 66.9 °F 74% 30.06 in 10.0 mi ESE 11.5 mph - N/A   Clear
8:53 AM 78.1 °F - 69.1 °F 74% 30.07 in 10.0 mi SE 11.5 mph - N/A   Partly Cloudy
9:53 AM 78.1 °F - 66.9 °F 68% 30.08 in 10.0 mi SE 12.7 mph - N/A   Partly Cloudy
10:53 AM 79.0 °F - 66.0 °F 64% 30.08 in 10.0 mi ESE 11.5 mph - N/A   Partly Cloudy
11:53 AM 80.1 °F 81.9 °F 64.9 °F 60% 30.08 in 10.0 mi SE 9.2 mph - N/A   Clear
12:53 PM 80.1 °F 82.1 °F 66.0 °F 62% 30.05 in 10.0 mi Variable 6.9 mph - N/A   Clear
1:53 PM 80.1 °F 82.1 °F 66.0 °F 62% 30.02 in 10.0 mi SE 10.4 mph - N/A   Clear
2:53 PM 80.1 °F 82.1 °F 66.0 °F 62% 30.01 in 10.0 mi SE 9.2 mph - N/A   Clear
3:53 PM 79.0 °F - 66.0 °F 64% 29.99 in 10.0 mi SE 10.4 mph - N/A   Clear
4:53 PM 78.1 °F - 66.0 °F 66% 29.99 in 10.0 mi SSE 9.2 mph - N/A   Clear
5:53 PM 78.1 °F - 66.0 °F 66% 30.00 in 10.0 mi SSE 8.1 mph - N/A   Partly Cloudy
6:53 PM 77.0 °F - 66.0 °F 69% 30.03 in 10.0 mi SSE 6.9 mph - N/A   Partly Cloudy
7:53 PM 77.0 °F - 66.9 °F 71% 30.03 in 10.0 mi SSE 8.1 mph - N/A   Clear
8:53 PM 77.0 °F - 68.0 °F 74% 30.03 in 10.0 mi South 11.5 mph - N/A   Clear
9:53 PM 77.0 °F - 69.1 °F 76% 30.04 in 10.0 mi South 9.2 mph - N/A   Clear
10:53 PM 77.0 °F - 70.0 °F 79% 30.04 in 10.0 mi South 8.1 mph - N/A   Scattered Clouds
11:53 PM 77.0 °F - 70.0 °F 79% 30.05 in 10.0 mi SSW 6.9 mph - N/A   Scattered Clouds