Weather History for Key West, FL

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Monday, December 17, 2012

  Actual Average Record
Temperature  
Mean Temperature 77 °F 71 °F  
Max Temperature 81 °F 76 °F 84 °F (1956)
Min Temperature 73 °F 67 °F 51 °F (1952)
Degree Days  
Heating Degree Days 0 1  
Month to date heating degree days 0 1  
Since 1 July heating degree days 0 2  
Cooling Degree Days 12 7  
Month to date cooling degree days 178 131  
Year to date cooling degree days 4732 4664  
Growing Degree Days 27 (Base 50)    
Moisture  
Dew Point 69 °F    
Average Humidity 78    
Maximum Humidity 87    
Minimum Humidity 69    
Precipitation  
Precipitation 0.00 in 0.08 in 1.07 in (2006)
Month to date precipitation 0.66 1.33  
Year to date precipitation 46.99 38.94  
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 29.96 in    
Wind  
Wind Speed 7 mph (SSE)    
Max Wind Speed 14 mph    
Max Gust Speed 17 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 17, 2012 Rise Set
Actual Time 7:04 AM EST 5:42 PM EST
Civil Twilight 6:39 AM EST 6:06 PM EST
Nautical Twilight 6:11 AM EST 6:35 PM EST
Astronomical Twilight 5:43 AM EST 7:03 PM EST
Moon 10:37 AM EST (12/17) 10:33 PM EST (12/17)
Length of Visible Light 11h 27m
Length of Day
10h 37m
Waxing Crescent, 24% of the Moon is Illuminated
Dec 17
Waxing Crescent
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

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 75.9 °F - 66.0 °F 71% 29.97 in 10.0 mi SSE 8.1 mph - N/A   Clear
1:53 AM 75.9 °F - 66.0 °F 71% 29.98 in 10.0 mi SSE 6.9 mph - N/A   Clear
2:53 AM 75.9 °F - 66.9 °F 74% 29.98 in 10.0 mi SSE 4.6 mph - N/A   Partly Cloudy
3:53 AM 73.9 °F - 66.9 °F 79% 29.96 in 10.0 mi SSE 3.5 mph - N/A   Clear
4:53 AM 75.0 °F - 66.9 °F 76% 29.96 in 10.0 mi SSE 4.6 mph - N/A   Clear
5:53 AM 75.9 °F - 66.9 °F 74% 29.96 in 10.0 mi South 8.1 mph - N/A   Mostly Cloudy
6:53 AM 75.9 °F - 68.0 °F 76% 29.97 in 10.0 mi South 8.1 mph - N/A   Partly Cloudy
7:53 AM 75.9 °F - 69.1 °F 79% 29.97 in 10.0 mi SSE 10.4 mph - N/A   Partly Cloudy
8:53 AM 78.1 °F - 69.1 °F 74% 29.98 in 10.0 mi South 9.2 mph - N/A   Partly Cloudy
9:53 AM 78.1 °F - 69.1 °F 74% 29.99 in 10.0 mi South 10.4 mph - N/A   Partly Cloudy
10:53 AM 79.0 °F - 70.0 °F 74% 29.98 in 10.0 mi South 11.5 mph - N/A   Clear
11:53 AM 80.1 °F 83.2 °F 70.0 °F 71% 29.97 in 10.0 mi South 10.4 mph - N/A   Partly Cloudy
12:53 PM 80.1 °F 83.2 °F 70.0 °F 71% 29.94 in 10.0 mi South 10.4 mph - N/A   Partly Cloudy
1:53 PM 79.0 °F - 71.1 °F 77% 29.92 in 10.0 mi South 10.4 mph - N/A   Partly Cloudy
2:53 PM 79.0 °F - 70.0 °F 74% 29.92 in 10.0 mi South 9.2 mph - N/A   Clear
3:53 PM 79.0 °F - 70.0 °F 74% 29.93 in 10.0 mi SSW 6.9 mph - N/A   Clear
4:53 PM 78.1 °F - 70.0 °F 76% 29.94 in 10.0 mi SW 4.6 mph - N/A   Scattered Clouds
7:53 PM 77.0 °F - 71.1 °F 82% 29.98 in 10.0 mi Calm Calm - N/A   Overcast
8:53 PM 75.9 °F - 70.0 °F 82% 29.99 in 10.0 mi Calm Calm - N/A   Clear
9:53 PM 73.9 °F - 70.0 °F 87% 29.98 in 10.0 mi ESE 3.5 mph - N/A   Clear
10:53 PM 73.9 °F - 70.0 °F 87% 29.99 in 10.0 mi SE 3.5 mph - N/A   Clear
11:53 PM 75.0 °F - 70.0 °F 84% 29.97 in 10.0 mi ESE 4.6 mph - N/A   Clear