Weather History for Key West, FL

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Tuesday, December 18, 2012

  Actual Average Record
Temperature  
Mean Temperature 78 °F 71 °F  
Max Temperature 82 °F 76 °F 87 °F (1880)
Min Temperature 73 °F 67 °F 52 °F (1882)
Degree Days  
Heating Degree Days 0 1  
Month to date heating degree days 0 2  
Since 1 July heating degree days 0 3  
Cooling Degree Days 13 7  
Month to date cooling degree days 191 138  
Year to date cooling degree days 4745 4671  
Growing Degree Days 28 (Base 50)    
Moisture  
Dew Point 71 °F    
Average Humidity 77    
Maximum Humidity 87    
Minimum Humidity 67    
Precipitation  
Precipitation 0.00 in 0.07 in 3.28 in (2009)
Month to date precipitation 0.66 1.40  
Year to date precipitation 46.99 39.01  
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 29.99 in    
Wind  
Wind Speed 5 mph (North)    
Max Wind Speed 12 mph    
Max Gust Speed 13 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 18, 2012 Rise Set
Actual Time 7:05 AM EST 5:42 PM EST
Civil Twilight 6:40 AM EST 6:07 PM EST
Nautical Twilight 6:12 AM EST 6:35 PM EST
Astronomical Twilight 5:44 AM EST 7:03 PM EST
Moon 11:17 AM EST (12/18) 11:30 PM EST (12/18)
Length of Visible Light 11h 26m
Length of Day
10h 37m
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. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 75.9 °F - 70.0 °F 82% 29.96 in 10.0 mi SSE 4.6 mph - N/A   Clear
1:53 AM 75.9 °F - 71.1 °F 85% 29.95 in 10.0 mi SSE 5.8 mph - N/A   Clear
2:53 AM 77.0 °F - 71.1 °F 82% 29.94 in 10.0 mi South 4.6 mph - N/A   Clear
3:53 AM 77.0 °F - 71.1 °F 82% 29.94 in 10.0 mi South 6.9 mph - N/A   Clear
4:53 AM 77.0 °F - 72.0 °F 84% 29.95 in 10.0 mi South 4.6 mph - N/A   Overcast
5:53 AM 77.0 °F - 72.0 °F 84% 29.96 in 10.0 mi Calm Calm - N/A   Overcast
6:53 AM 75.0 °F - 72.0 °F 90% 29.98 in 10.0 mi Calm Calm - N/A   Overcast
7:23 AM 75.2 °F - 71.6 °F 89% 29.99 in 10.0 mi North 3.5 mph - N/A   Overcast
7:53 AM 75.0 °F - 72.0 °F 90% 29.99 in 10.0 mi NNE 3.5 mph - N/A   Overcast
8:08 AM 75.2 °F - 71.6 °F 89% 30.00 in 10.0 mi Calm Calm - N/A   Overcast
8:53 AM 78.1 °F - 71.1 °F 79% 30.01 in 10.0 mi Calm Calm - N/A   Overcast
9:53 AM 78.1 °F - 72.0 °F 81% 30.02 in 10.0 mi SE 4.6 mph - N/A   Partly Cloudy
10:53 AM 79.0 °F - 73.0 °F 82% 30.03 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
11:44 AM 80.6 °F 84.6 °F 71.6 °F 74% 30.02 in 10.0 mi North 5.8 mph - N/A   Mostly Cloudy
11:53 AM 80.1 °F 83.6 °F 71.1 °F 74% 30.01 in 10.0 mi North 4.6 mph - N/A   Mostly Cloudy
12:53 PM 82.0 °F 86.7 °F 72.0 °F 71% 29.99 in 10.0 mi North 8.1 mph - N/A   Scattered Clouds
1:20 PM 82.4 °F 87.2 °F 71.6 °F 70% 29.98 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
1:30 PM 80.6 °F 84.6 °F 71.6 °F 74% 29.98 in 10.0 mi NW 5.8 mph - N/A   Partly Cloudy
1:53 PM 82.0 °F 86.7 °F 72.0 °F 71% 29.97 in 10.0 mi North 8.1 mph - N/A   Partly Cloudy
2:53 PM 80.1 °F 83.6 °F 71.1 °F 74% 29.97 in 10.0 mi North 10.4 mph - N/A   Clear
3:53 PM 80.1 °F 82.7 °F 68.0 °F 67% 29.97 in 10.0 mi North 9.2 mph - N/A   Clear
4:53 PM 79.0 °F - 69.1 °F 72% 29.99 in 10.0 mi North 8.1 mph - N/A   Scattered Clouds
5:53 PM 75.9 °F - 68.0 °F 76% 29.99 in 10.0 mi North 8.1 mph - N/A   Clear
6:53 PM 75.0 °F - 70.0 °F 84% 30.00 in 10.0 mi North 3.5 mph - N/A   Clear
7:53 PM 75.0 °F - 70.0 °F 84% 30.01 in 10.0 mi North 5.8 mph - N/A   Clear
8:53 PM 73.9 °F - 68.0 °F 82% 30.03 in 10.0 mi NNE 4.6 mph - N/A   Clear
9:53 PM 73.9 °F - 68.0 °F 82% 30.03 in 10.0 mi NNE 5.8 mph - N/A   Clear
10:53 PM 73.9 °F - 68.0 °F 82% 30.04 in 10.0 mi NNE 5.8 mph - N/A   Clear
11:53 PM 73.0 °F - 69.1 °F 87% 30.03 in 10.0 mi Calm Calm - N/A   Clear