Weather History for Marathon, FL

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Tuesday, December 20, 2011

  Actual Average Record
Temperature  
Mean Temperature 77 °F 71 °F  
Max Temperature 80 °F 76 °F 91 °F (1997)
Min Temperature 73 °F 66 °F 51 °F (1996)
Degree Days  
Heating Degree Days 0 1  
Month to date heating degree days 1 13  
Since 1 July heating degree days 1 14  
Cooling Degree Days 12 7  
Month to date cooling degree days 200 162  
Year to date cooling degree days 5341 4926  
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 64 °F    
Average Humidity 68    
Maximum Humidity 74    
Minimum Humidity 62    
Precipitation  
Precipitation 0.00 in 0.07 in 0.04 in (2006)
Month to date precipitation 0.17 1.35  
Year to date precipitation 35.98 45.50  
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 30.13 in    
Wind  
Wind Speed 11 mph (ESE)    
Max Wind Speed 16 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 20, 2011 Rise Set
Actual Time 7:03 AM EST 5:39 PM EST
Civil Twilight 6:38 AM EST 6:04 PM EST
Nautical Twilight 6:10 AM EST 6:33 PM EST
Astronomical Twilight 5:42 AM EST 7:01 PM EST
Moon 2:37 AM EST (12/20) 2:03 PM EST (12/20)
Length of Visible Light 11h 26m
Length of Day
10h 36m
Waning Crescent, 21% of the Moon is Illuminated
Dec 20
Waning Crescent
Dec 24
New
Jan 1
First Quarter
Jan 9
Full
Jan 16
Last 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 73.0 °F - 63.0 °F 71% 30.15 in 10.0 mi East 11.5 mph 18.4 mph N/A   Clear
1:53 AM 73.0 °F - 63.0 °F 71% 30.14 in 10.0 mi ESE 11.5 mph 20.7 mph N/A   Scattered Clouds
2:53 AM 73.0 °F - 63.0 °F 71% 30.12 in 10.0 mi East 9.2 mph 18.4 mph N/A   Partly Cloudy
3:53 AM 73.0 °F - 63.0 °F 71% 30.12 in 10.0 mi East 9.2 mph 18.4 mph N/A   Overcast
4:53 AM 73.0 °F - 64.0 °F 73% 30.11 in 10.0 mi East 8.1 mph - N/A   Mostly Cloudy
5:53 AM 73.0 °F - 63.0 °F 71% 30.12 in 10.0 mi ESE 13.8 mph 20.7 mph N/A   Mostly Cloudy
7:53 AM 73.9 °F - 64.0 °F 71% 30.14 in 10.0 mi ESE 10.4 mph 19.6 mph N/A   Overcast
8:53 AM 75.0 °F - 64.9 °F 71% 30.16 in 10.0 mi ESE 11.5 mph 19.6 mph N/A   Overcast
9:53 AM 75.9 °F - 66.0 °F 71% 30.18 in 10.0 mi ESE 9.2 mph 18.4 mph N/A   Overcast
10:53 AM 79.0 °F - 66.0 °F 64% 30.17 in 10.0 mi ESE 10.4 mph 19.6 mph N/A   Mostly Cloudy
11:53 AM 80.1 °F 82.3 °F 66.9 °F 64% 30.15 in 10.0 mi ESE 10.4 mph 20.7 mph N/A   Clear
12:53 PM 79.0 °F - 66.0 °F 64% 30.12 in 10.0 mi ESE 13.8 mph 21.9 mph N/A   Partly Cloudy
1:53 PM 79.0 °F - 64.9 °F 62% 30.09 in 10.0 mi ESE 9.2 mph 19.6 mph N/A   Clear
2:53 PM 77.0 °F - 66.0 °F 69% 30.08 in 10.0 mi ESE 12.7 mph 19.6 mph N/A   Clear
3:53 PM 78.1 °F - 66.0 °F 66% 30.09 in 10.0 mi ESE 11.5 mph 19.6 mph N/A   Clear
4:53 PM 75.9 °F - 64.0 °F 67% 30.09 in 10.0 mi ESE 11.5 mph 19.6 mph N/A   Clear
5:53 PM 75.0 °F - 63.0 °F 66% 30.09 in 10.0 mi ESE 10.4 mph 16.1 mph N/A   Clear
6:53 PM 73.9 °F - 64.9 °F 73% 30.11 in 10.0 mi East 10.4 mph 17.3 mph N/A   Partly Cloudy
7:53 PM 75.0 °F - 63.0 °F 66% 30.12 in 10.0 mi East 9.2 mph 16.1 mph N/A   Clear
8:53 PM 75.0 °F - 63.0 °F 66% 30.13 in 10.0 mi East 8.1 mph 17.3 mph N/A   Partly Cloudy
9:53 PM 73.9 °F - 64.0 °F 71% 30.13 in 10.0 mi East 10.4 mph 18.4 mph N/A   Partly Cloudy
10:53 PM 75.0 °F - 64.0 °F 69% 30.14 in 10.0 mi ESE 11.5 mph 19.6 mph N/A   Partly Cloudy
11:53 PM 73.9 °F - 63.0 °F 68% 30.13 in 10.0 mi ESE 11.5 mph 20.7 mph N/A   Partly Cloudy