Weather History for San Juan, PR

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Saturday, December 8, 2012

  Actual Average Record
Temperature  
Mean Temperature 82 °F 79 °F  
Max Temperature 87 °F 84 °F 90 °F (1981)
Min Temperature 76 °F 74 °F 67 °F (1990)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 July heating degree days 0 0  
Cooling Degree Days 17 14  
Month to date cooling degree days 121 112  
Year to date cooling degree days 5826 5544  
Growing Degree Days 31 (Base 50)    
Moisture  
Dew Point 70 °F    
Average Humidity 66    
Maximum Humidity 82    
Minimum Humidity 50    
Precipitation  
Precipitation T in 0.17 in 1.59 in (1938)
Month to date precipitation 2.17 1.38  
Year to date precipitation 52.07 52.71  
Sea Level Pressure  
Sea Level Pressure 29.99 in    
Wind  
Wind Speed 8 mph (ESE)    
Max Wind Speed 20 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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Daily Weather History Graph

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Astronomy

Dec. 08, 2012 Rise Set
Actual Time 6:44 AM AST 5:47 PM AST
Civil Twilight 6:20 AM AST 6:11 PM AST
Nautical Twilight 5:53 AM AST 6:38 PM AST
Astronomical Twilight 5:26 AM AST 7:05 PM AST
Moon 1:40 AM AST (12/8) 1:44 PM AST (12/8)
Length of Visible Light 11h 50m
Length of Day
11h 03m
Waning Crescent, 29% of the Moon is Illuminated
Dec 8
Waning Crescent
Dec 13
New
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Hourly Weather History & Observations

Time (AST) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 77.0 °F - 66.9 °F 71% 29.96 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:56 AM 77.0 °F - 69.1 °F 76% 29.94 in 10.0 mi ESE 5.8 mph - N/A   Scattered Clouds
2:56 AM 77.0 °F - 70.0 °F 79% 29.94 in 10.0 mi SE 3.5 mph - N/A   Scattered Clouds
3:56 AM 78.1 °F - 71.1 °F 79% 29.94 in 10.0 mi East 4.6 mph - N/A   Scattered Clouds
4:56 AM 78.1 °F - 70.0 °F 76% 29.94 in 10.0 mi ESE 4.6 mph - N/A   Scattered Clouds
5:56 AM 77.0 °F - 71.1 °F 82% 29.97 in 10.0 mi Calm Calm - 0.00 in   Mostly Cloudy
6:56 AM 77.0 °F - 71.1 °F 82% 29.99 in 10.0 mi SSE 3.5 mph - N/A   Mostly Cloudy
7:56 AM 78.1 °F - 71.1 °F 79% 30.00 in 10.0 mi SE 3.5 mph - N/A   Scattered Clouds
8:56 AM 81.0 °F 84.4 °F 70.0 °F 69% 30.03 in 10.0 mi East 9.2 mph - N/A   Mostly Cloudy
9:56 AM 82.9 °F 87.0 °F 70.0 °F 65% 30.04 in 10.0 mi East 6.9 mph - N/A   Mostly Cloudy
10:56 AM 84.9 °F 88.2 °F 68.0 °F 57% 30.03 in 10.0 mi East 15.0 mph - N/A   Scattered Clouds
11:56 AM 87.1 °F 89.9 °F 66.9 °F 51% 30.00 in 10.0 mi East 16.1 mph - N/A   Scattered Clouds
12:56 PM 84.9 °F 88.2 °F 68.0 °F 57% 29.97 in 10.0 mi East 16.1 mph 23.0 mph N/A   Scattered Clouds
1:56 PM 86.0 °F 90.1 °F 69.1 °F 57% 29.96 in 10.0 mi East 17.3 mph - N/A   Scattered Clouds
2:56 PM 84.0 °F 88.4 °F 70.0 °F 63% 29.96 in 10.0 mi East 13.8 mph - N/A   Mostly Cloudy
3:56 PM 84.0 °F 89.0 °F 71.1 °F 65% 29.96 in 10.0 mi East 13.8 mph - N/A   Mostly Cloudy
4:56 PM 82.9 °F 86.5 °F 69.1 °F 63% 29.97 in 10.0 mi East 13.8 mph - N/A   Mostly Cloudy
5:56 PM 81.0 °F 84.4 °F 70.0 °F 69% 29.99 in 10.0 mi East 6.9 mph - N/A   Mostly Cloudy
6:56 PM 81.0 °F 84.9 °F 71.1 °F 72% 30.01 in 10.0 mi East 5.8 mph - N/A   Scattered Clouds
7:56 PM 80.1 °F 83.2 °F 70.0 °F 71% 30.03 in 10.0 mi ESE 5.8 mph - N/A   Partly Cloudy
8:56 PM 80.1 °F 82.9 °F 69.1 °F 69% 30.05 in 10.0 mi ESE 4.6 mph - N/A   Mostly Cloudy
9:56 PM 80.1 °F 82.9 °F 69.1 °F 69% 30.06 in 10.0 mi ESE 3.5 mph - N/A   Mostly Cloudy
10:56 PM 79.0 °F - 69.1 °F 72% 30.06 in 10.0 mi East 8.1 mph - N/A   Scattered Clouds
11:56 PM 78.1 °F - 70.0 °F 76% 30.05 in 10.0 mi East 3.5 mph - N/A   Scattered Clouds