Weather History for San Juan, PR

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Friday, March 8, 2013

  Actual Average Record
Temperature  
Mean Temperature 78 °F 79 °F  
Max Temperature 83 °F 85 °F 89 °F (1984)
Min Temperature 73 °F 73 °F 63 °F (1957)
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 13 14  
Month to date cooling degree days 113 106  
Year to date cooling degree days 909 857  
Growing Degree Days 28 (Base 50)    
Moisture  
Dew Point 67 °F    
Average Humidity 66    
Maximum Humidity 87    
Minimum Humidity 45    
Precipitation  
Precipitation 0.21 in 0.06 in 1.34 in (1978)
Month to date precipitation 0.90 0.50  
Year to date precipitation 5.00 6.65  
Sea Level Pressure  
Sea Level Pressure 30.02 in    
Wind  
Wind Speed 3 mph (North)    
Max Wind Speed 12 mph    
Max Gust Speed 15 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Astronomy

Mar. 08, 2013 Rise Set
Actual Time 6:37 AM AST 6:32 PM AST
Civil Twilight 6:15 AM AST 6:53 PM AST
Nautical Twilight 5:50 AM AST 7:19 PM AST
Astronomical Twilight 5:25 AM AST 7:44 PM AST
Moon 3:56 AM AST (3/8) 3:42 PM AST (3/8)
Length of Visible Light 12h 38m
Length of Day
11h 54m
Waning Crescent, 12% of the Moon is Illuminated
Mar 8
Waning Crescent
Mar 11
New
Mar 19
First Quarter
Mar 27
Full
Apr 3
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 73.0 °F - 70.0 °F 90% 30.03 in 10.0 mi Calm Calm - 0.15 in Rain Light Rain
1:56 AM 73.9 °F - 70.0 °F 87% 30.00 in 10.0 mi Calm Calm - 0.01 in   Mostly Cloudy
2:56 AM 73.9 °F - 70.0 °F 87% 29.99 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:56 AM 73.9 °F - 70.0 °F 87% 29.99 in 10.0 mi Calm Calm - N/A   Scattered Clouds
4:56 AM 75.0 °F - 71.1 °F 87% 29.99 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:56 AM 75.0 °F - 71.1 °F 87% 30.00 in 10.0 mi Calm Calm - N/A   Scattered Clouds
6:56 AM 75.0 °F - 71.1 °F 87% 30.02 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:56 AM 75.9 °F - 71.1 °F 85% 30.04 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:56 AM 78.1 °F - 68.0 °F 71% 30.06 in 10.0 mi North 6.9 mph - N/A   Scattered Clouds
9:56 AM 80.1 °F 82.7 °F 68.0 °F 67% 30.07 in 10.0 mi North 6.9 mph - N/A   Scattered Clouds
10:56 AM 81.0 °F 83.8 °F 68.0 °F 65% 30.07 in 10.0 mi NNE 8.1 mph - N/A   Scattered Clouds
11:56 AM 81.0 °F 83.3 °F 66.9 °F 62% 30.05 in 10.0 mi North 8.1 mph - N/A   Scattered Clouds
12:56 PM 82.0 °F 84.5 °F 66.9 °F 60% 30.03 in 10.0 mi North 8.1 mph - N/A   Scattered Clouds
1:56 PM 80.1 °F 82.3 °F 66.9 °F 64% 30.02 in 10.0 mi NNE 6.9 mph - N/A   Scattered Clouds
2:56 PM 81.0 °F 83.3 °F 66.9 °F 62% 30.00 in 10.0 mi North 8.1 mph - N/A   Mostly Cloudy
3:56 PM 79.0 °F - 66.9 °F 66% 29.99 in 10.0 mi North 5.8 mph - N/A   Overcast
4:56 PM 78.1 °F - 66.0 °F 66% 30.00 in 10.0 mi North 5.8 mph - 0.02 in   Overcast
5:56 PM 78.1 °F - 66.0 °F 66% 30.01 in 10.0 mi Variable 3.5 mph - N/A   Overcast
6:56 PM 78.1 °F - 55.0 °F 45% 30.03 in 10.0 mi Calm Calm - 0.01 in   Mostly Cloudy
7:56 PM 77.0 °F - 60.1 °F 56% 30.03 in 10.0 mi SSE 3.5 mph - N/A   Overcast
8:56 PM 77.0 °F - 61.0 °F 58% 30.03 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:56 PM 75.9 °F - 63.0 °F 64% 30.04 in 10.0 mi Calm Calm - N/A   Partly Cloudy
10:56 PM 75.0 °F - 63.0 °F 66% 30.03 in 10.0 mi Calm Calm - 0.01 in   Partly Cloudy
11:56 PM 73.9 °F - 63.0 °F 68% 30.03 in 10.0 mi Calm Calm - 0.01 in   Partly Cloudy