Weather History for San Juan, PR

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Sunday, March 17, 2013

  Actual Average Record
Temperature  
Mean Temperature 79 °F 79 °F  
Max Temperature 85 °F 85 °F 93 °F (1983)
Min Temperature 73 °F 73 °F 62 °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 14 14  
Month to date cooling degree days 233 232  
Year to date cooling degree days 1029 983  
Growing Degree Days 28 (Base 50)    
Moisture  
Dew Point 67 °F    
Average Humidity 69    
Maximum Humidity 85    
Minimum Humidity 47    
Precipitation  
Precipitation 0.12 in 0.05 in 2.56 in (1914)
Month to date precipitation 1.09 1.00  
Year to date precipitation 5.19 7.15  
Sea Level Pressure  
Sea Level Pressure 30.06 in    
Wind  
Wind Speed 10 mph (East)    
Max Wind Speed 22 mph    
Max Gust Speed 26 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

Mar. 17, 2013 Rise Set
Actual Time 6:30 AM AST 6:34 PM AST
Civil Twilight 6:08 AM AST 6:56 PM AST
Nautical Twilight 5:43 AM AST 7:21 PM AST
Astronomical Twilight 5:18 AM AST 7:46 PM AST
Moon 10:25 AM AST (3/17) 11:45 PM AST (3/17)
Length of Visible Light 12h 47m
Length of Day
12h 03m
Waxing Crescent, 31% of the Moon is Illuminated
Mar 17
Waxing Crescent
Mar 19
First Quarter
Mar 27
Full
Apr 3
Last Quarter
Apr 10
New

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 75.0 °F - 64.9 °F 71% 30.05 in 10.0 mi ENE 6.9 mph - 0.00 in   Scattered Clouds
1:56 AM 75.9 °F - 66.9 °F 74% 30.03 in 10.0 mi ENE 11.5 mph - N/A   Scattered Clouds
2:56 AM 73.9 °F - 68.0 °F 82% 30.01 in 10.0 mi East 3.5 mph - 0.01 in   Scattered Clouds
3:56 AM 73.9 °F - 68.0 °F 82% 30.01 in 10.0 mi Calm Calm - 0.01 in   Scattered Clouds
4:56 AM 73.0 °F - 68.0 °F 84% 30.02 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:56 AM 73.0 °F - 66.9 °F 81% 30.05 in 10.0 mi East 3.5 mph - N/A   Scattered Clouds
6:56 AM 73.9 °F - 66.9 °F 79% 30.07 in 10.0 mi SE 3.5 mph - N/A   Scattered Clouds
7:56 AM 75.0 °F - 68.0 °F 79% 30.09 in 10.0 mi SE 3.5 mph - 0.02 in   Scattered Clouds
8:56 AM 77.0 °F - 70.0 °F 79% 30.11 in 10.0 mi East 6.9 mph - 0.07 in   Scattered Clouds
9:56 AM 80.1 °F 82.9 °F 69.1 °F 69% 30.12 in 10.0 mi ENE 10.4 mph - N/A   Scattered Clouds
10:56 AM 81.0 °F 82.7 °F 64.9 °F 58% 30.10 in 10.0 mi East 10.4 mph - N/A   Scattered Clouds
11:56 AM 84.0 °F 87.8 °F 69.1 °F 61% 30.09 in 10.0 mi NE 13.8 mph 25.3 mph N/A   Partly Cloudy
12:56 PM 84.0 °F 87.0 °F 68.0 °F 58% 30.06 in 10.0 mi ENE 17.3 mph - N/A   Scattered Clouds
1:56 PM 84.0 °F 86.5 °F 66.9 °F 56% 30.04 in 10.0 mi ENE 16.1 mph 25.3 mph N/A   Partly Cloudy
2:56 PM 84.0 °F 87.0 °F 68.0 °F 58% 30.02 in 10.0 mi ENE 16.1 mph 23.0 mph N/A   Partly Cloudy
3:56 PM 82.9 °F 85.4 °F 66.9 °F 58% 30.01 in 10.0 mi ENE 19.6 mph 23.0 mph N/A   Partly Cloudy
4:56 PM 81.0 °F 83.3 °F 66.9 °F 62% 30.02 in 10.0 mi East 17.3 mph - N/A   Scattered Clouds
5:56 PM 79.0 °F - 66.9 °F 66% 30.04 in 10.0 mi ENE 15.0 mph 21.9 mph N/A   Scattered Clouds
6:56 PM 77.0 °F - 66.9 °F 71% 30.04 in 10.0 mi East 9.2 mph - N/A   Scattered Clouds
7:56 PM 77.0 °F - 66.9 °F 71% 30.06 in 10.0 mi East 12.7 mph 18.4 mph N/A   Scattered Clouds
8:56 PM 77.0 °F - 64.9 °F 66% 30.07 in 10.0 mi East 10.4 mph - N/A   Partly Cloudy
9:56 PM 75.9 °F - 64.9 °F 69% 30.08 in 10.0 mi ESE 6.9 mph - N/A   Partly Cloudy
10:56 PM 77.0 °F - 66.0 °F 69% 30.08 in 10.0 mi East 13.8 mph - N/A   Partly Cloudy
11:56 PM 73.9 °F - 69.1 °F 85% 30.08 in 10.0 mi East 8.1 mph - 0.01 in   Mostly Cloudy