Weather History for San Juan, PR

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Tuesday, August 28, 2012

  Actual Average Record
Temperature  
Mean Temperature 84 °F 84 °F  
Max Temperature 89 °F 89 °F 93 °F (1991)
Min Temperature 78 °F 78 °F 71 °F (1959)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 0 0  
Since 1 July heating degree days 0 0  
Cooling Degree Days 19 19  
Month to date cooling degree days 525 532  
Year to date cooling degree days 3922 3816  
Since 1 June cooling degree days 1741 1651  
Growing Degree Days 34 (Base 50)    
Moisture  
Dew Point 73 °F    
Average Humidity 70    
Maximum Humidity 85    
Minimum Humidity 55    
Precipitation  
Precipitation 0.00 in 0.21 in 2.38 in (1986)
Month to date precipitation 7.37 4.83  
Year to date precipitation 39.90 32.99  
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 9 mph (East)    
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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Astronomy

Aug. 28, 2012 Rise Set
Actual Time 6:08 AM AST 6:41 PM AST
Civil Twilight 5:46 AM AST 7:03 PM AST
Nautical Twilight 5:20 AM AST 7:29 PM AST
Astronomical Twilight 4:54 AM AST 7:55 PM AST
Moon 4:27 PM AST 3:12 AM AST
Length of Visible Light 13h 16m
Length of Day
12h 32m
Waxing Gibbous, 90% of the Moon is Illuminated
Aug 28
Waxing Gibbous
Aug 31
Full
Sep 8
Last Quarter
Sep 15
New
Sep 22
First 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 80.1 °F 84.5 °F 73.9 °F 81% 30.07 in 10.0 mi ESE 5.8 mph - N/A   Partly Cloudy
1:56 AM 79.0 °F - 73.0 °F 82% 30.05 in 10.0 mi East 8.1 mph - N/A   Partly Cloudy
2:56 AM 79.0 °F - 73.0 °F 82% 30.04 in 10.0 mi ESE 4.6 mph - N/A   Partly Cloudy
3:56 AM 78.1 °F - 72.0 °F 81% 30.02 in 10.0 mi East 5.8 mph - N/A   Partly Cloudy
4:56 AM 79.0 °F - 72.0 °F 79% 30.04 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:56 AM 78.1 °F - 72.0 °F 81% 30.05 in 10.0 mi Calm Calm - N/A   Scattered Clouds
6:56 AM 79.0 °F - 73.0 °F 82% 30.06 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:56 AM 82.0 °F 87.9 °F 73.9 °F 76% 30.06 in 10.0 mi ESE 6.9 mph - N/A   Scattered Clouds
8:56 AM 84.9 °F 93.3 °F 75.0 °F 72% 30.08 in 10.0 mi East 16.1 mph 20.7 mph N/A   Scattered Clouds
9:56 AM 88.0 °F 96.5 °F 73.9 °F 63% 30.09 in 10.0 mi East 16.1 mph 20.7 mph N/A   Scattered Clouds
10:56 AM 88.0 °F 97.5 °F 75.0 °F 65% 30.09 in 10.0 mi East 12.7 mph - N/A   Scattered Clouds
11:56 AM 88.0 °F 97.5 °F 75.0 °F 65% 30.07 in 10.0 mi ENE 13.8 mph - N/A   Scattered Clouds
12:56 PM 88.0 °F 97.5 °F 75.0 °F 65% 30.06 in 10.0 mi ENE 16.1 mph - N/A   Partly Cloudy
1:56 PM 88.0 °F 97.5 °F 75.0 °F 65% 30.03 in 10.0 mi ENE 18.4 mph - N/A   Scattered Clouds
2:56 PM 89.1 °F 97.0 °F 73.0 °F 59% 30.01 in 10.0 mi East 11.5 mph - N/A   Scattered Clouds
3:56 PM 89.1 °F 95.0 °F 71.1 °F 55% 30.00 in 10.0 mi East 12.7 mph - N/A   Scattered Clouds
4:56 PM 88.0 °F 92.1 °F 69.1 °F 53% 30.00 in 9.0 mi East 15.0 mph - N/A   Scattered Clouds
5:56 PM 84.9 °F 90.1 °F 71.1 °F 63% 30.00 in 9.0 mi East 15.0 mph - N/A   Scattered Clouds
6:56 PM 82.9 °F 88.0 °F 72.0 °F 69% 30.03 in 10.0 mi East 11.5 mph - N/A   Scattered Clouds
7:56 PM 82.9 °F 88.0 °F 72.0 °F 69% 30.05 in 10.0 mi ESE 4.6 mph - N/A   Partly Cloudy
8:56 PM 82.9 °F 89.4 °F 73.9 °F 74% 30.06 in 10.0 mi ESE 5.8 mph - N/A   Partly Cloudy
9:56 PM 82.0 °F 87.9 °F 73.9 °F 76% 30.07 in 10.0 mi East 6.9 mph - N/A   Partly Cloudy
10:56 PM 82.0 °F 88.6 °F 75.0 °F 79% 30.07 in 10.0 mi East 5.8 mph - N/A   Partly Cloudy
11:56 PM 82.0 °F 88.6 °F 75.0 °F 79% 30.05 in 10.0 mi SE 3.5 mph - N/A   Partly Cloudy