Weather History for San Juan, PR

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Sunday, July 15, 2012

  Actual Average Record
Temperature  
Mean Temperature 84 °F 83 °F  
Max Temperature 88 °F 89 °F 93 °F (1981)
Min Temperature 80 °F 78 °F 70 °F (1909)
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 18  
Month to date cooling degree days 286 270  
Year to date cooling degree days 3093 2984  
Since 1 June cooling degree days 912 819  
Growing Degree Days 34 (Base 50)    
Moisture  
Dew Point 76 °F    
Average Humidity 80    
Maximum Humidity 91    
Minimum Humidity 68    
Precipitation  
Precipitation 0.26 in 0.17 in 1.43 in (1909)
Month to date precipitation 2.98 2.45  
Year to date precipitation 28.69 25.54  
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 12 mph (East)    
Max Wind Speed 24 mph    
Max Gust Speed 30 mph    
Visibility 9 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

Jul. 15, 2012 Rise Set
Actual Time 5:56 AM AST 7:03 PM AST
Civil Twilight 5:32 AM AST 7:27 PM AST
Nautical Twilight 5:04 AM AST 7:55 PM AST
Astronomical Twilight 4:35 AM AST 8:24 PM AST
Moon 2:49 AM AST (7/15) 4:15 PM AST (7/15)
Length of Visible Light 13h 55m
Length of Day
13h 07m
Waning Crescent, 12% of the Moon is Illuminated
Jul 15
Waning Crescent
Jul 19
New
Jul 26
First Quarter
Aug 1
Full
Aug 9
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 81.0 °F 86.7 °F 75.0 °F 82% 30.07 in 10.0 mi East 6.9 mph - N/A   Partly Cloudy
1:56 AM 80.1 °F 85.1 °F 75.0 °F 85% 30.05 in 10.0 mi East 6.9 mph - N/A   Scattered Clouds
2:56 AM 81.0 °F 86.2 °F 73.9 °F 79% 30.04 in 10.0 mi East 10.4 mph - N/A   Scattered Clouds
3:56 AM 81.0 °F 86.7 °F 75.0 °F 82% 30.03 in 10.0 mi East 5.8 mph - N/A   Scattered Clouds
4:56 AM 81.0 °F 87.3 °F 75.9 °F 85% 30.03 in 10.0 mi East 9.2 mph - 0.00 in   Scattered Clouds
5:56 AM 80.1 °F 85.4 °F 75.9 °F 87% 30.04 in 8.0 mi ESE 6.9 mph - 0.03 in   Scattered Clouds
6:56 AM 82.0 °F 89.4 °F 75.9 °F 82% 30.06 in 7.0 mi East 10.4 mph - N/A   Scattered Clouds
7:56 AM 82.9 °F 90.8 °F 75.9 °F 79% 30.08 in 7.0 mi East 12.7 mph 21.9 mph N/A   Mostly Cloudy
8:56 AM 82.9 °F 90.2 °F 75.0 °F 77% 30.09 in 7.0 mi ESE 13.8 mph 28.8 mph 0.00 in Rain Light Rain
9:56 AM 86.0 °F 96.0 °F 75.9 °F 72% 30.08 in 9.0 mi East 19.6 mph 25.3 mph 0.00 in   Scattered Clouds
10:56 AM 87.1 °F 96.3 °F 75.0 °F 67% 30.09 in 9.0 mi East 19.6 mph 25.3 mph N/A   Scattered Clouds
11:56 AM 87.1 °F 96.3 °F 75.0 °F 67% 30.08 in 9.0 mi ENE 18.4 mph - N/A   Scattered Clouds
12:56 PM 84.9 °F 96.6 °F 78.1 °F 80% 30.06 in 9.0 mi East 13.8 mph - 0.13 in   Scattered Clouds
1:56 PM 86.0 °F 99.3 °F 79.0 °F 79% 30.04 in 9.0 mi East 16.1 mph - 0.02 in   Scattered Clouds
2:56 PM 84.9 °F 95.3 °F 77.0 °F 77% 30.04 in 9.0 mi East 23.0 mph 27.6 mph 0.00 in Rain Light Rain
3:56 PM 86.0 °F 96.0 °F 75.9 °F 72% 30.02 in 9.0 mi East 18.4 mph 26.5 mph 0.04 in   Scattered Clouds
4:56 PM 87.1 °F 96.3 °F 75.0 °F 67% 30.01 in 9.0 mi East 17.3 mph 20.7 mph N/A   Scattered Clouds
5:56 PM 86.0 °F 95.1 °F 75.0 °F 70% 30.01 in 9.0 mi East 13.8 mph - N/A   Scattered Clouds
6:56 PM 84.0 °F 91.9 °F 75.0 °F 74% 30.03 in 9.0 mi East 11.5 mph - N/A   Scattered Clouds
7:56 PM 81.0 °F 87.9 °F 77.0 °F 88% 30.04 in 10.0 mi East 6.9 mph - 0.04 in   Scattered Clouds
8:56 PM 81.0 °F 87.9 °F 77.0 °F 88% 30.05 in 10.0 mi East 15.0 mph 20.7 mph 0.00 in Rain Light Rain
9:56 PM 82.0 °F 89.4 °F 75.9 °F 82% 30.06 in 10.0 mi East 9.2 mph - 0.00 in   Partly Cloudy
10:56 PM 81.0 °F 87.3 °F 75.9 °F 85% 30.06 in 10.0 mi East 6.9 mph - N/A   Scattered Clouds
11:56 PM 82.0 °F 89.4 °F 75.9 °F 82% 30.06 in 10.0 mi East 5.8 mph - 0.00 in   Mostly Cloudy