History for San Juan, PR

Friday, July 20, 2012 — View Current Conditions
Friday, July 20, 2012
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Daily Weekly Monthly Custom
  Actual Average Record
Temperature
Mean Temperature 82 °F 83 °F  
Max Temperature 86 °F 89 °F 92 °F (1995)
Min Temperature 78 °F 78 °F 72 °F (1962)
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 17 18  
Month to date cooling degree days 379 360  
Year to date cooling degree days 3186 3074  
Since 1 June cooling degree days 1005 909  
Growing Degree Days 32 (Base 50)    
Moisture
Dew Point 76 °F    
Average Humidity 78    
Maximum Humidity 85    
Minimum Humidity 70    
Precipitation
Precipitation 1.14 in 0.17 in 1.14 in (2012)
Month to date precipitation 4.77 3.31  
Year to date precipitation 30.48 26.40  
Sea Level Pressure
Sea Level Pressure 30.01 in    
Wind
Wind Speed 9 mph (East)    
Max Wind Speed 23 mph    
Max Gust Speed 30 mph    
Visibility 8 miles    
Events Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
Daily Graph
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Astronomy
May. 18, 2013 Rise Set
Actual Time 5:57 AM AST 7:02 PM AST
Civil Twilight 5:34 AM AST 7:26 PM AST
Nautical Twilight 5:06 AM AST 7:54 PM AST
Astronomical Twilight 4:37 AM AST 8:23 PM AST
Moon 7:11 AM AST (7/20) 8:05 PM AST (7/20)
Length Of Visible Light 13h 52m
Length of Day
13h 04m
New Moon, 2% of the Moon is Illuminated
Jul 20
New Moon
Jul 26
First Quarter
Aug 1
Full
Aug 9
Last Quarter
Aug 17
New
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Hourly 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 87.9 °F 77.0 °F 88% 30.02 in 10.0 mi East 10.4 mph - 0.00 in   Mostly Cloudy
1:56 AM 81.0 °F 87.3 °F 75.9 °F 85% 30.00 in 10.0 mi East 8.1 mph - 0.00 in Rain Light Rain
2:56 AM 79.0 °F - 75.0 °F 88% 29.99 in 10.0 mi ESE 5.8 mph 24.2 mph 0.23 in Rain Light Rain
3:56 AM 79.0 °F - 73.9 °F 84% 29.98 in 10.0 mi East 4.6 mph - 0.00 in   Scattered Clouds
4:56 AM 79.0 °F - 73.9 °F 84% 29.98 in 10.0 mi East 4.6 mph - N/A   Scattered Clouds
5:56 AM 80.1 °F 85.1 °F 75.0 °F 85% 29.98 in 10.0 mi ESE 4.6 mph - N/A   Mostly Cloudy
6:56 AM 81.0 °F 87.3 °F 75.9 °F 85% 30.00 in 10.0 mi East 5.8 mph - 0.00 in Rain Light Rain
7:56 AM 82.0 °F 90.2 °F 77.0 °F 85% 30.01 in 10.0 mi ESE 5.8 mph - 0.04 in   Overcast
8:56 AM 84.0 °F 92.6 °F 75.9 °F 76% 30.01 in 10.0 mi ENE 16.1 mph - 0.00 in   Mostly Cloudy
9:56 AM 84.9 °F 94.1 °F 75.9 °F 74% 30.02 in 10.0 mi East 15.0 mph 25.3 mph 0.00 in Rain Light Rain
10:23 AM 80.6 °F 86.2 °F 75.2 °F 84% 30.03 in 3.0 mi ESE 9.2 mph 19.6 mph 0.10 in Rain Light Rain
10:46 AM 80.6 °F 86.2 °F 75.2 °F 84% 30.03 in 2.0 mi East 10.4 mph - 0.24 in Rain Heavy Rain
10:56 AM 80.1 °F 85.4 °F 75.9 °F 87% 30.03 in 1.0 mi East 10.4 mph 18.4 mph 0.30 in Rain Rain
11:01 AM 80.6 °F 87.1 °F 77.0 °F 89% 30.03 in 9.0 mi East 12.7 mph - 0.02 in Rain Light Rain
11:56 AM 82.9 °F 90.8 °F 75.9 °F 79% 30.03 in 10.0 mi East 16.1 mph - 0.02 in   Overcast
12:56 PM 81.0 °F 87.9 °F 77.0 °F 88% 30.01 in 9.0 mi East 13.8 mph 29.9 mph 0.02 in Rain Light Rain
1:56 PM 84.0 °F 91.9 °F 75.0 °F 74% 30.00 in 10.0 mi East 11.5 mph - 0.00 in   Mostly Cloudy
2:56 PM 86.0 °F 95.1 °F 75.0 °F 70% 29.98 in 10.0 mi East 11.5 mph - N/A   Mostly Cloudy
3:56 PM 84.0 °F 93.7 °F 77.0 °F 79% 29.97 in 10.0 mi SE 4.6 mph - 0.03 in   Mostly Cloudy
4:56 PM 82.9 °F 90.8 °F 75.9 °F 79% 29.96 in 10.0 mi East 5.8 mph - 0.00 in   Scattered Clouds
5:56 PM 82.0 °F 89.4 °F 75.9 °F 82% 29.96 in 9.0 mi East 10.4 mph - 0.02 in Rain Light Rain
6:56 PM 81.0 °F 87.3 °F 75.9 °F 85% 29.98 in 9.0 mi ESE 5.8 mph - 0.00 in Rain Light Rain
7:56 PM 82.0 °F 90.2 °F 77.0 °F 85% 29.99 in 10.0 mi East 10.4 mph - 0.00 in   Mostly Cloudy
8:56 PM 82.0 °F 89.4 °F 75.9 °F 82% 30.01 in 10.0 mi East 11.5 mph - N/A   Mostly Cloudy
9:56 PM 82.0 °F 88.6 °F 75.0 °F 79% 30.02 in 10.0 mi East 11.5 mph 20.7 mph N/A   Mostly Cloudy
10:28 PM 82.4 °F 89.5 °F 75.2 °F 79% 30.03 in 10.0 mi East 6.9 mph - N/A Thunderstorm Thunderstorm
10:49 PM 82.4 °F 89.5 °F 75.2 °F 79% 30.06 in 2.0 mi SE 16.1 mph 27.6 mph 0.01 in Rain , Thunderstorm Heavy Thunderstorms and Rain
10:52 PM 80.6 °F 86.2 °F 75.2 °F 84% 30.06 in 1.0 mi East 17.3 mph 27.6 mph 0.07 in Rain , Thunderstorm Heavy Thunderstorms and Rain
10:56 PM 79.0 °F - 75.0 °F 88% 30.05 in 2.0 mi East 16.1 mph 28.8 mph 0.28 in Rain , Thunderstorm Heavy Thunderstorms and Rain
11:07 PM 78.8 °F - 75.2 °F 89% 30.04 in 5.0 mi East 5.8 mph - 0.20 in Rain , Thunderstorm Thunderstorms and Rain
11:56 PM 79.0 °F - 75.0 °F 88% 30.02 in 10.0 mi Calm Calm - 0.20 in Thunderstorm Thunderstorm
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