Weather History for San Juan, PR

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Sunday, January 29, 2012

  Actual Average Record
Temperature  
Mean Temperature 77 °F 78 °F  
Max Temperature 82 °F 83 °F 90 °F (1978)
Min Temperature 71 °F 72 °F 64 °F (1964)
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 12 12  
Month to date cooling degree days 364 366  
Year to date cooling degree days 364 366  
Growing Degree Days 27 (Base 50)    
Moisture  
Dew Point 67 °F    
Average Humidity 73    
Maximum Humidity 87    
Minimum Humidity 58    
Precipitation  
Precipitation 0.20 in 0.09 in 1.21 in (1956)
Month to date precipitation 3.00 3.58  
Year to date precipitation 3.00 3.58  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Since 1 July snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 9 mph (East)    
Max Wind Speed 26 mph    
Max Gust Speed 31 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 29, 2012 Rise Set
Actual Time 6:58 AM AST 6:16 PM AST
Civil Twilight 6:35 AM AST 6:39 PM AST
Nautical Twilight 6:09 AM AST 7:05 PM AST
Astronomical Twilight 5:42 AM AST 7:31 PM AST
Moon 10:50 AM AST (1/29) 11:49 PM AST (1/29)
Length of Visible Light 12h 03m
Length of Day
11h 17m
Waxing Crescent, 36% of the Moon is Illuminated
Jan 29
Waxing Crescent
Jan 31
First Quarter
Feb 7
Full
Feb 14
Last Quarter
Feb 21
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 72.0 °F - 70.0 °F 93% 30.09 in 5.0 mi Calm Calm - 0.07 in Rain Rain
1:56 AM 73.0 °F - 70.0 °F 90% 30.08 in 10.0 mi ESE 5.8 mph - 0.01 in   Mostly Cloudy
2:56 AM 73.0 °F - 69.1 °F 87% 30.07 in 10.0 mi ESE 6.9 mph - 0.01 in   Mostly Cloudy
3:56 AM 72.0 °F - 68.0 °F 87% 30.06 in 7.0 mi ESE 8.1 mph - 0.06 in Rain Light Rain
4:56 AM 73.0 °F - 69.1 °F 87% 30.07 in 9.0 mi East 10.4 mph - 0.01 in Rain Light Rain
5:56 AM 73.0 °F - 66.4 °F 80% 30.08 in 10.0 mi ESE 4.6 mph - 0.04 in   Scattered Clouds
6:56 AM 73.0 °F - 66.4 °F 80% 30.09 in 10.0 mi ESE 6.9 mph - N/A   Scattered Clouds
7:56 AM 73.0 °F - 67.5 °F 83% 30.11 in 10.0 mi East 6.9 mph - N/A   Scattered Clouds
8:56 AM 77.0 °F - 69.1 °F 76% 30.14 in 10.0 mi East 8.1 mph - N/A   Scattered Clouds
9:56 AM 79.0 °F - 66.0 °F 64% 30.15 in 10.0 mi East 17.3 mph 24.2 mph N/A   Scattered Clouds
10:56 AM 81.0 °F 83.3 °F 66.9 °F 62% 30.14 in 10.0 mi ENE 16.1 mph - N/A   Scattered Clouds
11:56 AM 82.0 °F 84.1 °F 66.0 °F 58% 30.13 in 10.0 mi ENE 16.1 mph 25.3 mph N/A   Scattered Clouds
12:56 PM 82.0 °F 84.1 °F 66.0 °F 58% 30.10 in 10.0 mi ENE 16.1 mph 21.9 mph N/A   Scattered Clouds
1:56 PM 80.1 °F 82.9 °F 69.1 °F 69% 30.08 in 10.0 mi ENE 20.7 mph - N/A   Scattered Clouds
2:56 PM 79.0 °F - 66.9 °F 66% 30.06 in 10.0 mi East 20.7 mph - N/A   Partly Cloudy
3:56 PM 75.0 °F - 66.9 °F 76% 30.06 in 9.0 mi ESE 16.1 mph 28.8 mph 0.00 in Rain Light Rain
4:56 PM 75.0 °F - 66.9 °F 76% 30.06 in 10.0 mi East 6.9 mph - 0.00 in   Mostly Cloudy
5:56 PM 75.9 °F - 64.9 °F 69% 30.06 in 10.0 mi East 5.8 mph - N/A   Scattered Clouds
6:56 PM 75.0 °F - 66.9 °F 76% 30.07 in 10.0 mi East 5.8 mph - N/A   Scattered Clouds
7:56 PM 75.0 °F - 66.9 °F 76% 30.09 in 10.0 mi East 3.5 mph - N/A   Partly Cloudy
8:56 PM 75.0 °F - 66.9 °F 76% 30.10 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:56 PM 73.9 °F - 68.0 °F 82% 30.11 in 10.0 mi SE 3.5 mph - 0.00 in   Scattered Clouds
10:56 PM 75.0 °F - 68.0 °F 79% 30.11 in 10.0 mi ENE 8.1 mph - N/A   Mostly Cloudy
11:56 PM 73.9 °F - 68.0 °F 82% 30.10 in 10.0 mi Calm Calm - 0.00 in   Mostly Cloudy