Weather History for San Juan, PR

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Monday, January 7, 2013

  Actual Average Record
Temperature  
Mean Temperature 79 °F 78 °F  
Max Temperature 84 °F 83 °F 88 °F (1992)
Min Temperature 73 °F 72 °F 64 °F (1963)
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 13  
Month to date cooling degree days 100 91  
Year to date cooling degree days 100 91  
Growing Degree Days 28 (Base 50)    
Moisture  
Dew Point 70 °F    
Average Humidity 76    
Maximum Humidity 93    
Minimum Humidity 58    
Precipitation  
Precipitation 0.12 in 0.14 in 3.70 in (1998)
Month to date precipitation 0.34 1.01  
Year to date precipitation 0.34 1.01  
Sea Level Pressure  
Sea Level Pressure 30.08 in    
Wind  
Wind Speed 13 mph (East)    
Max Wind Speed 24 mph    
Max Gust Speed 30 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Jan. 07, 2013 Rise Set
Actual Time 6:58 AM AST 6:03 PM AST
Civil Twilight 6:34 AM AST 6:26 PM AST
Nautical Twilight 6:07 AM AST 6:53 PM AST
Astronomical Twilight 5:40 AM AST 7:20 PM AST
Moon 2:27 AM AST (1/7) 2:03 PM AST (1/7)
Length of Visible Light 11h 52m
Length of Day
11h 05m
Waning Crescent, 23% of the Moon is Illuminated
Jan 7
Waning Crescent
Jan 11
New
Jan 18
First Quarter
Jan 27
Full
Feb 3
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 75.9 °F - 71.1 °F 85% 30.09 in 10.0 mi East 8.1 mph - 0.00 in   Scattered Clouds
1:56 AM 77.0 °F - 70.0 °F 79% 30.06 in 10.0 mi East 15.0 mph 20.7 mph N/A   Scattered Clouds
2:56 AM 78.1 °F - 69.1 °F 74% 30.05 in 10.0 mi East 8.1 mph - N/A   Scattered Clouds
3:56 AM 75.0 °F - 72.0 °F 90% 30.04 in 10.0 mi ESE 3.5 mph - 0.01 in   Mostly Cloudy
4:56 AM 75.0 °F - 72.0 °F 90% 30.04 in 10.0 mi East 6.9 mph - 0.01 in   Overcast
5:56 AM 73.9 °F - 72.0 °F 93% 30.06 in 10.0 mi East 11.5 mph - 0.04 in   Mostly Cloudy
6:56 AM 73.9 °F - 72.0 °F 93% 30.07 in 10.0 mi East 11.5 mph - 0.04 in Rain Light Rain
7:56 AM 75.9 °F - 71.1 °F 85% 30.09 in 10.0 mi ESE 9.2 mph - 0.01 in   Mostly Cloudy
8:56 AM 78.1 °F - 70.0 °F 76% 30.12 in 10.0 mi East 17.3 mph - N/A   Mostly Cloudy
9:56 AM 81.0 °F 84.4 °F 70.0 °F 69% 30.13 in 10.0 mi East 19.6 mph 25.3 mph N/A   Mostly Cloudy
10:56 AM 82.0 °F 85.5 °F 69.1 °F 65% 30.13 in 10.0 mi East 20.7 mph 27.6 mph N/A   Scattered Clouds
11:56 AM 82.9 °F 85.4 °F 66.9 °F 58% 30.09 in 10.0 mi East 17.3 mph - N/A   Partly Cloudy
12:56 PM 84.0 °F 87.0 °F 68.0 °F 58% 30.08 in 10.0 mi ENE 18.4 mph - 0.01 in   Partly Cloudy
1:56 PM 82.9 °F 85.8 °F 68.0 °F 60% 30.05 in 10.0 mi East 19.6 mph 26.5 mph N/A   Scattered Clouds
2:56 PM 84.0 °F 87.0 °F 68.0 °F 58% 30.04 in 10.0 mi East 19.6 mph 24.2 mph N/A   Partly Cloudy
3:56 PM 82.9 °F 85.8 °F 68.0 °F 60% 30.04 in 10.0 mi East 16.1 mph 24.2 mph N/A   Partly Cloudy
4:56 PM 81.0 °F 83.8 °F 68.0 °F 65% 30.04 in 10.0 mi East 17.3 mph - N/A   Partly Cloudy
5:56 PM 79.0 °F - 66.9 °F 66% 30.05 in 10.0 mi East 10.4 mph - N/A   Partly Cloudy
6:56 PM 78.1 °F - 69.1 °F 74% 30.07 in 10.0 mi East 9.2 mph - N/A   Partly Cloudy
7:56 PM 78.1 °F - 69.1 °F 74% 30.09 in 10.0 mi East 11.5 mph - N/A   Scattered Clouds
8:56 PM 78.1 °F - 70.0 °F 76% 30.10 in 10.0 mi East 11.5 mph - N/A   Scattered Clouds
9:56 PM 78.1 °F - 70.0 °F 76% 30.11 in 10.0 mi East 11.5 mph - N/A   Scattered Clouds
10:56 PM 78.1 °F - 69.1 °F 74% 30.10 in 10.0 mi East 9.2 mph - N/A   Scattered Clouds
11:56 PM 77.0 °F - 70.0 °F 79% 30.10 in 10.0 mi ESE 5.8 mph - N/A   Scattered Clouds