Weather History for San Juan, PR

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Thursday, January 3, 2013

  Actual Average Record
Temperature  
Mean Temperature 77 °F 78 °F  
Max Temperature 81 °F 83 °F 87 °F (1996)
Min Temperature 72 °F 72 °F 67 °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 12 13  
Month to date cooling degree days 40 39  
Year to date cooling degree days 40 39  
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 71 °F    
Average Humidity 82    
Maximum Humidity 94    
Minimum Humidity 69    
Precipitation  
Precipitation 0.13 in 0.15 in 0.60 in (2001)
Month to date precipitation 0.20 0.45  
Year to date precipitation 0.20 0.45  
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 5 mph (ESE)    
Max Wind Speed 18 mph    
Max Gust Speed 22 mph    
Visibility 9 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. 03, 2013 Rise Set
Actual Time 6:56 AM AST 6:00 PM AST
Civil Twilight 6:33 AM AST 6:24 PM AST
Nautical Twilight 6:06 AM AST 6:51 PM AST
Astronomical Twilight 5:39 AM AST 7:18 PM AST
Moon 11:33 PM AST (1/3) 10:59 AM AST (1/3)
Length of Visible Light 11h 50m
Length of Day
11h 03m
Waning Gibbous, 66% of the Moon is Illuminated
Jan 3
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 27
Full

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 73.9 °F - 66.9 °F 79% 30.05 in 10.0 mi Calm Calm - 0.00 in   Scattered Clouds
1:56 AM 73.0 °F - 66.9 °F 81% 30.03 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:56 AM 73.0 °F - 66.9 °F 81% 30.02 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:56 AM 73.0 °F - 68.0 °F 84% 30.02 in 10.0 mi Calm Calm - N/A   Scattered Clouds
4:56 AM 73.9 °F - 69.1 °F 85% 30.02 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:56 AM 73.9 °F - 69.1 °F 85% 30.03 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:56 AM 75.0 °F - 70.0 °F 84% 30.05 in 10.0 mi East 4.6 mph - 0.01 in   Mostly Cloudy
7:56 AM 75.0 °F - 71.1 °F 87% 30.07 in 10.0 mi ESE 3.5 mph - N/A   Mostly Cloudy
8:56 AM 75.9 °F - 71.1 °F 85% 30.09 in 10.0 mi SE 3.5 mph - 0.00 in Rain Light Rain
9:56 AM 75.9 °F - 73.0 °F 91% 30.11 in 10.0 mi SE 3.5 mph - 0.02 in Rain Light Rain
10:56 AM 78.1 °F - 72.0 °F 81% 30.10 in 8.0 mi ESE 4.6 mph - 0.00 in Rain Light Rain
11:06 AM 77.0 °F - 73.4 °F 89% 30.11 in 2.0 mi East 12.7 mph - 0.01 in Rain Light Rain
11:26 AM 75.2 °F - 73.4 °F 94% 30.10 in 3.0 mi East 11.5 mph - 0.05 in Rain Light Rain
11:56 AM 75.9 °F - 73.9 °F 94% 30.09 in 10.0 mi East 12.7 mph - 0.07 in   Mostly Cloudy
12:56 PM 78.1 °F - 73.9 °F 87% 30.07 in 10.0 mi East 12.7 mph - 0.01 in Rain Light Rain
1:56 PM 80.1 °F 84.5 °F 73.9 °F 81% 30.05 in 10.0 mi ENE 11.5 mph - 0.01 in   Mostly Cloudy
2:56 PM 80.1 °F 83.8 °F 72.0 °F 76% 30.04 in 10.0 mi ENE 16.1 mph - N/A   Scattered Clouds
3:56 PM 81.0 °F 84.9 °F 71.1 °F 72% 30.04 in 10.0 mi East 15.0 mph 21.9 mph 0.00 in   Scattered Clouds
4:56 PM 81.0 °F 84.4 °F 70.0 °F 69% 30.05 in 10.0 mi East 9.2 mph - N/A   Scattered Clouds
5:56 PM 80.1 °F 82.9 °F 69.1 °F 69% 30.06 in 10.0 mi East 4.6 mph - 0.01 in   Scattered Clouds
6:56 PM 79.0 °F - 70.0 °F 74% 30.08 in 10.0 mi ESE 5.8 mph - N/A   Scattered Clouds
7:56 PM 78.1 °F - 70.0 °F 76% 30.09 in 10.0 mi SE 3.5 mph - N/A   Scattered Clouds
8:56 PM 78.1 °F - 71.1 °F 79% 30.11 in 10.0 mi ESE 4.6 mph - N/A   Scattered Clouds
9:56 PM 77.0 °F - 70.0 °F 79% 30.12 in 10.0 mi SE 3.5 mph - N/A   Scattered Clouds
10:56 PM 75.0 °F - 70.0 °F 84% 30.12 in 10.0 mi East 6.9 mph - N/A   Scattered Clouds
11:56 PM 75.9 °F - 70.0 °F 82% 30.12 in 10.0 mi Calm Calm - N/A   Partly Cloudy