Weather History for San Juan, PR

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Saturday, January 4, 2014

  Actual Average Record
Temperature  
Mean Temperature 81 °F 78 °F  
Max Temperature 86 °F 83 °F 88 °F (2010)
Min Temperature 76 °F 72 °F 63 °F (1965)
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 16 13  
Month to date cooling degree days 62 52  
Year to date cooling degree days 62 52  
Growing Degree Days 30 (Base 50)    
Moisture  
Dew Point 74 °F    
Average Humidity 78    
Maximum Humidity 94    
Minimum Humidity 61    
Precipitation  
Precipitation 0.16 in 0.14 in 0.49 in (1964)
Month to date precipitation 0.89 0.59  
Year to date precipitation 0.89 0.59  
Sea Level Pressure  
Sea Level Pressure 30.04 in    
Wind  
Wind Speed 9 mph (East)    
Max Wind Speed 24 mph    
Max Gust Speed 29 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. 04, 2014 Rise Set
Actual Time 6:57 AM AST 6:01 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 9:32 AM AST (1/4) 9:39 PM AST (1/4)
Length of Visible Light 11h 51m
Length of Day
11h 03m
Waxing Crescent, 15% of the Moon is Illuminated
Jan 4
Waxing Crescent
Jan 7
First Quarter
Jan 16
Full
Jan 24
Last Quarter
Jan 30
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 77.0 °F - 75.0 °F 94% 30.05 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:56 AM 78.1 °F - 73.9 °F 87% 30.05 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
2:56 AM 77.0 °F - 73.9 °F 90% 30.03 in 10.0 mi Calm Calm - 0.03 in   Mostly Cloudy
3:56 AM 75.9 °F - 73.9 °F 94% 30.03 in 10.0 mi Calm Calm - N/A   Scattered Clouds
4:56 AM 77.0 °F - 73.9 °F 90% 30.04 in 10.0 mi Calm Calm - 0.00 in   Scattered Clouds
5:56 AM 75.9 °F - 73.0 °F 91% 30.04 in 10.0 mi ESE 4.6 mph - N/A   Partly Cloudy
6:56 AM 75.9 °F - 73.0 °F 91% 30.06 in 10.0 mi SE 3.5 mph - N/A   Scattered Clouds
7:56 AM 78.1 °F - 73.9 °F 87% 30.08 in 10.0 mi SE 3.5 mph - N/A   Scattered Clouds
8:56 AM 81.0 °F 85.8 °F 73.0 °F 77% 30.10 in 10.0 mi East 6.9 mph - N/A   Scattered Clouds
9:56 AM 82.9 °F 88.8 °F 73.0 °F 72% 30.10 in 10.0 mi East 17.3 mph 24.2 mph N/A   Scattered Clouds
10:56 AM 82.9 °F 88.0 °F 72.0 °F 69% 30.09 in 10.0 mi ENE 16.1 mph 23.0 mph N/A   Mostly Cloudy
11:56 AM 84.0 °F 89.0 °F 71.1 °F 65% 30.07 in 10.0 mi East 18.4 mph 27.6 mph N/A   Mostly Cloudy
12:56 PM 86.0 °F 92.2 °F 72.0 °F 63% 30.05 in 10.0 mi East 19.6 mph 24.2 mph 0.00 in   Mostly Cloudy
1:56 PM 84.0 °F 90.2 °F 73.0 °F 69% 30.02 in 10.0 mi ENE 20.7 mph 26.5 mph N/A   Mostly Cloudy
2:56 PM 82.9 °F 88.8 °F 73.0 °F 72% 30.00 in 10.0 mi East 20.7 mph - N/A   Scattered Clouds
3:56 PM 82.0 °F 87.9 °F 73.9 °F 76% 30.00 in 10.0 mi East 16.1 mph 23.0 mph 0.00 in Rain Light Rain
4:43 PM 78.8 °F - 75.2 °F 89% 30.00 in 3.0 mi East 20.7 mph 27.6 mph 0.01 in Rain Rain
4:56 PM 78.1 °F - 75.0 °F 90% 30.01 in 8.0 mi East 10.4 mph 24.2 mph 0.08 in Rain Light Rain
5:56 PM 77.0 °F - 73.9 °F 90% 30.01 in 10.0 mi ESE 6.9 mph - 0.05 in   Mostly Cloudy
6:56 PM 77.0 °F - 73.9 °F 90% 30.01 in 10.0 mi East 9.2 mph - 0.00 in   Scattered Clouds
7:56 PM 78.1 °F - 75.0 °F 90% 30.02 in 10.0 mi ESE 5.8 mph - N/A   Partly Cloudy
8:56 PM 78.1 °F - 73.9 °F 87% 30.04 in 10.0 mi East 9.2 mph - N/A   Partly Cloudy
9:56 PM 78.1 °F - 73.9 °F 87% 30.04 in 10.0 mi East 8.1 mph - N/A   Scattered Clouds
10:56 PM 78.1 °F - 73.9 °F 87% 30.04 in 10.0 mi East 8.1 mph - N/A   Scattered Clouds
11:56 PM 79.0 °F - 73.9 °F 84% 30.03 in 10.0 mi East 8.1 mph - N/A   Scattered Clouds