Weather History for San Juan, PR

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Monday, October 4, 2010

  Actual Average Record
Temperature  
Mean Temperature 83 °F 83 °F  
Max Temperature 87 °F 89 °F 95 °F (1994)
Min Temperature 79 °F 77 °F 71 °F (1945)
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 18 18  
Month to date cooling degree days 70 72  
Year to date cooling degree days 4683 4491  
Growing Degree Days 33 (Base 50)    
Moisture  
Dew Point 77 °F    
Average Humidity 86    
Maximum Humidity 97    
Minimum Humidity 75    
Precipitation  
Precipitation 0.15 in 0.16 in 1.31 in (1937)
Month to date precipitation 0.63 0.66  
Year to date precipitation 66.85 40.05  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Since 1 July snowfall 0.0  
Since 1 September snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.78 in    
Wind  
Wind Speed 6 mph (ENE)    
Max Wind Speed 18 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Oct. 04, 2010 Rise Set
Actual Time 6:15 AM AST 6:10 PM AST
Civil Twilight 5:53 AM AST 6:31 PM AST
Nautical Twilight 5:28 AM AST 6:57 PM AST
Astronomical Twilight 5:02 AM AST 7:22 PM AST
Moon 2:50 AM AST (10/4) 3:41 PM AST (10/4)
Length of Visible Light 12h 38m
Length of Day
11h 54m
Waning Crescent, 14% of the Moon is Illuminated
Oct 4
Waning Crescent
Oct 7
New
Oct 14
First Quarter
Oct 22
Full
Oct 30
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 79.0 °F - 75.9 °F 90% 29.80 in 10.0 mi West 3.5 mph - N/A   Scattered Clouds
1:56 AM 80.1 °F 85.8 °F 77.0 °F 90% 29.77 in 10.0 mi Calm Calm - N/A   Scattered Clouds
2:56 AM 80.1 °F 85.8 °F 77.0 °F 90% 29.77 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:56 AM 79.0 °F - 77.0 °F 94% 29.75 in 10.0 mi Calm Calm - 0.00 in   Scattered Clouds
4:56 AM 79.0 °F - 77.0 °F 94% 29.75 in 10.0 mi West 3.5 mph - N/A   Scattered Clouds
5:56 AM 79.0 °F - 77.0 °F 94% 29.76 in 10.0 mi Calm Calm - 0.05 in Rain Light Rain
6:56 AM 80.1 °F 86.4 °F 78.1 °F 94% 29.78 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
7:56 AM 80.1 °F 86.4 °F 78.1 °F 94% 29.80 in 10.0 mi Calm Calm - 0.02 in Rain Light Rain
8:56 AM 82.9 °F 92.8 °F 78.1 °F 85% 29.81 in 9.0 mi SW 3.5 mph - 0.00 in   Mostly Cloudy
9:56 AM 82.0 °F 91.0 °F 78.1 °F 88% 29.83 in 6.0 mi NE 4.6 mph - 0.07 in Rain Light Rain
10:56 AM 84.0 °F 94.8 °F 78.1 °F 82% 29.82 in 10.0 mi East 10.4 mph - 0.01 in   Mostly Cloudy
11:56 AM 87.1 °F 99.8 °F 78.1 °F 74% 29.79 in 10.0 mi ENE 12.7 mph - N/A   Scattered Clouds
12:56 PM 87.1 °F 99.8 °F 78.1 °F 74% 29.77 in 10.0 mi ENE 15.0 mph - N/A   Scattered Clouds
1:56 PM 86.0 °F 98.3 °F 78.1 °F 77% 29.75 in 10.0 mi ENE 15.0 mph 24.2 mph N/A   Scattered Clouds
2:56 PM 86.0 °F 96.9 °F 77.0 °F 74% 29.73 in 10.0 mi ENE 15.0 mph - N/A   Scattered Clouds
3:56 PM 84.9 °F 95.3 °F 77.0 °F 77% 29.73 in 10.0 mi ENE 12.7 mph 19.6 mph N/A   Scattered Clouds
4:56 PM 84.9 °F 95.3 °F 77.0 °F 77% 29.75 in 10.0 mi ENE 13.8 mph - N/A   Scattered Clouds
5:56 PM 82.9 °F 91.8 °F 77.0 °F 82% 29.76 in 10.0 mi ENE 9.2 mph - 0.00 in   Scattered Clouds
6:56 PM 82.9 °F 90.8 °F 75.9 °F 79% 29.77 in 10.0 mi ENE 8.1 mph - N/A   Scattered Clouds
7:56 PM 82.0 °F 90.2 °F 77.0 °F 85% 29.79 in 10.0 mi East 6.9 mph - N/A   Scattered Clouds
8:56 PM 82.0 °F 89.4 °F 75.9 °F 82% 29.80 in 10.0 mi East 4.6 mph - N/A   Scattered Clouds
9:56 PM 82.0 °F 89.4 °F 75.9 °F 82% 29.81 in 10.0 mi SE 3.5 mph - N/A   Scattered Clouds
10:56 PM 81.0 °F 87.3 °F 75.9 °F 85% 29.81 in 10.0 mi Calm Calm - 0.00 in   Scattered Clouds
11:56 PM 81.0 °F 87.9 °F 77.0 °F 88% 29.78 in 10.0 mi Calm Calm - N/A   Scattered Clouds