Weather History for San Juan, PR

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Thursday, October 31, 2013

  Actual Average Record
Temperature  
Mean Temperature 83 °F 82 °F  
Max Temperature 87 °F 87 °F 92 °F (1973)
Min Temperature 78 °F 76 °F 70 °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 18 17  
Month to date cooling degree days 591 547  
Year to date cooling degree days 5096 4966  
Growing Degree Days 31 (Base 50)    
Moisture  
Dew Point 73 °F    
Average Humidity 77    
Maximum Humidity 91    
Minimum Humidity 63    
Precipitation  
Precipitation 0.39 in 0.21 in 3.48 in (1927)
Month to date precipitation 3.19 5.59  
Year to date precipitation 68.43 44.98  
Sea Level Pressure  
Sea Level Pressure 29.90 in    
Wind  
Wind Speed 8 mph (ENE)    
Max Wind Speed 20 mph    
Max Gust Speed 25 mph    
Visibility 9 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Astronomy

Oct. 31, 2013 Rise Set
Actual Time 6:23 AM AST 5:51 PM AST
Civil Twilight 6:00 AM AST 6:14 PM AST
Nautical Twilight 5:35 AM AST 6:39 PM AST
Astronomical Twilight 5:09 AM AST 7:05 PM AST
Moon 3:33 AM AST (10/31) 3:47 PM AST (10/31)
Length of Visible Light 12h 13m
Length of Day
11h 28m
Waning Crescent, 10% of the Moon is Illuminated
Oct 31
Waning Crescent
Nov 3
New
Nov 10
First Quarter
Nov 17
Full
Nov 25
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 - 73.0 °F 82% 29.93 in 10.0 mi Calm Calm - 0.00 in   Mostly Cloudy
1:56 AM 78.1 °F - 75.0 °F 90% 29.90 in 10.0 mi SW 3.5 mph - 0.00 in   Scattered Clouds
2:56 AM 78.1 °F - 75.0 °F 90% 29.89 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:56 AM 81.0 °F 85.8 °F 73.0 °F 77% 29.89 in 10.0 mi NE 9.2 mph - N/A   Scattered Clouds
4:56 AM 81.0 °F 85.8 °F 73.0 °F 77% 29.87 in 10.0 mi NNE 9.2 mph - N/A   Mostly Cloudy
5:56 AM 81.0 °F 85.8 °F 73.0 °F 77% 29.89 in 10.0 mi NE 8.1 mph - N/A   Mostly Cloudy
6:56 AM 81.0 °F 85.8 °F 73.0 °F 77% 29.91 in 10.0 mi NE 5.8 mph - N/A   Scattered Clouds
7:56 AM 82.9 °F 88.8 °F 73.0 °F 72% 29.94 in 10.0 mi NE 6.9 mph - N/A   Scattered Clouds
8:56 AM 84.0 °F 89.6 °F 72.0 °F 67% 29.96 in 10.0 mi ENE 9.2 mph - 0.01 in   Scattered Clouds
9:56 AM 84.0 °F 90.2 °F 73.0 °F 69% 29.97 in 10.0 mi East 12.7 mph - N/A   Scattered Clouds
10:56 AM 86.0 °F 93.8 °F 73.9 °F 67% 29.94 in 10.0 mi East 10.4 mph - N/A   Scattered Clouds
11:56 AM 84.9 °F 92.1 °F 73.9 °F 69% 29.92 in 10.0 mi ENE 16.1 mph - N/A   Scattered Clouds
12:56 PM 87.1 °F 95.4 °F 73.9 °F 65% 29.89 in 10.0 mi ENE 13.8 mph - 0.00 in   Scattered Clouds
1:56 PM 84.9 °F 92.1 °F 73.9 °F 69% 29.86 in 10.0 mi ENE 11.5 mph - N/A   Scattered Clouds
2:56 PM 84.9 °F 92.1 °F 73.9 °F 69% 29.86 in 10.0 mi ENE 12.7 mph - N/A   Scattered Clouds
3:56 PM 82.0 °F 88.6 °F 75.0 °F 79% 29.85 in 10.0 mi NE 6.9 mph - 0.23 in   Mostly Cloudy
4:42 PM 80.6 °F 84.6 °F 71.6 °F 74% 29.87 in 2.5 mi NE 16.1 mph 24.2 mph 0.01 in Rain Heavy Rain
4:45 PM 80.6 °F 85.4 °F 73.4 °F 79% 29.87 in 4.0 mi NE 4.6 mph 24.2 mph 0.07 in Rain Rain
4:56 PM 79.0 °F - 73.0 °F 82% 29.86 in 7.0 mi NE 4.6 mph - 0.15 in Rain Light Rain
5:56 PM 80.1 °F 84.2 °F 73.0 °F 79% 29.88 in 10.0 mi NNE 3.5 mph - N/A   Overcast
6:56 PM 79.0 °F - 75.0 °F 88% 29.87 in 10.0 mi South 4.6 mph - 0.02 in   Mostly Cloudy
7:56 PM 78.1 °F - 73.0 °F 84% 29.90 in 10.0 mi SW 4.6 mph - N/A   Scattered Clouds
8:56 PM 75.9 °F - 69.1 °F 79% 29.92 in 5.0 mi Calm Calm - 0.00 in Rain Light Rain
9:56 PM 75.9 °F - 71.1 °F 85% 29.92 in 10.0 mi Calm Calm - 0.03 in   Scattered Clouds
10:56 PM 75.9 °F - 72.0 °F 87% 29.93 in 10.0 mi SSW 3.5 mph - N/A   Scattered Clouds
11:56 PM 75.9 °F - 72.0 °F 87% 29.89 in 10.0 mi SW 5.8 mph - N/A   Scattered Clouds