Weather History for KSFO - May, 2013

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Tuesday, May 7, 2013

  Actual Average Record
Temperature  
Mean Temperature 62 °F 59 °F  
Max Temperature 71 °F 67 °F 89 °F (2007)
Min Temperature 53 °F 51 °F 40 °F (1968)
Degree Days  
Heating Degree Days 3 6  
Month to date heating degree days 5 48  
Since 1 July heating degree days 2396 2416  
Cooling Degree Days 0 0  
Month to date cooling degree days 20 0  
Year to date cooling degree days 24 6  
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 49 °F    
Average Humidity 67    
Maximum Humidity 89    
Minimum Humidity 44    
Precipitation  
Precipitation 0.00 in 0.01 in 0.44 in (1994)
Month to date precipitation T 0.15  
Year to date precipitation 1.83 12.65  
Since 1 July precipitation 12.83  
Sea Level Pressure  
Sea Level Pressure 30.02 in    
Wind  
Wind Speed 9 mph (West)    
Max Wind Speed 17 mph    
Max Gust Speed 25 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 07, 2013 Rise Set
Actual Time 6:07 AM PDT 8:05 PM PDT
Civil Twilight 5:38 AM PDT 8:34 PM PDT
Nautical Twilight 5:03 AM PDT 9:09 PM PDT
Astronomical Twilight 4:26 AM PDT 9:46 PM PDT
Moon 4:41 AM PDT (5/7) 6:12 PM PDT (5/7)
Length of Visible Light 14h 55m
Length of Day
13h 58m
Waning Crescent, 5% of the Moon is Illuminated
May 7
Waning Crescent
May 9
New
May 17
First Quarter
May 24
Full
May 31
Last Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 61.0 °F 46.9 °F 60% 29.97 in 10.0 mi South 9.2 mph - N/A   Mostly Cloudy
1:56 AM 61.0 °F 48.0 °F 62% 29.97 in 10.0 mi SSW 5.8 mph - N/A   Overcast
2:56 AM 60.1 °F 46.9 °F 62% 29.97 in 10.0 mi SW 9.2 mph - N/A   Mostly Cloudy
3:56 AM 60.1 °F 46.9 °F 62% 29.97 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
4:56 AM 59.0 °F 48.9 °F 69% 29.98 in 10.0 mi West 6.9 mph - N/A   Overcast
5:56 AM 59.0 °F 48.0 °F 67% 29.99 in 10.0 mi WSW 5.8 mph - N/A   Overcast
6:56 AM 59.0 °F 48.9 °F 69% 29.99 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:56 AM 61.0 °F 48.9 °F 64% 30.01 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:52 AM 62.6 °F 48.2 °F 59% 30.02 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
8:56 AM 63.0 °F 48.9 °F 60% 30.03 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
9:56 AM 64.0 °F 52.0 °F 65% 30.03 in 10.0 mi North 4.6 mph - N/A   Mostly Cloudy
10:56 AM 64.9 °F 48.9 °F 56% 30.04 in 10.0 mi West 11.5 mph 16.1 mph N/A   Mostly Cloudy
11:56 AM 66.9 °F 48.9 °F 52% 30.04 in 10.0 mi West 12.7 mph - N/A   Mostly Cloudy
12:56 PM 69.1 °F 48.0 °F 47% 30.04 in 10.0 mi SSW 12.7 mph - N/A   Scattered Clouds
1:56 PM 69.1 °F 48.0 °F 47% 30.03 in 10.0 mi West 9.2 mph 16.1 mph N/A   Scattered Clouds
2:56 PM 69.8 °F 48.2 °F 46% 30.02 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds
3:56 PM 69.1 °F 46.9 °F 45% 30.01 in 10.0 mi WNW 13.8 mph - N/A   Scattered Clouds
4:56 PM 66.9 °F 50.0 °F 54% 30.01 in 10.0 mi WNW 17.3 mph 21.9 mph N/A   Scattered Clouds
5:56 PM 62.1 °F 51.1 °F 67% 30.01 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds
6:56 PM 60.1 °F 50.0 °F 69% 30.02 in 10.0 mi West 13.8 mph - N/A   Scattered Clouds
7:56 PM 55.9 °F 50.0 °F 80% 30.03 in 10.0 mi WNW 12.7 mph - N/A   Scattered Clouds
8:38 PM 53.6 °F 50.0 °F 88% 30.05 in 10.0 mi WNW 13.8 mph - N/A   Mostly Cloudy
8:56 PM 54.0 °F 50.0 °F 86% 30.05 in 10.0 mi West 12.7 mph - N/A   Mostly Cloudy
9:56 PM 54.0 °F 50.0 °F 86% 30.07 in 10.0 mi WNW 8.1 mph - N/A   Mostly Cloudy
10:56 PM 54.0 °F 50.0 °F 86% 30.06 in 10.0 mi WNW 10.4 mph - N/A   Mostly Cloudy
11:03 PM 53.6 °F 50.0 °F 88% 30.06 in 10.0 mi WNW 11.5 mph - N/A   Scattered Clouds
11:56 PM 53.1 °F 50.0 °F 89% 30.07 in 10.0 mi WNW 10.4 mph - N/A   Mostly Cloudy