Weather History for San Francisco, CA

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Friday, August 2, 2013

  Actual Average Record
Temperature  
Mean Temperature 61 °F 64 °F  
Max Temperature 68 °F 72 °F 91 °F (1946)
Min Temperature 53 °F 56 °F 49 °F (1982)
Degree Days  
Heating Degree Days 4 2  
Month to date heating degree days 7 4  
Since 1 June heating degree days 173 174  
Since 1 July heating degree days 85 69  
Cooling Degree Days 0 1  
Month to date cooling degree days 0 2  
Year to date cooling degree days 72 66  
Since 1 June cooling degree days 45 47  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 73    
Maximum Humidity 89    
Minimum Humidity 56    
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in (2014)
Month to date precipitation 0.00 0.00  
Year to date precipitation 1.89 13.08  
Since 1 July precipitation T T  
Sea Level Pressure  
Sea Level Pressure 29.96 in    
Wind  
Wind Speed 13 mph (WNW)    
Max Wind Speed 24 mph    
Max Gust Speed 29 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Aug. 02, 2013 Rise Set
Actual Time 6:14 AM PDT 8:16 PM PDT
Civil Twilight 5:45 AM PDT 8:45 PM PDT
Nautical Twilight 5:10 AM PDT 9:20 PM PDT
Astronomical Twilight 4:32 AM PDT 9:58 PM PDT
Moon 2:40 AM PDT (8/2) 5:17 PM PDT (8/2)
Length of Visible Light 14h 59m
Length of Day
14h 01m
Waning Crescent, 15% of the Moon is Illuminated
Aug 2
Waning Crescent
Aug 6
New
Aug 14
First Quarter
Aug 20
Full
Aug 28
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 55.9 °F 51.1 °F 84% 29.98 in 10.0 mi West 8.1 mph - N/A   Partly Cloudy
1:56 AM 55.9 °F 51.1 °F 84% 29.97 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
2:46 AM 55.4 °F 51.8 °F 88% 29.96 in 10.0 mi West 18.4 mph 24.2 mph N/A   Scattered Clouds
2:56 AM 55.0 °F 50.0 °F 83% 29.95 in 10.0 mi West 21.9 mph - N/A   Scattered Clouds
3:56 AM 55.0 °F 50.0 °F 83% 29.95 in 10.0 mi West 16.1 mph - N/A   Partly Cloudy
4:56 AM 54.0 °F 50.0 °F 86% 29.96 in 10.0 mi WNW 9.2 mph - N/A   Scattered Clouds
5:56 AM 53.1 °F 50.0 °F 89% 29.98 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
6:11 AM 53.6 °F 50.0 °F 88% 29.98 in 10.0 mi West 8.1 mph - N/A   Mostly Cloudy
6:56 AM 54.0 °F 50.0 °F 86% 29.98 in 10.0 mi WNW 5.8 mph - N/A   Mostly Cloudy
7:56 AM 57.0 °F 51.1 °F 81% 29.99 in 10.0 mi WNW 6.9 mph - N/A   Scattered Clouds
8:56 AM 59.0 °F 50.0 °F 72% 30.00 in 10.0 mi WNW 11.5 mph - N/A   Scattered Clouds
9:56 AM 60.1 °F 50.0 °F 69% 29.99 in 10.0 mi WNW 12.7 mph - N/A   Scattered Clouds
10:56 AM 63.0 °F 50.0 °F 63% 29.99 in 10.0 mi WNW 15.0 mph - N/A   Scattered Clouds
11:56 AM 66.9 °F 50.0 °F 54% 29.98 in 10.0 mi WNW 15.0 mph - N/A   Partly Cloudy
12:56 PM 66.0 °F 50.0 °F 56% 29.97 in 10.0 mi WNW 18.4 mph - N/A   Partly Cloudy
1:56 PM 66.9 °F 51.1 °F 57% 29.96 in 10.0 mi WNW 19.6 mph - N/A   Partly Cloudy
2:56 PM 66.0 °F 50.0 °F 56% 29.95 in 10.0 mi WNW 20.7 mph - N/A   Partly Cloudy
3:56 PM 64.0 °F 51.1 °F 63% 29.95 in 10.0 mi West 19.6 mph - N/A   Partly Cloudy
4:56 PM 63.0 °F 51.1 °F 65% 29.94 in 10.0 mi West 19.6 mph - N/A   Partly Cloudy
5:56 PM 62.1 °F 50.0 °F 65% 29.94 in 10.0 mi West 19.6 mph - N/A   Partly Cloudy
6:56 PM 60.1 °F 50.0 °F 69% 29.94 in 10.0 mi West 13.8 mph - N/A   Partly Cloudy
7:56 PM 57.9 °F 50.0 °F 75% 29.94 in 10.0 mi West 13.8 mph - N/A   Partly Cloudy
8:56 PM 57.0 °F 50.0 °F 77% 29.95 in 10.0 mi West 12.7 mph - N/A   Partly Cloudy
9:56 PM 57.0 °F 50.0 °F 77% 29.96 in 10.0 mi West 12.7 mph - N/A   Partly Cloudy
10:56 PM 57.0 °F 50.0 °F 77% 29.96 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
11:56 PM 55.9 °F 50.0 °F 80% 29.96 in 10.0 mi WSW 8.1 mph - N/A   Scattered Clouds