Weather History for San Francisco, CA

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Wednesday, August 1, 2012

  Actual Average Record
Temperature  
Mean Temperature 62 °F 64 °F  
Max Temperature 70 °F 72 °F 100 °F (1993)
Min Temperature 53 °F 56 °F 48 °F (1951)
Degree Days  
Heating Degree Days 3 2  
Month to date heating degree days 3 2  
Since 1 June heating degree days 196 172  
Since 1 July heating degree days 81 67  
Cooling Degree Days 0 1  
Month to date cooling degree days 0 1  
Year to date cooling degree days 28 65  
Since 1 June cooling degree days 21 46  
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 51 °F    
Average Humidity 71    
Maximum Humidity 89    
Minimum Humidity 53    
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in (2014)
Month to date precipitation 0.00 0.00  
Year to date precipitation 10.46 13.08  
Since 1 July precipitation T T  
Sea Level Pressure  
Sea Level Pressure 30.02 in    
Wind  
Wind Speed 12 mph (WNW)    
Max Wind Speed 25 mph    
Max Gust Speed 30 mph    
Visibility 10 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Aug. 01, 2012 Rise Set
Actual Time 6:13 AM PDT 8:17 PM PDT
Civil Twilight 5:44 AM PDT 8:46 PM PDT
Nautical Twilight 5:09 AM PDT 9:21 PM PDT
Astronomical Twilight 4:31 AM PDT 9:59 PM PDT
Moon 7:52 PM PDT (8/1) 5:48 AM PDT (8/1)
Length of Visible Light 15h 01m
Length of Day
14h 03m
Full, 100% of the Moon is Illuminated
Aug 1
Full
Aug 1
Full
Aug 9
Last Quarter
Aug 17
New
Aug 24
First 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 55.0 °F 50.0 °F 83% 30.00 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
1:56 AM 55.0 °F 50.0 °F 83% 30.00 in 10.0 mi WNW 9.2 mph - N/A   Partly Cloudy
2:56 AM 54.0 °F 50.0 °F 86% 30.01 in 10.0 mi WNW 4.6 mph - N/A   Partly Cloudy
3:56 AM 54.0 °F 50.0 °F 86% 30.01 in 10.0 mi West 8.1 mph - N/A   Partly Cloudy
4:56 AM 54.0 °F 50.0 °F 86% 30.01 in 10.0 mi WNW 6.9 mph - N/A   Partly Cloudy
5:56 AM 53.1 °F 48.9 °F 86% 30.03 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
6:56 AM 54.0 °F 50.0 °F 86% 30.04 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
7:56 AM 57.0 °F 51.1 °F 81% 30.06 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:56 AM 60.1 °F 51.1 °F 72% 30.06 in 10.0 mi NNW 6.9 mph - N/A   Partly Cloudy
9:56 AM 61.0 °F 51.1 °F 70% 30.06 in 10.0 mi NW 11.5 mph - N/A   Partly Cloudy
10:56 AM 63.0 °F 51.1 °F 65% 30.06 in 10.0 mi NW 10.4 mph - N/A   Partly Cloudy
11:56 AM 66.0 °F 53.1 °F 63% 30.06 in 10.0 mi North 5.8 mph - N/A   Partly Cloudy
12:56 PM 66.9 °F 54.0 °F 63% 30.04 in 10.0 mi NNE 8.1 mph - N/A   Partly Cloudy
1:56 PM 69.1 °F 52.0 °F 54% 30.03 in 10.0 mi NW 13.8 mph - N/A   Partly Cloudy
2:56 PM 66.9 °F 51.1 °F 57% 30.01 in 10.0 mi WNW 17.3 mph - N/A   Partly Cloudy
3:56 PM 64.0 °F 51.1 °F 63% 30.01 in 10.0 mi WNW 20.7 mph - N/A   Partly Cloudy
4:56 PM 63.0 °F 51.1 °F 65% 30.00 in 10.0 mi WNW 21.9 mph - N/A   Partly Cloudy
5:56 PM 61.0 °F 50.0 °F 67% 29.98 in 10.0 mi WNW 21.9 mph - N/A   Partly Cloudy
6:56 PM 59.0 °F 50.0 °F 72% 29.98 in 10.0 mi WNW 19.6 mph - N/A   Partly Cloudy
7:56 PM 55.9 °F 50.0 °F 80% 29.99 in 9.0 mi WNW 18.4 mph - N/A Fog Partly Cloudy
8:56 PM 55.0 °F 50.0 °F 83% 29.99 in 9.0 mi WNW 16.1 mph - N/A Fog Partly Cloudy
9:56 PM 55.0 °F 50.0 °F 83% 30.01 in 10.0 mi WNW 11.5 mph - N/A   Partly Cloudy
10:56 PM 55.0 °F 50.0 °F 83% 30.01 in 10.0 mi WNW 11.5 mph - N/A   Partly Cloudy
11:56 PM 55.0 °F 51.1 °F 86% 30.00 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy