Weather History for San Francisco, CA

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Friday, August 23, 2013

  Actual Average Record
Temperature  
Mean Temperature 62 °F 65 °F  
Max Temperature 66 °F 73 °F 92 °F (2010)
Min Temperature 57 °F 56 °F 49 °F (1953)
Degree Days  
Heating Degree Days 3 1  
Month to date heating degree days 35 34  
Since 1 June heating degree days 201 204  
Since 1 July heating degree days 113 99  
Cooling Degree Days 0 1  
Month to date cooling degree days 16 23  
Year to date cooling degree days 88 87  
Since 1 June cooling degree days 61 68  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 72    
Maximum Humidity 80    
Minimum Humidity 63    
Precipitation  
Precipitation 0.00 in 0.01 in 0.03 in (1864)
Month to date precipitation T 0.03  
Year to date precipitation 1.89 13.11  
Since 1 July precipitation T 0.03  
Sea Level Pressure  
Sea Level Pressure 29.90 in    
Wind  
Wind Speed 13 mph (West)    
Max Wind Speed 25 mph    
Max Gust Speed 31 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Aug. 23, 2013 Rise Set
Actual Time 6:32 AM PDT 7:50 PM PDT
Civil Twilight 6:05 AM PDT 8:18 PM PDT
Nautical Twilight 5:32 AM PDT 8:50 PM PDT
Astronomical Twilight 4:58 AM PDT 9:24 PM PDT
Moon 9:18 PM PDT 9:28 AM PDT
Length of Visible Light 14h 13m
Length of Day
13h 18m
Waning Gibbous, 91% of the Moon is Illuminated
Aug 23
Waning Gibbous
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter
Sep 19
Full

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 60.1 °F 53.1 °F 78% 29.95 in 10.0 mi West 13.8 mph - N/A   Overcast
1:13 AM 60.8 °F 53.6 °F 77% 29.94 in 10.0 mi WSW 11.5 mph - N/A   Overcast
1:56 AM 60.1 °F 53.1 °F 78% 29.94 in 10.0 mi West 6.9 mph - N/A   Overcast
2:56 AM 60.1 °F 53.1 °F 78% 29.93 in 10.0 mi WSW 8.1 mph - N/A   Overcast
3:56 AM 60.1 °F 53.1 °F 78% 29.93 in 10.0 mi West 9.2 mph - N/A   Overcast
4:56 AM 59.0 °F 53.1 °F 81% 29.92 in 10.0 mi WNW 5.8 mph - N/A   Overcast
5:56 AM 59.0 °F 53.1 °F 81% 29.93 in 10.0 mi WNW 10.4 mph - N/A   Overcast
6:56 AM 57.9 °F 51.1 °F 78% 29.94 in 10.0 mi WSW 10.4 mph - N/A   Overcast
7:56 AM 57.9 °F 52.0 °F 81% 29.94 in 10.0 mi West 11.5 mph - N/A   Overcast
8:56 AM 57.0 °F 52.0 °F 83% 29.95 in 10.0 mi WNW 12.7 mph - N/A   Overcast
9:56 AM 57.9 °F 52.0 °F 81% 29.96 in 10.0 mi WSW 9.2 mph - N/A   Overcast
10:56 AM 60.1 °F 53.1 °F 78% 29.95 in 10.0 mi West 9.2 mph - N/A   Overcast
11:56 AM 63.0 °F 53.1 °F 70% 29.94 in 10.0 mi WNW 10.4 mph - N/A   Mostly Cloudy
12:17 PM 64.4 °F 53.6 °F 68% 29.93 in 10.0 mi WNW 13.8 mph - N/A   Scattered Clouds
12:56 PM 64.0 °F 53.1 °F 67% 29.92 in 10.0 mi WNW 20.7 mph 24.2 mph N/A   Partly Cloudy
1:56 PM 64.9 °F 52.0 °F 63% 29.92 in 10.0 mi West 19.6 mph - N/A   Partly Cloudy
2:56 PM 64.9 °F 52.0 °F 63% 29.90 in 10.0 mi West 24.2 mph - N/A   Partly Cloudy
3:56 PM 63.0 °F 53.1 °F 70% 29.88 in 10.0 mi West 20.7 mph 26.5 mph N/A   Mostly Cloudy
4:56 PM 64.0 °F 53.1 °F 67% 29.86 in 10.0 mi West 17.3 mph - N/A   Scattered Clouds
5:56 PM 63.0 °F 53.1 °F 70% 29.86 in 10.0 mi West 11.5 mph 20.7 mph N/A   Scattered Clouds
6:56 PM 62.1 °F 52.0 °F 70% 29.84 in 10.0 mi West 18.4 mph 26.5 mph N/A   Scattered Clouds
7:56 PM 60.1 °F 52.0 °F 75% 29.84 in 10.0 mi West 13.8 mph 25.3 mph N/A   Scattered Clouds
8:56 PM 59.0 °F 53.1 °F 81% 29.85 in 10.0 mi West 11.5 mph 23.0 mph N/A   Scattered Clouds
9:56 PM 60.1 °F 53.1 °F 78% 29.86 in 10.0 mi West 13.8 mph - N/A   Scattered Clouds
10:09 PM 60.8 °F 53.6 °F 77% 29.86 in 10.0 mi West 11.5 mph 19.6 mph N/A   Mostly Cloudy
10:24 PM 59.0 °F 53.6 °F 82% 29.86 in 10.0 mi West 10.4 mph - N/A   Scattered Clouds
10:56 PM 59.0 °F 53.1 °F 81% 29.87 in 10.0 mi West 10.4 mph - N/A   Scattered Clouds
11:56 PM 59.0 °F 53.1 °F 81% 29.87 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds