Weather History for San Francisco, CA

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Saturday, October 1, 2011

  Actual Average Record
Temperature  
Mean Temperature 67 °F 64 °F  
Max Temperature 73 °F 73 °F 97 °F (1980)
Min Temperature 61 °F 55 °F 42 °F (1950)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 0 2  
Since 1 July heating degree days 209 168  
Cooling Degree Days 2 1  
Month to date cooling degree days 2 1  
Year to date cooling degree days 86 142  
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 64    
Maximum Humidity 78    
Minimum Humidity 49    
Precipitation  
Precipitation 0.00 in 0.01 in 0.34 in (1976)
Month to date precipitation 0.00 0.01  
Year to date precipitation 13.73 13.30  
Since 1 July precipitation 0.01 0.22  
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 9 mph (SSW)    
Max Wind Speed 20 mph    
Max Gust Speed 23 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Oct. 01, 2011 Rise Set
Actual Time 7:04 AM PDT 6:52 PM PDT
Civil Twilight 6:38 AM PDT 7:18 PM PDT
Nautical Twilight 6:08 AM PDT 7:49 PM PDT
Astronomical Twilight 5:37 AM PDT 8:19 PM PDT
Moon 12:10 PM PDT (10/1) 10:02 PM PDT (10/1)
Length of Visible Light 12h 40m
Length of Day
11h 47m
Waxing Crescent, 25% of the Moon is Illuminated
Oct 1
Waxing Crescent
Oct 3
First Quarter
Oct 11
Full
Oct 19
Last Quarter
Oct 26
New

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 64.0 °F 55.0 °F 73% 29.96 in 10.0 mi South 4.6 mph - N/A   Overcast
1:56 AM 64.0 °F 55.0 °F 73% 29.97 in 10.0 mi SSE 9.2 mph - N/A   Overcast
2:52 AM 64.4 °F 55.4 °F 73% 29.96 in 10.0 mi South 6.9 mph - N/A   Overcast
2:56 AM 64.0 °F 55.9 °F 75% 29.96 in 10.0 mi South 8.1 mph - N/A   Overcast
3:56 AM 63.0 °F 55.0 °F 75% 29.97 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
4:52 AM 62.6 °F 53.6 °F 72% 29.97 in 10.0 mi South 6.9 mph - N/A   Scattered Clouds
4:56 AM 62.1 °F 53.1 °F 72% 29.97 in 10.0 mi South 6.9 mph - N/A   Scattered Clouds
5:56 AM 61.0 °F 54.0 °F 78% 29.97 in 10.0 mi SE 8.1 mph - N/A   Scattered Clouds
6:56 AM 61.0 °F 54.0 °F 78% 29.99 in 10.0 mi South 6.9 mph - N/A   Partly Cloudy
7:56 AM 62.1 °F 54.0 °F 75% 30.00 in 10.0 mi SSW 3.5 mph - N/A   Scattered Clouds
8:56 AM 64.0 °F 53.1 °F 67% 30.01 in 10.0 mi SSE 5.8 mph - N/A   Mostly Cloudy
9:56 AM 64.9 °F 53.1 °F 65% 30.03 in 10.0 mi Calm Calm - N/A   Overcast
10:56 AM 66.9 °F 54.0 °F 63% 30.04 in 10.0 mi SSW 9.2 mph - N/A   Overcast
11:56 AM 66.0 °F 55.0 °F 68% 30.04 in 10.0 mi SW 9.2 mph - N/A   Mostly Cloudy
12:56 PM 69.1 °F 53.1 °F 57% 30.04 in 10.0 mi South 11.5 mph 16.1 mph N/A   Scattered Clouds
1:56 PM 71.6 °F 53.6 °F 53% 30.02 in 10.0 mi SW 8.1 mph - N/A   Scattered Clouds
2:56 PM 71.6 °F 51.8 °F 50% 30.01 in 10.0 mi West 12.7 mph - N/A   Mostly Cloudy
3:56 PM 71.1 °F 53.1 °F 53% 30.01 in 10.0 mi SSW 13.8 mph - N/A   Mostly Cloudy
4:56 PM 70.0 °F 53.1 °F 55% 30.00 in 10.0 mi WSW 16.1 mph 23.0 mph N/A   Mostly Cloudy
5:56 PM 68.0 °F 54.0 °F 61% 29.99 in 10.0 mi WSW 16.1 mph - N/A   Mostly Cloudy
6:56 PM 66.0 °F 55.0 °F 68% 29.99 in 10.0 mi WSW 10.4 mph - N/A   Mostly Cloudy
7:56 PM 64.9 °F 55.0 °F 70% 30.00 in 10.0 mi WSW 8.1 mph - N/A   Scattered Clouds
8:56 PM 64.0 °F 55.9 °F 75% 30.01 in 10.0 mi West 4.6 mph - N/A   Scattered Clouds
9:56 PM 63.0 °F 55.0 °F 75% 30.02 in 10.0 mi WSW 6.9 mph - N/A   Partly Cloudy
10:56 PM 62.1 °F 55.9 °F 80% 30.04 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
11:56 PM 62.6 °F 55.4 °F 77% 30.03 in 10.0 mi West 10.4 mph - N/A   Scattered Clouds