Weather History for San Francisco, CA

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Sunday, October 30, 2011

  Actual Average Record
Temperature  
Mean Temperature 63 °F 59 °F  
Max Temperature 74 °F 68 °F 83 °F (1949)
Min Temperature 52 °F 51 °F 39 °F (1971)
Degree Days  
Heating Degree Days 2 6  
Month to date heating degree days 83 115  
Since 1 July heating degree days 292 281  
Cooling Degree Days 0 0  
Month to date cooling degree days 31 20  
Year to date cooling degree days 115 161  
Growing Degree Days 13 (Base 50)    
Moisture  
Dew Point 49 °F    
Average Humidity 69    
Maximum Humidity 93    
Minimum Humidity 44    
Precipitation  
Precipitation 0.00 in 0.05 in 1.03 in (1945)
Month to date precipitation 1.18 0.89  
Year to date precipitation 14.91 14.18  
Since 1 July precipitation 1.19 1.10  
Sea Level Pressure  
Sea Level Pressure 30.08 in    
Wind  
Wind Speed 8 mph (WNW)    
Max Wind Speed 22 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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Date:

Astronomy

Oct. 30, 2011 Rise Set
Actual Time 7:32 AM PDT 6:13 PM PDT
Civil Twilight 7:05 AM PDT 6:40 PM PDT
Nautical Twilight 6:34 AM PDT 7:11 PM PDT
Astronomical Twilight 6:03 AM PDT 7:41 PM PDT
Moon 11:53 AM PDT (10/30) 9:51 PM PDT (10/30)
Length of Visible Light 11h 35m
Length of Day
10h 41m
Waxing Crescent, 21% of the Moon is Illuminated
Oct 30
Waxing Crescent
Nov 2
First Quarter
Nov 10
Full
Nov 18
Last Quarter
Nov 24
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 55.9 °F 46.0 °F 69% 30.08 in 10.0 mi West 3.5 mph - N/A   Clear
1:56 AM 55.4 °F 46.4 °F 72% 30.08 in 10.0 mi West 3.5 mph - N/A   Clear
2:56 AM 55.4 °F 42.8 °F 63% 30.08 in 10.0 mi Calm Calm - N/A   Clear
3:56 AM 53.6 °F 46.4 °F 77% 30.08 in 10.0 mi West 3.5 mph - N/A   Partly Cloudy
4:56 AM 53.1 °F 39.0 °F 59% 30.08 in 10.0 mi SSW 3.5 mph - N/A   Partly Cloudy
5:56 AM 53.1 °F 41.0 °F 64% 30.08 in 10.0 mi SW 3.5 mph - N/A   Clear
6:56 AM 53.6 °F 41.0 °F 62% 30.09 in 10.0 mi Calm Calm - N/A   Clear
7:56 AM 55.0 °F 42.1 °F 62% 30.10 in 10.0 mi Calm Calm - N/A   Clear
8:56 AM 59.0 °F 48.0 °F 67% 30.12 in 10.0 mi Calm Calm - N/A   Clear
9:56 AM 63.0 °F 52.0 °F 67% 30.12 in 10.0 mi Calm Calm - N/A   Clear
10:56 AM 64.0 °F 53.1 °F 67% 30.12 in 10.0 mi NNE 3.5 mph - N/A   Clear
11:56 AM 66.0 °F 55.0 °F 68% 30.12 in 10.0 mi North 4.6 mph - N/A   Clear
12:56 PM 68.0 °F 55.0 °F 63% 30.09 in 10.0 mi North 3.5 mph - N/A   Clear
1:56 PM 68.0 °F 55.4 °F 64% 30.07 in 10.0 mi NNE 4.6 mph - N/A   Partly Cloudy
2:56 PM 73.0 °F 51.1 °F 46% 30.05 in 10.0 mi WNW 10.4 mph - N/A   Clear
3:56 PM 71.1 °F 48.9 °F 45% 30.05 in 10.0 mi West 15.0 mph - N/A   Clear
4:56 PM 68.0 °F 48.0 °F 49% 30.04 in 10.0 mi WNW 17.3 mph - N/A   Clear
5:56 PM 64.0 °F 50.0 °F 60% 30.04 in 10.0 mi WNW 17.3 mph - N/A   Clear
6:56 PM 60.1 °F 52.0 °F 75% 30.05 in 10.0 mi West 19.6 mph - N/A   Partly Cloudy
7:56 PM 59.0 °F 52.0 °F 78% 30.06 in 10.0 mi West 16.1 mph - N/A   Partly Cloudy
8:56 PM 55.9 °F 52.0 °F 87% 30.06 in 10.0 mi WNW 15.0 mph - N/A   Partly Cloudy
9:56 PM 55.0 °F 52.0 °F 89% 30.07 in 10.0 mi WNW 11.5 mph - N/A   Partly Cloudy
10:56 PM 55.9 °F 52.0 °F 87% 30.07 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
11:56 PM 54.0 °F 51.1 °F 90% 30.08 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy