San Francisco, CA

8:51 PM PST on February 21, 2017 (GMT -0800)
San Francisco International

Weather History for KSFO - December, 2011

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Thursday, December 1, 2011

  Actual Average Record
Temperature  
Mean Temperature 60 °F 52 °F  
Max Temperature 63 °F 59 °F 70 °F (1959)
Min Temperature 56 °F 46 °F 38 °F (1976)
Degree Days  
Heating Degree Days 5 13  
Month to date heating degree days 5 13  
Since 1 July heating degree days 630 577  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 115 164  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 33 °F    
Average Humidity 38    
Maximum Humidity 44    
Minimum Humidity 32    
Precipitation  
Precipitation 0.00 in 0.11 in 1.68 in (1951)
Month to date precipitation 0.00 0.11  
Year to date precipitation 16.46 16.73  
Since 1 July precipitation 2.74  
Sea Level Pressure  
Sea Level Pressure 30.15 in    
Wind  
Wind Speed 18 mph (North)    
Max Wind Speed 30 mph    
Max Gust Speed 36 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Dec. 01, 2011 Rise Set
Actual Time 7:05 AM PST 4:51 PM PST
Civil Twilight 6:36 AM PST 5:20 PM PST
Nautical Twilight 6:04 AM PST 5:52 PM PST
Astronomical Twilight 5:32 AM PST 6:24 PM PST
Moon 11:58 AM PST (12/1) 11:49 PM PST (12/1)
Length of Visible Light 10h 43m
Length of Day
9h 45m
Waxing Crescent, 44% of the Moon is Illuminated
Dec 1
Waxing Crescent
Dec 2
First Quarter
Dec 10
Full
Dec 17
Last Quarter
Dec 24
New

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 57.2 °F 33.8 °F 41% 30.24 in 10.0 mi North 13.8 mph - N/A   Clear
1:56 AM 57.2 °F 33.8 °F 41% 30.24 in 10.0 mi North 19.6 mph - N/A   Clear
2:56 AM 57.0 °F 33.1 °F 40% 30.24 in 10.0 mi North 21.9 mph 28.8 mph N/A   Clear
3:56 AM 57.0 °F 30.9 °F 37% 30.24 in 10.0 mi North 21.9 mph 28.8 mph N/A   Clear
4:56 AM 57.0 °F 32.0 °F 39% 30.24 in 10.0 mi North 21.9 mph 27.6 mph N/A   Clear
5:56 AM 57.0 °F 30.0 °F 36% 30.24 in 10.0 mi North 18.4 mph - N/A   Clear
6:56 AM 57.0 °F 30.0 °F 36% 30.23 in 10.0 mi North 21.9 mph - N/A   Partly Cloudy
7:56 AM 57.0 °F 34.0 °F 42% 30.24 in 10.0 mi North 21.9 mph - N/A   Clear
8:56 AM 57.0 °F 34.0 °F 42% 30.23 in 10.0 mi North 17.3 mph - N/A   Clear
9:56 AM 57.9 °F 33.1 °F 39% 30.22 in 10.0 mi North 20.7 mph - N/A   Clear
10:56 AM 60.1 °F 33.1 °F 36% 30.22 in 10.0 mi NNW 16.1 mph - N/A   Clear
11:56 AM 61.0 °F 32.0 °F 34% 30.16 in 10.0 mi NNW 21.9 mph - N/A   Clear
12:56 PM 62.1 °F 32.0 °F 32% 30.14 in 10.0 mi NNW 20.7 mph - N/A   Clear
1:56 PM 62.1 °F 33.1 °F 34% 30.11 in 10.0 mi North 20.7 mph - N/A   Clear
2:56 PM 63.0 °F 34.0 °F 34% 30.09 in 10.0 mi NNW 19.6 mph - N/A   Clear
3:56 PM 63.0 °F 34.0 °F 34% 30.09 in 10.0 mi NNW 19.6 mph - N/A   Clear
4:56 PM 60.1 °F 35.1 °F 39% 30.07 in 10.0 mi NNW 12.7 mph - N/A   Clear
5:56 PM 60.8 °F 35.6 °F 39% 30.07 in 10.0 mi NNW 18.4 mph - N/A   Clear
6:56 PM 61.0 °F 34.0 °F 36% 30.07 in 10.0 mi North 18.4 mph - N/A   Clear
7:56 PM 60.1 °F 36.0 °F 41% 30.08 in 10.0 mi NNW 16.1 mph - N/A   Clear
8:56 PM 59.0 °F 37.0 °F 44% 30.07 in 10.0 mi North 10.4 mph - N/A   Clear
9:56 PM 59.0 °F 35.6 °F 42% 30.06 in 10.0 mi North 13.8 mph - N/A   Clear
10:56 PM 59.0 °F 33.1 °F 38% 30.06 in 10.0 mi North 15.0 mph - N/A   Partly Cloudy
11:56 PM 57.2 °F 32.0 °F 38% 30.06 in 10.0 mi NW 3.5 mph - N/A   Scattered Clouds