Weather History for San Francisco, CA

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Friday, February 24, 2012

  Actual Average Record
Temperature  
Mean Temperature 59 °F 54 °F  
Max Temperature 70 °F 61 °F 74 °F (1991)
Min Temperature 47 °F 47 °F 35 °F (1955)
Degree Days  
Heating Degree Days 6 11  
Month to date heating degree days 282 294  
Since 1 July heating degree days 1830 1761  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 9 (Base 50)    
Moisture  
Dew Point 37 °F    
Average Humidity 50    
Maximum Humidity 77    
Minimum Humidity 22    
Precipitation  
Precipitation 0.00 in 0.15 in 1.51 in (1958)
Month to date precipitation 0.42 3.51  
Year to date precipitation 2.58 7.70  
Since 1 July precipitation 5.45 15.27  
Sea Level Pressure  
Sea Level Pressure 30.10 in    
Wind  
Wind Speed 10 mph (WNW)    
Max Wind Speed 35 mph    
Max Gust Speed 44 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 24, 2012 Rise Set
Actual Time 6:48 AM PST 5:57 PM PST
Civil Twilight 6:21 AM PST 6:24 PM PST
Nautical Twilight 5:51 AM PST 6:54 PM PST
Astronomical Twilight 5:21 AM PST 7:25 PM PST
Moon 7:49 AM PST (2/24) 9:01 PM PST (2/24)
Length of Visible Light 12h 02m
Length of Day
11h 09m
Waxing Crescent, 8% of the Moon is Illuminated
Feb 24
Waxing Crescent
Feb 29
First Quarter
Mar 8
Full
Mar 14
Last Quarter
Mar 22
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 60.1 °F 37.9 °F 44% 30.01 in 10.0 mi North 8.1 mph - N/A   Clear
1:56 AM 57.9 °F 32.0 °F 37% 30.01 in 10.0 mi Calm Calm - N/A   Clear
2:56 AM 53.1 °F 37.0 °F 55% 30.01 in 10.0 mi Calm Calm - N/A   Clear
3:56 AM 51.1 °F 39.0 °F 63% 30.01 in 10.0 mi WNW 3.5 mph - N/A   Partly Cloudy
4:56 AM 50.0 °F 34.0 °F 54% 30.03 in 10.0 mi Calm Calm - N/A   Clear
5:56 AM 48.0 °F 35.1 °F 61% 30.04 in 10.0 mi SSW 3.5 mph - N/A   Clear
6:56 AM 50.0 °F 32.0 °F 50% 30.05 in 10.0 mi Calm Calm - N/A   Clear
7:56 AM 55.0 °F 27.0 °F 34% 30.06 in 10.0 mi Calm Calm - N/A   Clear
8:56 AM 61.0 °F 30.9 °F 32% 30.08 in 10.0 mi ESE 5.8 mph - N/A   Clear
9:56 AM 63.0 °F 37.9 °F 40% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:56 AM 61.0 °F 42.1 °F 50% 30.09 in 10.0 mi East 4.6 mph - N/A   Clear
11:56 AM 66.0 °F 26.1 °F 22% 30.09 in 10.0 mi Calm Calm - N/A   Clear
12:56 PM 66.9 °F 27.0 °F 22% 30.07 in 10.0 mi NE 3.5 mph - N/A   Clear
1:56 PM 70.0 °F 36.0 °F 29% 30.06 in 10.0 mi WNW 10.4 mph - N/A   Clear
2:56 PM 68.0 °F 30.9 °F 25% 30.07 in 10.0 mi WNW 15.0 mph - N/A   Clear
3:56 PM 63.0 °F 39.0 °F 41% 30.09 in 10.0 mi West 20.7 mph - N/A   Partly Cloudy
4:56 PM 55.9 °F 44.1 °F 64% 30.09 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
5:56 PM 52.0 °F 43.0 °F 71% 30.12 in 10.0 mi WSW 11.5 mph 19.6 mph N/A   Scattered Clouds
6:56 PM 53.1 °F 41.0 °F 64% 30.12 in 10.0 mi West 31.1 mph 38.0 mph N/A   Scattered Clouds
7:56 PM 53.1 °F 37.0 °F 55% 30.14 in 10.0 mi West 27.6 mph 38.0 mph N/A   Partly Cloudy
8:56 PM 52.0 °F 39.9 °F 63% 30.19 in 10.0 mi West 26.5 mph 34.5 mph N/A   Partly Cloudy
9:56 PM 51.1 °F 43.0 °F 74% 30.23 in 10.0 mi West 24.2 mph - N/A   Scattered Clouds
10:34 PM 51.8 °F 44.6 °F 76% 30.23 in 10.0 mi West 20.7 mph - N/A   Mostly Cloudy
10:56 PM 51.1 °F 45.0 °F 80% 30.23 in 10.0 mi WNW 19.6 mph 25.3 mph N/A   Scattered Clouds
11:33 PM 51.8 °F 44.6 °F 76% 30.23 in 10.0 mi WNW 15.0 mph - N/A   Mostly Cloudy
11:56 PM 51.1 °F 43.0 °F 74% 30.24 in 10.0 mi West 18.4 mph 27.6 mph N/A   Mostly Cloudy