Weather History for San Francisco, CA

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Saturday, March 9, 2013

  Actual Average Record
Temperature  
Mean Temperature 53 °F 55 °F  
Max Temperature 61 °F 62 °F 75 °F (2004)
Min Temperature 44 °F 48 °F 37 °F (1974)
Degree Days  
Heating Degree Days 12 10  
Month to date heating degree days 111 97  
Since 1 July heating degree days 1995 1903  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 42 °F    
Average Humidity 65    
Maximum Humidity 83    
Minimum Humidity 46    
Precipitation  
Precipitation 0.00 in 0.11 in 0.91 in (1995)
Month to date precipitation 0.28 1.05  
Year to date precipitation 1.15 9.30  
Since 1 July precipitation 12.15 16.87  
Sea Level Pressure  
Sea Level Pressure 30.23 in    
Wind  
Wind Speed 11 mph (WNW)    
Max Wind Speed 29 mph    
Max Gust Speed 33 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Mar. 09, 2013 Rise Set
Actual Time 6:28 AM PST 6:11 PM PST
Civil Twilight 6:02 AM PST 6:37 PM PST
Nautical Twilight 5:32 AM PST 7:07 PM PST
Astronomical Twilight 5:02 AM PST 7:38 PM PST
Moon 4:54 AM PST (3/9) 4:20 PM PST (3/9)
Length of Visible Light 12h 34m
Length of Day
11h 42m
Waning Crescent, 5% of the Moon is Illuminated
Mar 9
Waning Crescent
Mar 11
New
Mar 19
First Quarter
Mar 27
Full
Apr 2
Last Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:34 AM 48.2 °F - 41.0 °F 76% 30.08 in 10.0 mi West 24.2 mph 32.2 mph N/A   Scattered Clouds
12:56 AM 48.0 °F - 41.0 °F 77% 30.10 in 10.0 mi West 20.7 mph 29.9 mph N/A   Scattered Clouds
1:15 AM 48.2 °F - 41.0 °F 76% 30.10 in 10.0 mi West 20.7 mph 28.8 mph N/A   Mostly Cloudy
1:56 AM 48.0 °F - 41.0 °F 77% 30.11 in 10.0 mi West 17.3 mph - N/A   Mostly Cloudy
2:41 AM 46.4 °F 41.1 °F 41.0 °F 81% 30.10 in 10.0 mi West 11.5 mph - N/A   Partly Cloudy
2:56 AM 46.9 °F - 41.0 °F 80% 30.10 in 10.0 mi West 10.4 mph - N/A   Clear
3:56 AM 46.9 °F - 39.9 °F 77% 30.12 in 10.0 mi WSW 9.2 mph - N/A   Clear
4:56 AM 46.0 °F 41.9 °F 39.9 °F 79% 30.16 in 10.0 mi West 8.1 mph - N/A   Clear
5:56 AM 44.1 °F 39.5 °F 39.0 °F 82% 30.20 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
6:56 AM 45.0 °F 41.8 °F 39.0 °F 80% 30.22 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
7:56 AM 48.9 °F - 42.1 °F 77% 30.24 in 10.0 mi NNW 5.8 mph - N/A   Partly Cloudy
8:56 AM 51.1 °F - 43.0 °F 74% 30.27 in 10.0 mi NNE 3.5 mph - N/A   Partly Cloudy
9:56 AM 52.0 °F - 41.0 °F 66% 30.28 in 10.0 mi NE 3.5 mph - N/A   Partly Cloudy
10:56 AM 53.1 °F - 42.1 °F 66% 30.29 in 10.0 mi NE 4.6 mph - N/A   Partly Cloudy
11:56 AM 55.0 °F - 42.1 °F 62% 30.29 in 10.0 mi Calm Calm - N/A   Partly Cloudy
12:56 PM 61.0 °F - 39.0 °F 44% 30.29 in 10.0 mi WNW 13.8 mph - N/A   Partly Cloudy
1:56 PM 57.9 °F - 42.1 °F 56% 30.28 in 10.0 mi West 18.4 mph - N/A   Partly Cloudy
2:56 PM 57.9 °F - 44.1 °F 60% 30.29 in 10.0 mi West 20.7 mph - N/A   Clear
3:56 PM 59.0 °F - 42.1 °F 53% 30.27 in 10.0 mi West 16.1 mph - N/A   Partly Cloudy
4:56 PM 57.9 °F - 41.0 °F 53% 30.27 in 10.0 mi West 15.0 mph - N/A   Partly Cloudy
5:56 PM 55.0 °F - 42.1 °F 62% 30.27 in 10.0 mi West 18.4 mph - N/A   Partly Cloudy
6:56 PM 53.1 °F - 42.1 °F 66% 30.29 in 10.0 mi West 18.4 mph - N/A   Partly Cloudy
7:56 PM 52.0 °F - 43.0 °F 71% 30.29 in 10.0 mi West 15.0 mph - N/A   Clear
8:56 PM 51.1 °F - 43.0 °F 74% 30.30 in 10.0 mi WNW 9.2 mph - N/A   Clear
9:56 PM 51.1 °F - 43.0 °F 74% 30.32 in 10.0 mi WNW 12.7 mph - N/A   Scattered Clouds
10:56 PM 50.0 °F - 44.1 °F 80% 30.31 in 10.0 mi West 4.6 mph - N/A   Clear
11:56 PM 50.0 °F - 44.1 °F 80% 30.32 in 10.0 mi WNW 13.8 mph - N/A   Partly Cloudy