Weather History for San Francisco, CA

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Thursday, March 7, 2013

  Actual Average Record
Temperature  
Mean Temperature 49 °F 54 °F  
Max Temperature 55 °F 62 °F 77 °F (1953)
Min Temperature 43 °F 47 °F 35 °F (1956)
Degree Days  
Heating Degree Days 16 11  
Month to date heating degree days 85 77  
Since 1 July heating degree days 1969 1883  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 41 °F    
Average Humidity 68    
Maximum Humidity 86    
Minimum Humidity 50    
Precipitation  
Precipitation 0.08 in 0.11 in 0.63 in (1968)
Month to date precipitation 0.28 0.83  
Year to date precipitation 1.15 9.08  
Since 1 July precipitation 12.15 16.65  
Sea Level Pressure  
Sea Level Pressure 29.93 in    
Wind  
Wind Speed 7 mph (WNW)    
Max Wind Speed 18 mph    
Max Gust Speed 21 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Mar. 07, 2013 Rise Set
Actual Time 6:31 AM PST 6:09 PM PST
Civil Twilight 6:05 AM PST 6:35 PM PST
Nautical Twilight 5:35 AM PST 7:05 PM PST
Astronomical Twilight 5:05 AM PST 7:36 PM PST
Moon 3:31 AM PST (3/7) 2:07 PM PST (3/7)
Length of Visible Light 12h 29m
Length of Day
11h 37m
Waning Crescent, 19% of the Moon is Illuminated
Mar 7
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
12:56 AM 46.0 °F - 37.9 °F 73% 30.01 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:56 AM 45.0 °F - 37.0 °F 74% 30.00 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:56 AM 44.1 °F - 37.9 °F 79% 29.98 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:56 AM 43.0 °F - 37.9 °F 82% 29.97 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:56 AM 45.0 °F 42.6 °F 37.9 °F 76% 29.97 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
5:56 AM 44.1 °F 40.1 °F 37.9 °F 79% 29.97 in 10.0 mi SSE 6.9 mph - N/A   Mostly Cloudy
6:56 AM 46.0 °F - 37.9 °F 73% 29.96 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:56 AM 46.9 °F - 39.0 °F 74% 29.96 in 10.0 mi East 4.6 mph - N/A   Mostly Cloudy
8:56 AM 48.0 °F - 41.0 °F 77% 29.97 in 10.0 mi SE 8.1 mph - N/A   Overcast
9:56 AM 48.9 °F - 42.1 °F 77% 29.96 in 10.0 mi East 6.9 mph - N/A   Mostly Cloudy
10:56 AM 50.0 °F - 41.0 °F 71% 29.95 in 10.0 mi East 6.9 mph - N/A   Overcast
11:56 AM 53.1 °F - 41.0 °F 64% 29.94 in 10.0 mi NNE 3.5 mph - N/A   Mostly Cloudy
12:56 PM 54.0 °F - 41.0 °F 62% 29.92 in 10.0 mi North 4.6 mph - N/A   Mostly Cloudy
1:56 PM 54.0 °F - 36.0 °F 51% 29.89 in 10.0 mi NNW 3.5 mph - N/A   Overcast
2:56 PM 53.1 °F - 39.9 °F 61% 29.88 in 10.0 mi WNW 9.2 mph - N/A   Overcast
3:56 PM 52.0 °F - 39.9 °F 63% 29.88 in 10.0 mi WNW 11.5 mph - N/A   Overcast
4:56 PM 51.1 °F - 42.1 °F 71% 29.88 in 10.0 mi WNW 10.4 mph - 0.00 in Rain Light Rain
5:56 PM 51.1 °F - 39.9 °F 66% 29.88 in 10.0 mi West 11.5 mph - 0.00 in   Overcast
6:56 PM 48.9 °F - 43.0 °F 80% 29.88 in 10.0 mi WNW 8.1 mph - 0.00 in   Overcast
7:56 PM 48.9 °F - 43.0 °F 80% 29.89 in 8.0 mi West 9.2 mph - 0.00 in Rain Light Rain
8:56 PM 48.0 °F - 44.1 °F 86% 29.89 in 10.0 mi West 10.4 mph - 0.03 in Rain Light Rain
9:39 PM 48.2 °F - 44.6 °F 87% 29.90 in 5.0 mi WNW 9.2 mph - 0.03 in Rain Light Rain
9:56 PM 48.0 °F - 44.1 °F 86% 29.90 in 8.0 mi West 12.7 mph - 0.04 in Rain Light Rain
10:56 PM 48.0 °F - 43.0 °F 83% 29.89 in 10.0 mi West 15.0 mph - 0.01 in Rain Light Rain
11:56 PM 48.0 °F - 43.0 °F 83% 29.88 in 10.0 mi West 12.7 mph - 0.00 in   Overcast