Weather History for KSFO - March, 2013

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Friday, March 1, 2013

  Actual Average Record
Temperature  
Mean Temperature 59 °F 54 °F  
Max Temperature 71 °F 61 °F 74 °F (1959)
Min Temperature 46 °F 47 °F 35 °F (1955)
Degree Days  
Heating Degree Days 6 11  
Month to date heating degree days 6 11  
Since 1 July heating degree days 1890 1817  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 8 (Base 50)    
Moisture  
Dew Point 47 °F    
Average Humidity 75    
Maximum Humidity 100    
Minimum Humidity 49    
Precipitation  
Precipitation 0.00 in 0.13 in 1.06 in (1974)
Month to date precipitation 0.00 0.13  
Year to date precipitation 0.87 8.38  
Since 1 July precipitation 11.87  
Sea Level Pressure  
Sea Level Pressure 30.36 in    
Wind  
Wind Speed 5 mph (NNW)    
Max Wind Speed 20 mph    
Max Gust Speed 23 mph    
Visibility 6 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Mar. 01, 2013 Rise Set
Actual Time 6:40 AM PST 6:03 PM PST
Civil Twilight 6:14 AM PST 6:29 PM PST
Nautical Twilight 5:43 AM PST 7:00 PM PST
Astronomical Twilight 5:13 AM PST 7:30 PM PST
Moon 10:36 PM PST (3/1) 8:36 AM PST (3/1)
Length of Visible Light 12h 15m
Length of Day
11h 23m
Waning Gibbous, 82% of the Moon is Illuminated
Mar 1
Waning Gibbous
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter
Mar 27
Full

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 48.9 °F 45.0 °F 86% 30.44 in 10.0 mi Calm Calm - N/A Fog Partly Cloudy
1:56 AM 48.0 °F 44.1 °F 86% 30.44 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:56 AM 46.9 °F 43.0 °F 86% 30.43 in 10.0 mi Calm Calm - N/A Fog Partly Cloudy
3:56 AM 46.9 °F 43.0 °F 86% 30.43 in 9.0 mi Calm Calm - N/A Fog Partly Cloudy
4:56 AM 46.9 °F 44.1 °F 90% 30.43 in 6.0 mi Calm Calm - N/A Fog Patches of Fog
5:15 AM 46.4 °F 44.6 °F 93% 30.42 in 4.0 mi Calm Calm - N/A Fog Patches of Fog
5:34 AM 48.2 °F 46.4 °F 93% 30.42 in 3.0 mi Calm Calm - N/A Fog Patches of Fog
5:43 AM 48.2 °F 46.4 °F 93% 30.42 in 0.2 mi Calm Calm - N/A Fog Fog
5:56 AM 48.0 °F 46.0 °F 93% 30.42 in 0.2 mi Calm Calm - N/A Fog Fog
6:56 AM 48.0 °F 46.9 °F 96% 30.41 in 0.2 mi Calm Calm - N/A Fog Fog
7:31 AM 48.2 °F 46.4 °F 93% 30.41 in 0.2 mi ESE 4.6 mph - N/A Fog Fog
7:44 AM 48.2 °F 48.2 °F 100% 30.40 in 0.1 mi Calm Calm - N/A Fog Fog
7:56 AM 48.9 °F 46.9 °F 93% 30.40 in 0.1 mi SSE 4.6 mph - N/A Fog Fog
8:56 AM 48.9 °F 48.0 °F 97% 30.40 in 0.2 mi Calm Calm - N/A Fog Fog
9:20 AM 50.0 °F 48.2 °F 94% 30.40 in 0.5 mi North 3.5 mph - N/A Fog Fog
9:24 AM 50.0 °F 48.2 °F 94% 30.40 in 0.5 mi NNW 3.5 mph - N/A Fog Fog
9:56 AM 51.1 °F 48.9 °F 92% 30.40 in 0.5 mi NNE 5.8 mph - N/A Fog Fog
10:56 AM 51.1 °F 48.9 °F 92% 30.39 in 0.8 mi NE 3.5 mph - N/A Fog Patches of Fog
10:58 AM 51.8 °F 48.2 °F 88% 30.39 in 0.2 mi ENE 3.5 mph - N/A Fog Patches of Fog
11:05 AM 51.8 °F 48.2 °F 88% 30.39 in 9.0 mi Calm Calm - N/A Fog Patches of Fog
11:56 AM 52.0 °F 50.0 °F 93% 30.37 in 9.0 mi ENE 3.5 mph - N/A   Partly Cloudy
12:56 PM 57.0 °F 51.1 °F 81% 30.33 in 10.0 mi NNE 3.5 mph - N/A   Partly Cloudy
1:56 PM 64.0 °F 50.0 °F 60% 30.30 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:56 PM 68.0 °F 48.0 °F 49% 30.27 in 10.0 mi NNW 5.8 mph - N/A   Mostly Cloudy
3:56 PM 66.0 °F 48.0 °F 52% 30.27 in 10.0 mi West 17.3 mph - N/A   Mostly Cloudy
4:56 PM 62.1 °F 46.0 °F 56% 30.25 in 10.0 mi West 15.0 mph - N/A   Mostly Cloudy
5:56 PM 61.0 °F 45.0 °F 56% 30.25 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
6:56 PM 57.0 °F 46.0 °F 67% 30.26 in 10.0 mi West 16.1 mph - N/A   Scattered Clouds
7:56 PM 55.0 °F 46.0 °F 72% 30.27 in 10.0 mi West 11.5 mph - N/A   Scattered Clouds
8:56 PM 52.0 °F 46.0 °F 80% 30.27 in 10.0 mi WNW 4.6 mph - N/A   Partly Cloudy
9:56 PM 51.1 °F 45.0 °F 80% 30.27 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
10:56 PM 51.1 °F 45.0 °F 80% 30.26 in 10.0 mi Calm Calm - N/A   Partly Cloudy
11:56 PM 53.1 °F 46.9 °F 80% 30.25 in 10.0 mi Calm Calm - N/A   Clear