San Francisco, CA

8:20 AM PST on January 19, 2018 (GMT -0800)
San Francisco International

Weather History for KSFO - March, 2013

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Monday, March 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 53 °F 55 °F  
Max Temperature 60 °F 62 °F 77 °F (2004)
Min Temperature 45 °F 48 °F 37 °F (1973)
Degree Days  
Heating Degree Days 12 10  
Month to date heating degree days 198 187  
Since 1 July heating degree days 2082 1993  
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 43 °F    
Average Humidity 69    
Maximum Humidity 83    
Minimum Humidity 55    
Precipitation  
Precipitation 0.00 in 0.09 in 0.72 in (1989)
Month to date precipitation 0.28 1.95  
Year to date precipitation 1.15 10.20  
Since 1 July precipitation 12.15  
Sea Level Pressure  
Sea Level Pressure 30.10 in    
Wind  
Wind Speed 7 mph (WNW)    
Max Wind Speed 24 mph    
Max Gust Speed 28 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Mar. 18, 2013 Rise Set
Actual Time 7:15 AM PDT 7:19 PM PDT
Civil Twilight 6:49 AM PDT 7:45 PM PDT
Nautical Twilight 6:18 AM PDT 8:16 PM PDT
Astronomical Twilight 5:48 AM PDT 8:47 PM PDT
Moon 11:25 AM PDT (3/18) 1:17 AM PDT (3/18)
Length of Visible Light 12h 56m
Length of Day
12h 04m
Waxing Crescent, 41% of the Moon is Illuminated
Mar 18
Waxing Crescent
Mar 19
First Quarter
Mar 27
Full
Apr 2
Last Quarter
Apr 10
New

Hourly Weather History & Observations

Time (PDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 48.0 °F - 41.0 °F 77% 30.09 in 10.0 mi WNW 6.9 mph - N/A   Partly Cloudy
1:56 AM 46.9 °F - 41.0 °F 80% 30.10 in 10.0 mi WNW 4.6 mph - N/A   Partly Cloudy
2:56 AM 46.0 °F - 39.0 °F 76% 30.09 in 10.0 mi Calm Calm - N/A   Partly Cloudy
3:56 AM 46.9 °F - 41.0 °F 80% 30.07 in 10.0 mi West 3.5 mph - N/A   Partly Cloudy
4:56 AM 45.0 °F 41.8 °F 39.0 °F 80% 30.06 in 10.0 mi West 5.8 mph - N/A   Clear
5:56 AM 46.0 °F 41.9 °F 41.0 °F 83% 30.07 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
6:56 AM 46.9 °F - 41.0 °F 80% 30.09 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:56 AM 48.0 °F - 42.1 °F 80% 30.11 in 10.0 mi NW 3.5 mph - N/A   Mostly Cloudy
8:56 AM 51.1 °F - 43.0 °F 74% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:56 AM 52.0 °F - 43.0 °F 71% 30.13 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:56 AM 53.1 °F - 44.1 °F 71% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:56 AM 59.0 °F - 44.1 °F 58% 30.12 in 10.0 mi WNW 9.2 mph - N/A   Mostly Cloudy
12:56 PM 57.0 °F - 46.0 °F 67% 30.11 in 10.0 mi NE 5.8 mph - N/A   Mostly Cloudy
1:56 PM 57.0 °F - 46.0 °F 67% 30.08 in 10.0 mi NE 4.6 mph - N/A   Mostly Cloudy
2:56 PM 59.0 °F - 44.1 °F 58% 30.07 in 10.0 mi WNW 9.2 mph - N/A   Overcast
3:56 PM 60.1 °F - 44.1 °F 55% 30.06 in 10.0 mi WNW 11.5 mph - N/A   Mostly Cloudy
4:56 PM 57.0 °F - 45.0 °F 64% 30.05 in 10.0 mi WNW 11.5 mph - N/A   Overcast
5:56 PM 57.0 °F - 44.1 °F 62% 30.06 in 10.0 mi WNW 12.7 mph - N/A   Overcast
6:56 PM 54.0 °F - 44.1 °F 69% 30.07 in 10.0 mi NW 12.7 mph - N/A   Overcast
7:56 PM 52.0 °F - 43.0 °F 71% 30.12 in 10.0 mi West 21.9 mph - N/A   Overcast
8:56 PM 52.0 °F - 44.1 °F 74% 30.11 in 10.0 mi WSW 10.4 mph - N/A   Overcast
9:56 PM 51.1 °F - 43.0 °F 74% 30.12 in 10.0 mi West 5.8 mph - N/A   Overcast
10:56 PM 52.0 °F - 44.1 °F 74% 30.15 in 10.0 mi West 15.0 mph - N/A   Overcast
11:56 PM 50.0 °F - 42.1 °F 74% 30.12 in 10.0 mi West 5.8 mph - N/A   Mostly Cloudy