San Francisco, CA

9:24 PM PDT on August 31, 2016 (GMT -0700)
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Weather History for KSFO - March, 2012

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Saturday, March 17, 2012

  Actual Average Record
Temperature  
Mean Temperature 48 °F 55 °F  
Max Temperature 52 °F 62 °F 82 °F (2004)
Min Temperature 43 °F 48 °F 36 °F (1966)
Degree Days  
Heating Degree Days 17 10  
Month to date heating degree days 197 177  
Since 1 July heating degree days 2108 1983  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 40 °F    
Average Humidity 76    
Maximum Humidity 92    
Minimum Humidity 59    
Precipitation  
Precipitation 0.00 in 0.09 in 0.68 in (1991)
Month to date precipitation 2.21 1.86  
Year to date precipitation 5.03 10.11  
Since 1 July precipitation 7.90  
Sea Level Pressure  
Sea Level Pressure 29.62 in    
Wind  
Wind Speed 16 mph (WNW)    
Max Wind Speed 37 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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Daily Weather History Graph

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Date:

Astronomy

Mar. 17, 2012 Rise Set
Actual Time 7:16 AM PDT 7:19 PM PDT
Civil Twilight 6:50 AM PDT 7:45 PM PDT
Nautical Twilight 6:20 AM PDT 8:15 PM PDT
Astronomical Twilight 5:49 AM PDT 8:46 PM PDT
Moon 4:16 AM PDT (3/17) 2:53 PM PDT (3/17)
Length of Visible Light 12h 54m
Length of Day
12h 02m
Waning Crescent, 22% of the Moon is Illuminated
Mar 17
Waning Crescent
Mar 22
New
Mar 30
First Quarter
Apr 6
Full
Apr 13
Last Quarter

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 - 43.0 °F 83% 29.74 in 10.0 mi SW 6.9 mph - N/A   Scattered Clouds
1:56 AM 48.0 °F - 42.1 °F 80% 29.73 in 10.0 mi WNW 4.6 mph - N/A   Partly Cloudy
2:56 AM 46.0 °F - 42.1 °F 86% 29.69 in 10.0 mi Calm Calm - N/A   Clear
3:56 AM 45.0 °F 43.5 °F 42.1 °F 90% 29.67 in 10.0 mi SSW 3.5 mph - N/A   Mostly Cloudy
4:56 AM 45.0 °F - 42.1 °F 90% 29.64 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:56 AM 44.1 °F 42.5 °F 39.9 °F 85% 29.63 in 10.0 mi SW 3.5 mph - N/A   Mostly Cloudy
6:56 AM 46.9 °F - 43.0 °F 86% 29.61 in 10.0 mi North 8.1 mph - N/A   Mostly Cloudy
7:56 AM 48.0 °F - 43.0 °F 83% 29.59 in 10.0 mi North 8.1 mph - N/A   Mostly Cloudy
8:56 AM 48.0 °F - 43.0 °F 83% 29.58 in 10.0 mi NNW 6.9 mph - N/A   Mostly Cloudy
9:56 AM 48.0 °F - 42.1 °F 80% 29.59 in 10.0 mi NNW 6.9 mph - N/A   Mostly Cloudy
10:56 AM 48.0 °F - 42.1 °F 80% 29.59 in 10.0 mi North 10.4 mph - N/A   Overcast
11:56 AM 48.0 °F - 41.0 °F 77% 29.58 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
12:56 PM 50.0 °F - 39.0 °F 66% 29.57 in 10.0 mi West 11.5 mph - N/A   Overcast
1:56 PM 50.0 °F - 39.0 °F 66% 29.56 in 10.0 mi WNW 18.4 mph - N/A   Overcast
2:56 PM 51.8 °F - 37.4 °F 58% 29.56 in 10.0 mi West 25.3 mph 29.9 mph N/A   Overcast
3:56 PM 51.1 °F - 37.9 °F 61% 29.56 in 10.0 mi West 28.8 mph 38.0 mph N/A   Overcast
4:56 PM 51.1 °F - 37.9 °F 61% 29.58 in 10.0 mi WNW 25.3 mph 35.7 mph N/A   Overcast
5:56 PM 50.0 °F - 39.0 °F 66% 29.57 in 10.0 mi West 28.8 mph 38.0 mph N/A   Overcast
6:56 PM 48.9 °F - 37.9 °F 66% 29.59 in 10.0 mi West 24.2 mph 38.0 mph N/A   Mostly Cloudy
7:56 PM 48.0 °F - 37.9 °F 68% 29.61 in 10.0 mi West 34.5 mph 41.4 mph N/A   Mostly Cloudy
8:56 PM 46.9 °F - 36.0 °F 66% 29.63 in 10.0 mi WNW 28.8 mph 36.8 mph N/A   Mostly Cloudy
9:56 PM 46.4 °F 37.5 °F 33.8 °F 62% 29.65 in 10.0 mi WNW 27.6 mph 42.6 mph N/A   Mostly Cloudy
10:56 PM 46.9 °F - 36.0 °F 66% 29.66 in 10.0 mi West 24.2 mph 29.9 mph N/A   Mostly Cloudy
11:56 PM 46.9 °F - 33.1 °F 59% 29.67 in 10.0 mi West 27.6 mph 33.4 mph N/A   Mostly Cloudy