San Francisco, CA

8:55 AM PDT on May 23, 2017 (GMT -0700)
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Weather History for KSFO - September, 2013

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Saturday, September 14, 2013

  Actual Average Record
Temperature  
Mean Temperature 62 °F 65 °F  
Max Temperature 66 °F 74 °F 103 °F (1971)
Min Temperature 57 °F 56 °F 46 °F (1947)
Degree Days  
Heating Degree Days 3 2  
Month to date heating degree days 6 28  
Since 1 July heating degree days 121 141  
Cooling Degree Days 0 2  
Month to date cooling degree days 30 28  
Year to date cooling degree days 130 125  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 77    
Maximum Humidity 87    
Minimum Humidity 67    
Precipitation  
Precipitation 0.00 in 0.01 in 0.00 in (2017)
Month to date precipitation 0.00 0.05  
Year to date precipitation 1.89 13.17  
Since 1 July precipitation T  
Sea Level Pressure  
Sea Level Pressure 29.81 in    
Wind  
Wind Speed 16 mph (West)    
Max Wind Speed 25 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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Daily Weather History Graph

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Date:

Astronomy

Sep. 14, 2013 Rise Set
Actual Time 6:50 AM PDT 7:18 PM PDT
Civil Twilight 6:24 AM PDT 7:44 PM PDT
Nautical Twilight 5:53 AM PDT 8:15 PM PDT
Astronomical Twilight 5:22 AM PDT 8:46 PM PDT
Moon 3:59 PM PDT (9/14) 1:33 AM PDT (9/14)
Length of Visible Light 13h 19m
Length of Day
12h 27m
Waxing Gibbous, 73% of the Moon is Illuminated
Sep 14
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 57.0 °F 54.0 °F 89% 29.82 in 10.0 mi West 16.1 mph - N/A   Overcast
1:56 AM 57.9 °F 54.0 °F 87% 29.82 in 10.0 mi WSW 13.8 mph - N/A   Overcast
2:56 AM 57.0 °F 54.0 °F 89% 29.81 in 10.0 mi West 18.4 mph - N/A   Overcast
3:56 AM 57.0 °F 54.0 °F 89% 29.81 in 10.0 mi West 16.1 mph - N/A   Overcast
4:56 AM 57.0 °F 54.0 °F 89% 29.81 in 9.0 mi West 13.8 mph - N/A   Overcast
5:56 AM 57.0 °F 54.0 °F 89% 29.81 in 10.0 mi West 10.4 mph 17.3 mph N/A   Overcast
6:56 AM 57.0 °F 54.0 °F 89% 29.83 in 10.0 mi West 11.5 mph - N/A   Overcast
7:56 AM 57.9 °F 54.0 °F 87% 29.83 in 10.0 mi West 12.7 mph - N/A   Overcast
8:56 AM 57.9 °F 54.0 °F 87% 29.84 in 10.0 mi West 13.8 mph - N/A   Overcast
9:56 AM 59.0 °F 55.0 °F 87% 29.85 in 10.0 mi West 11.5 mph - N/A   Overcast
10:56 AM 59.0 °F 55.0 °F 87% 29.86 in 10.0 mi West 15.0 mph - N/A   Overcast
11:56 AM 60.1 °F 55.0 °F 83% 29.85 in 10.0 mi West 13.8 mph 24.2 mph N/A   Overcast
12:56 PM 62.1 °F 55.0 °F 78% 29.83 in 10.0 mi West 18.4 mph 25.3 mph N/A   Overcast
1:56 PM 63.0 °F 55.0 °F 75% 29.82 in 10.0 mi West 17.3 mph 24.2 mph N/A   Overcast
2:56 PM 64.0 °F 55.0 °F 73% 29.82 in 10.0 mi WSW 24.2 mph 31.1 mph N/A   Overcast
3:56 PM 64.0 °F 54.0 °F 70% 29.79 in 10.0 mi WSW 23.0 mph 26.5 mph N/A   Mostly Cloudy
4:10 PM 64.4 °F 53.6 °F 68% 29.79 in 10.0 mi West 21.9 mph 28.8 mph N/A   Scattered Clouds
4:21 PM 64.4 °F 53.6 °F 68% 29.78 in 10.0 mi West 19.6 mph 31.1 mph N/A   Partly Cloudy
4:56 PM 64.0 °F 54.0 °F 70% 29.78 in 10.0 mi West 19.6 mph 28.8 mph N/A   Partly Cloudy
5:56 PM 63.0 °F 54.0 °F 72% 29.77 in 10.0 mi West 16.1 mph 25.3 mph N/A   Scattered Clouds
6:56 PM 61.0 °F 54.0 °F 78% 29.78 in 10.0 mi West 16.1 mph - N/A   Scattered Clouds
7:56 PM 60.1 °F 53.1 °F 78% 29.78 in 10.0 mi West 17.3 mph 23.0 mph N/A   Scattered Clouds
8:42 PM 60.8 °F 53.6 °F 77% 29.79 in 10.0 mi West 15.0 mph 24.2 mph N/A   Mostly Cloudy
8:56 PM 60.1 °F 53.1 °F 78% 29.80 in 10.0 mi West 15.0 mph 23.0 mph N/A   Mostly Cloudy
9:56 PM 60.1 °F 53.1 °F 78% 29.81 in 10.0 mi West 15.0 mph - N/A   Overcast
10:56 PM 60.1 °F 53.1 °F 78% 29.81 in 10.0 mi West 12.7 mph 21.9 mph N/A   Overcast
11:56 PM 59.0 °F 53.1 °F 81% 29.82 in 10.0 mi West 12.7 mph 23.0 mph N/A   Overcast