San Francisco, CA

10:03 AM PDT on June 23, 2017 (GMT -0700)
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Weather History for KSFO - September, 2013

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Monday, September 16, 2013

  Actual Average Record
Temperature  
Mean Temperature 65 °F 65 °F  
Max Temperature 71 °F 74 °F 90 °F (1968)
Min Temperature 59 °F 56 °F 49 °F (2006)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 6 32  
Since 1 July heating degree days 121 145  
Cooling Degree Days 0 1  
Month to date cooling degree days 31 31  
Year to date cooling degree days 131 128  
Growing Degree Days 15 (Base 50)    
Moisture  
Dew Point 55 °F    
Average Humidity 74    
Maximum Humidity 90    
Minimum Humidity 57    
Precipitation  
Precipitation 0.00 in 0.01 in 0.88 in (1989)
Month to date precipitation 0.00 0.06  
Year to date precipitation 1.89 13.18  
Since 1 July precipitation T  
Sea Level Pressure  
Sea Level Pressure 29.87 in    
Wind  
Wind Speed 16 mph (West)    
Max Wind Speed 31 mph    
Max Gust Speed 39 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. 16, 2013 Rise Set
Actual Time 6:52 AM PDT 7:15 PM PDT
Civil Twilight 6:26 AM PDT 7:41 PM PDT
Nautical Twilight 5:55 AM PDT 8:12 PM PDT
Astronomical Twilight 5:24 AM PDT 8:43 PM PDT
Moon 5:25 PM PDT (9/16) 3:47 AM PDT (9/16)
Length of Visible Light 13h 15m
Length of Day
12h 22m
Waxing Gibbous, 91% of the Moon is Illuminated
Sep 16
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 61.0 °F 57.9 °F 90% 29.88 in 6.0 mi West 8.1 mph - N/A   Overcast
1:56 AM 61.0 °F 57.0 °F 87% 29.88 in 9.0 mi West 11.5 mph - N/A   Overcast
2:56 AM 60.1 °F 57.0 °F 90% 29.88 in 9.0 mi West 11.5 mph - N/A   Overcast
3:56 AM 60.1 °F 57.0 °F 90% 29.87 in 9.0 mi West 15.0 mph - N/A   Overcast
4:56 AM 60.1 °F 57.0 °F 90% 29.87 in 9.0 mi West 8.1 mph - N/A   Mostly Cloudy
5:56 AM 59.0 °F 55.9 °F 90% 29.88 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
6:56 AM 60.1 °F 54.0 °F 80% 29.88 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
7:56 AM 62.1 °F 55.0 °F 78% 29.89 in 10.0 mi WSW 8.1 mph - N/A   Partly Cloudy
8:56 AM 63.0 °F 55.0 °F 75% 29.90 in 10.0 mi West 9.2 mph - N/A   Scattered Clouds
9:56 AM 64.0 °F 55.9 °F 75% 29.91 in 10.0 mi WNW 6.9 mph - N/A   Partly Cloudy
10:56 AM 68.0 °F 57.0 °F 68% 29.90 in 10.0 mi NNW 10.4 mph - N/A   Partly Cloudy
11:56 AM 69.1 °F 55.9 °F 63% 29.89 in 10.0 mi WNW 10.4 mph - N/A   Partly Cloudy
12:56 PM 70.0 °F 54.0 °F 57% 29.89 in 10.0 mi West 16.1 mph - N/A   Partly Cloudy
1:56 PM 69.1 °F 54.0 °F 58% 29.87 in 10.0 mi WNW 18.4 mph - N/A   Partly Cloudy
2:56 PM 68.0 °F 53.1 °F 59% 29.86 in 10.0 mi West 24.2 mph 29.9 mph N/A   Clear
3:56 PM 69.1 °F 53.1 °F 57% 29.84 in 10.0 mi West 23.0 mph 31.1 mph N/A   Partly Cloudy
4:56 PM 69.1 °F 53.1 °F 57% 29.83 in 10.0 mi West 23.0 mph 33.4 mph N/A   Partly Cloudy
5:56 PM 66.9 °F 54.0 °F 63% 29.82 in 10.0 mi West 18.4 mph 31.1 mph N/A   Partly Cloudy
6:56 PM 63.0 °F 54.0 °F 72% 29.81 in 10.0 mi West 21.9 mph 32.2 mph N/A   Partly Cloudy
7:56 PM 62.1 °F 54.0 °F 75% 29.82 in 10.0 mi West 21.9 mph 28.8 mph N/A   Partly Cloudy
8:56 PM 61.0 °F 54.0 °F 78% 29.83 in 10.0 mi West 18.4 mph 26.5 mph N/A   Partly Cloudy
9:56 PM 61.0 °F 53.1 °F 75% 29.85 in 10.0 mi West 13.8 mph 18.4 mph N/A   Scattered Clouds
10:30 PM 60.8 °F 55.4 °F 82% 29.86 in 10.0 mi West 19.6 mph 29.9 mph N/A   Mostly Cloudy
10:56 PM 61.0 °F 55.0 °F 81% 29.86 in 10.0 mi West 20.7 mph 31.1 mph N/A   Mostly Cloudy
11:56 PM 61.0 °F 55.9 °F 83% 29.86 in 10.0 mi West 28.8 mph 33.4 mph N/A   Overcast