San Francisco, CA

2:35 AM PST on December 05, 2016 (GMT -0800)
San Francisco International

Weather History for KSFO - September, 2013

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Sunday, September 8, 2013

  Actual Average Record
Temperature  
Mean Temperature 65 °F 65 °F  
Max Temperature 74 °F 74 °F 100 °F (1984)
Min Temperature 56 °F 56 °F 48 °F (1946)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 0 16  
Since 1 July heating degree days 115 129  
Cooling Degree Days 0 2  
Month to date cooling degree days 25 16  
Year to date cooling degree days 125 113  
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 70    
Maximum Humidity 86    
Minimum Humidity 53    
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in (2016)
Month to date precipitation 0.00 0.02  
Year to date precipitation 1.89 13.14  
Since 1 July precipitation T  
Sea Level Pressure  
Sea Level Pressure 29.83 in    
Wind  
Wind Speed 11 mph (WNW)    
Max Wind Speed 26 mph    
Max Gust Speed 31 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. 08, 2013 Rise Set
Actual Time 6:45 AM PDT 7:27 PM PDT
Civil Twilight 6:19 AM PDT 7:53 PM PDT
Nautical Twilight 5:48 AM PDT 8:25 PM PDT
Astronomical Twilight 5:15 AM PDT 8:57 PM PDT
Moon 10:04 AM PDT (9/8) 9:11 PM PDT (9/8)
Length of Visible Light 13h 34m
Length of Day
12h 41m
Waxing Crescent, 12% of the Moon is Illuminated
Sep 8
Waxing Crescent
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 57.9 °F 54.0 °F 87% 29.86 in 10.0 mi WNW 10.4 mph - N/A   Partly Cloudy
1:56 AM 57.9 °F 54.0 °F 87% 29.87 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
2:56 AM 57.0 °F 54.0 °F 89% 29.87 in 10.0 mi WNW 10.4 mph - N/A   Partly Cloudy
3:56 AM 57.0 °F 53.1 °F 87% 29.87 in 10.0 mi West 9.2 mph - N/A   Clear
4:56 AM 57.0 °F 53.1 °F 87% 29.86 in 10.0 mi WNW 8.1 mph - N/A   Clear
5:56 AM 57.0 °F 53.1 °F 87% 29.87 in 10.0 mi WNW 5.8 mph - N/A   Clear
6:36 AM 55.4 °F 53.6 °F 94% 29.87 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
6:56 AM 57.0 °F 53.1 °F 87% 29.87 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
7:56 AM 57.9 °F 54.0 °F 87% 29.88 in 10.0 mi WNW 6.9 mph - N/A   Partly Cloudy
8:56 AM 61.0 °F 55.0 °F 81% 29.88 in 10.0 mi WNW 6.9 mph - N/A   Partly Cloudy
9:56 AM 64.9 °F 55.9 °F 73% 29.88 in 10.0 mi North 3.5 mph - N/A   Partly Cloudy
10:56 AM 66.9 °F 57.0 °F 70% 29.87 in 10.0 mi NE 4.6 mph - N/A   Partly Cloudy
11:56 AM 69.1 °F 57.9 °F 68% 29.86 in 10.0 mi NNE 5.8 mph - N/A   Partly Cloudy
12:56 PM 73.9 °F 55.9 °F 53% 29.84 in 10.0 mi NW 11.5 mph - N/A   Partly Cloudy
1:56 PM 73.0 °F 55.9 °F 55% 29.83 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
2:56 PM 71.1 °F 55.9 °F 59% 29.81 in 10.0 mi WNW 20.7 mph - N/A   Partly Cloudy
3:56 PM 71.6 °F 55.4 °F 57% 29.78 in 10.0 mi WNW 17.3 mph - N/A   Scattered Clouds
4:56 PM 69.8 °F 55.4 °F 60% 29.77 in 10.0 mi WNW 18.4 mph - N/A   Scattered Clouds
5:56 PM 62.6 °F 53.6 °F 72% 29.77 in 10.0 mi WNW 23.0 mph - N/A   Scattered Clouds
6:56 PM 62.6 °F 53.6 °F 72% 29.76 in 10.0 mi WNW 18.4 mph - N/A   Scattered Clouds
7:56 PM 59.0 °F 53.1 °F 81% 29.77 in 10.0 mi WNW 16.1 mph - N/A   Scattered Clouds
8:56 PM 59.0 °F 53.1 °F 81% 29.79 in 10.0 mi West 15.0 mph - N/A   Scattered Clouds
9:56 PM 57.2 °F 53.6 °F 88% 29.80 in 10.0 mi WNW 10.4 mph - N/A   Scattered Clouds
10:56 PM 57.2 °F 51.8 °F 82% 29.81 in 10.0 mi West 11.5 mph - N/A   Scattered Clouds
11:56 PM 57.2 °F 53.6 °F 88% 29.81 in 10.0 mi WNW 10.4 mph - N/A   Scattered Clouds