San Francisco, CA

6:25 AM PDT on March 25, 2017 (GMT -0700)
San Francisco International

Weather History for KSFO - September, 2013

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Sunday, September 22, 2013

  Actual Average Record
Temperature  
Mean Temperature 63 °F 64 °F  
Max Temperature 70 °F 74 °F 91 °F (1946)
Min Temperature 55 °F 56 °F 48 °F (1981)
Degree Days  
Heating Degree Days 2 2  
Month to date heating degree days 12 44  
Since 1 July heating degree days 127 157  
Cooling Degree Days 0 1  
Month to date cooling degree days 34 37  
Year to date cooling degree days 134 134  
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 70    
Maximum Humidity 93    
Minimum Humidity 47    
Precipitation  
Precipitation 0.00 in 0.01 in 0.20 in (1990)
Month to date precipitation 0.23 0.10  
Year to date precipitation 2.12 13.22  
Since 1 July precipitation 0.23  
Sea Level Pressure  
Sea Level Pressure 29.97 in    
Wind  
Wind Speed 10 mph (WNW)    
Max Wind Speed 29 mph    
Max Gust Speed 35 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. 22, 2013 Rise Set
Actual Time 6:57 AM PDT 7:05 PM PDT
Civil Twilight 6:31 AM PDT 7:31 PM PDT
Nautical Twilight 6:00 AM PDT 8:02 PM PDT
Astronomical Twilight 5:29 AM PDT 8:33 PM PDT
Moon 9:04 PM PDT (9/22) 10:18 AM PDT (9/22)
Length of Visible Light 13h 00m
Length of Day
12h 08m
Waning Gibbous, 88% of the Moon is Illuminated
Sep 22
Waning Gibbous
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 59.0 °F 54.0 °F 83% 29.92 in 10.0 mi Calm Calm - N/A   Clear
1:56 AM 57.9 °F 53.1 °F 84% 29.92 in 10.0 mi NW 3.5 mph - N/A   Partly Cloudy
2:56 AM 57.0 °F 53.1 °F 87% 29.92 in 10.0 mi West 5.8 mph - N/A   Partly Cloudy
3:56 AM 57.0 °F 53.1 °F 87% 29.92 in 10.0 mi West 5.8 mph - N/A   Partly Cloudy
4:56 AM 55.9 °F 52.0 °F 87% 29.93 in 10.0 mi WNW 4.6 mph - N/A   Clear
5:56 AM 55.9 °F 53.1 °F 90% 29.93 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
6:38 AM 55.4 °F 51.8 °F 88% 29.94 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
6:56 AM 55.0 °F 52.0 °F 89% 29.95 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
7:56 AM 55.9 °F 53.1 °F 90% 29.96 in 10.0 mi West 5.8 mph - N/A   Partly Cloudy
8:56 AM 60.1 °F 53.1 °F 78% 29.97 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:56 AM 62.1 °F 52.0 °F 70% 29.99 in 10.0 mi NNE 3.5 mph - N/A   Partly Cloudy
10:56 AM 64.0 °F 54.0 °F 70% 30.00 in 10.0 mi NE 5.8 mph - N/A   Partly Cloudy
11:56 AM 66.0 °F 53.1 °F 63% 29.99 in 10.0 mi NE 4.6 mph - N/A   Partly Cloudy
12:56 PM 66.9 °F 53.1 °F 61% 29.99 in 10.0 mi NE 4.6 mph - N/A   Partly Cloudy
1:27 PM 69.8 °F 50.0 °F 49% 30.00 in 10.0 mi West 15.0 mph - N/A   Partly Cloudy
1:56 PM 68.0 °F 50.0 °F 52% 29.99 in 10.0 mi West 11.5 mph - N/A   Scattered Clouds
2:56 PM 69.1 °F 48.9 °F 49% 29.98 in 10.0 mi West 19.6 mph 24.2 mph N/A   Scattered Clouds
3:56 PM 69.1 °F 51.1 °F 53% 29.97 in 10.0 mi West 21.9 mph 27.6 mph N/A   Scattered Clouds
4:56 PM 66.9 °F 52.0 °F 59% 29.97 in 10.0 mi West 26.5 mph 34.5 mph N/A   Scattered Clouds
5:56 PM 66.0 °F 53.1 °F 63% 29.98 in 10.0 mi West 20.7 mph 29.9 mph N/A   Partly Cloudy
6:56 PM 63.0 °F 54.0 °F 72% 29.99 in 10.0 mi WNW 12.7 mph - N/A   Scattered Clouds
7:56 PM 62.1 °F 55.0 °F 78% 29.99 in 10.0 mi West 16.1 mph - N/A   Partly Cloudy
8:56 PM 62.1 °F 53.1 °F 72% 30.00 in 10.0 mi WNW 9.2 mph - N/A   Clear
9:56 PM 61.0 °F 53.1 °F 75% 30.01 in 10.0 mi West 13.8 mph - N/A   Clear
10:56 PM 60.1 °F 53.1 °F 78% 30.01 in 10.0 mi West 15.0 mph - N/A   Clear
11:56 PM 60.1 °F 54.0 °F 80% 30.02 in 10.0 mi West 13.8 mph - N/A   Clear