San Francisco, CA

11:47 AM PST on January 23, 2017 (GMT -0800)
San Francisco International

Weather History for KSFO - September, 2013

Change the Weather History Date:

Friday, September 13, 2013

  Actual Average Record
Temperature  
Mean Temperature 62 °F 65 °F  
Max Temperature 66 °F 74 °F 101 °F (1971)
Min Temperature 57 °F 56 °F 47 °F (1947)
Degree Days  
Heating Degree Days 3 2  
Month to date heating degree days 3 26  
Since 1 July heating degree days 118 139  
Cooling Degree Days 0 2  
Month to date cooling degree days 30 26  
Year to date cooling degree days 130 123  
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 80    
Maximum Humidity 93    
Minimum Humidity 67    
Precipitation  
Precipitation 0.00 in 0.00 in 0.27 in (2009)
Month to date precipitation 0.00 0.04  
Year to date precipitation 1.89 13.16  
Since 1 July precipitation T  
Sea Level Pressure  
Sea Level Pressure 29.87 in    
Wind  
Wind Speed 15 mph (West)    
Max Wind Speed 30 mph    
Max Gust Speed 37 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport or City:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Sep. 13, 2013 Rise Set
Actual Time 6:50 AM PDT 7:19 PM PDT
Civil Twilight 6:23 AM PDT 7:46 PM PDT
Nautical Twilight 5:52 AM PDT 8:16 PM PDT
Astronomical Twilight 5:21 AM PDT 8:48 PM PDT
Moon 3:09 PM PDT (9/13) 12:29 AM PDT (9/13)
Length of Visible Light 13h 22m
Length of Day
12h 29m
Waxing Gibbous, 62% of the Moon is Illuminated
Sep 13
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 60.1 °F 55.0 °F 83% 29.92 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
1:56 AM 59.0 °F 54.0 °F 83% 29.92 in 10.0 mi West 8.1 mph - N/A   Mostly Cloudy
2:56 AM 59.0 °F 55.0 °F 87% 29.92 in 10.0 mi West 11.5 mph - N/A   Mostly Cloudy
3:56 AM 57.9 °F 55.0 °F 90% 29.91 in 7.0 mi West 13.8 mph - N/A   Mostly Cloudy
4:56 AM 59.0 °F 55.0 °F 87% 29.91 in 10.0 mi West 12.7 mph - N/A   Overcast
5:56 AM 57.9 °F 55.0 °F 90% 29.91 in 9.0 mi West 6.9 mph - N/A   Overcast
6:56 AM 57.9 °F 54.0 °F 87% 29.91 in 9.0 mi West 9.2 mph - N/A   Overcast
7:30 AM 57.2 °F 53.6 °F 88% 29.92 in 9.0 mi West 13.8 mph - N/A   Overcast
7:56 AM 57.0 °F 54.0 °F 89% 29.92 in 9.0 mi West 12.7 mph - N/A   Overcast
8:56 AM 59.0 °F 54.0 °F 83% 29.91 in 10.0 mi West 12.7 mph - N/A   Mostly Cloudy
9:56 AM 60.1 °F 54.0 °F 80% 29.92 in 10.0 mi West 16.1 mph - N/A   Overcast
10:56 AM 60.1 °F 54.0 °F 80% 29.91 in 10.0 mi WNW 15.0 mph 19.6 mph N/A   Mostly Cloudy
11:30 AM 62.6 °F 53.6 °F 72% 29.90 in 10.0 mi WNW 16.1 mph - N/A   Scattered Clouds
11:56 AM 63.0 °F 54.0 °F 72% 29.89 in 10.0 mi WNW 18.4 mph - N/A   Scattered Clouds
12:56 PM 64.9 °F 54.0 °F 68% 29.87 in 10.0 mi WNW 20.7 mph - N/A   Partly Cloudy
1:56 PM 64.0 °F 54.0 °F 70% 29.86 in 10.0 mi West 23.0 mph - N/A   Partly Cloudy
2:56 PM 64.9 °F 54.0 °F 68% 29.84 in 10.0 mi West 21.9 mph 29.9 mph N/A   Scattered Clouds
3:56 PM 63.0 °F 54.0 °F 72% 29.83 in 10.0 mi West 24.2 mph - N/A   Mostly Cloudy
4:56 PM 62.1 °F 54.0 °F 75% 29.82 in 10.0 mi West 26.5 mph 36.8 mph N/A   Mostly Cloudy
5:56 PM 61.0 °F 54.0 °F 78% 29.81 in 10.0 mi West 18.4 mph 26.5 mph N/A   Mostly Cloudy
6:56 PM 60.1 °F 54.0 °F 80% 29.80 in 10.0 mi West 12.7 mph 18.4 mph N/A   Mostly Cloudy
7:56 PM 59.0 °F 54.0 °F 83% 29.80 in 10.0 mi West 11.5 mph - N/A   Mostly Cloudy
8:56 PM 59.0 °F 54.0 °F 83% 29.82 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
9:56 PM 59.0 °F 54.0 °F 83% 29.82 in 10.0 mi West 15.0 mph - N/A   Mostly Cloudy
10:27 PM 57.2 °F 53.6 °F 88% 29.82 in 10.0 mi West 13.8 mph - N/A   Overcast
10:56 PM 57.9 °F 54.0 °F 87% 29.83 in 10.0 mi West 13.8 mph - N/A   Overcast
11:56 PM 57.9 °F 54.0 °F 87% 29.82 in 10.0 mi West 11.5 mph - N/A   Overcast