San Francisco, CA

8:55 AM PDT on May 23, 2017 (GMT -0700)
San Francisco International

Weather History for KSFO - August, 2013

Change the Weather History Date:

Tuesday, August 13, 2013

  Actual Average Record
Temperature  
Mean Temperature 66 °F 64 °F  
Max Temperature 77 °F 73 °F 89 °F (1991)
Min Temperature 55 °F 56 °F 47 °F (1946)
Degree Days  
Heating Degree Days 0 1  
Month to date heating degree days 30 24  
Since 1 June heating degree days 196 194  
Since 1 July heating degree days 108 89  
Cooling Degree Days 1 1  
Month to date cooling degree days 1 13  
Year to date cooling degree days 73 77  
Since 1 June cooling degree days 46 58  
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 52 °F    
Average Humidity 66    
Maximum Humidity 86    
Minimum Humidity 46    
Precipitation  
Precipitation 0.00 in 0.00 in 0.18 in (1991)
Month to date precipitation T 0.01  
Year to date precipitation 1.89 13.09  
Since 1 July precipitation T  
Sea Level Pressure  
Sea Level Pressure 29.97 in    
Wind  
Wind Speed 11 mph (WNW)    
Max Wind Speed 26 mph    
Max Gust Speed 30 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

Aug. 13, 2013 Rise Set
Actual Time 6:23 AM PDT 8:04 PM PDT
Civil Twilight 5:55 AM PDT 8:31 PM PDT
Nautical Twilight 5:21 AM PDT 9:05 PM PDT
Astronomical Twilight 4:46 AM PDT 9:41 PM PDT
Moon 1:15 PM PDT (8/13) 11:52 PM PDT (8/13)
Length of Visible Light 14h 36m
Length of Day
13h 40m
Waxing Crescent, 43% of the Moon is Illuminated
Aug 13
Waxing Crescent
Aug 14
First Quarter
Aug 20
Full
Aug 28
Last Quarter
Sep 5
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 57.0 °F 52.0 °F 83% 29.99 in 10.0 mi WNW 6.9 mph - N/A   Partly Cloudy
1:56 AM 57.0 °F 52.0 °F 83% 29.99 in 10.0 mi Calm Calm - N/A   Scattered Clouds
2:56 AM 57.0 °F 51.1 °F 81% 29.99 in 10.0 mi West 5.8 mph - N/A   Partly Cloudy
3:56 AM 57.0 °F 52.0 °F 83% 29.98 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
4:56 AM 55.0 °F 50.0 °F 83% 29.97 in 10.0 mi SW 3.5 mph - N/A   Partly Cloudy
5:56 AM 55.0 °F 50.0 °F 83% 29.98 in 10.0 mi West 5.8 mph - N/A   Scattered Clouds
6:56 AM 55.9 °F 52.0 °F 87% 29.98 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:56 AM 57.0 °F 53.1 °F 87% 29.99 in 10.0 mi South 4.6 mph - N/A   Overcast
8:56 AM 59.0 °F 54.0 °F 83% 30.00 in 8.0 mi ESE 5.8 mph - N/A   Mostly Cloudy
9:56 AM 62.1 °F 55.0 °F 78% 29.99 in 8.0 mi NE 3.5 mph - N/A   Partly Cloudy
10:56 AM 64.0 °F 55.0 °F 73% 29.99 in 10.0 mi ENE 4.6 mph - N/A   Partly Cloudy
11:56 AM 68.0 °F 57.0 °F 68% 29.98 in 10.0 mi NNE 6.9 mph - N/A   Partly Cloudy
12:56 PM 69.1 °F 57.9 °F 68% 29.96 in 10.0 mi NNE 5.8 mph - N/A   Partly Cloudy
1:56 PM 75.0 °F 54.0 °F 48% 29.95 in 10.0 mi WNW 16.1 mph - N/A   Partly Cloudy
2:56 PM 72.0 °F 53.1 °F 51% 29.94 in 10.0 mi WNW 21.9 mph - N/A   Partly Cloudy
3:56 PM 69.1 °F 53.1 °F 57% 29.94 in 10.0 mi WNW 24.2 mph 28.8 mph N/A   Partly Cloudy
4:56 PM 66.0 °F 52.0 °F 60% 29.94 in 10.0 mi WNW 25.3 mph - N/A   Partly Cloudy
5:56 PM 69.1 °F 50.0 °F 51% 29.94 in 10.0 mi West 20.7 mph - N/A   Partly Cloudy
6:56 PM 63.0 °F 52.0 °F 67% 29.94 in 10.0 mi West 21.9 mph - N/A   Partly Cloudy
7:56 PM 62.1 °F 51.1 °F 67% 29.94 in 10.0 mi West 15.0 mph - N/A   Partly Cloudy
8:56 PM 61.0 °F 50.0 °F 67% 29.95 in 10.0 mi WNW 15.0 mph - N/A   Clear
9:56 PM 61.0 °F 50.0 °F 67% 29.96 in 10.0 mi West 13.8 mph - N/A   Clear
10:56 PM 60.1 °F 50.0 °F 69% 29.97 in 10.0 mi WNW 12.7 mph - N/A   Clear
11:56 PM 60.1 °F 50.0 °F 69% 29.97 in 10.0 mi WNW 15.0 mph - N/A   Clear