San Francisco, CA

7:08 AM PDT on May 24, 2017 (GMT -0700)
San Francisco International

Weather History for KSFO - August, 2013

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Sunday, August 4, 2013

  Actual Average Record
Temperature  
Mean Temperature 61 °F 64 °F  
Max Temperature 67 °F 72 °F 87 °F (1998)
Min Temperature 55 °F 56 °F 50 °F (1966)
Degree Days  
Heating Degree Days 4 2  
Month to date heating degree days 14 8  
Since 1 June heating degree days 180 178  
Since 1 July heating degree days 92 73  
Cooling Degree Days 0 1  
Month to date cooling degree days 0 4  
Year to date cooling degree days 72 68  
Since 1 June cooling degree days 45 49  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 51 °F    
Average Humidity 71    
Maximum Humidity 86    
Minimum Humidity 56    
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in (2017)
Month to date precipitation 0.00 0.00  
Year to date precipitation 1.89 13.08  
Since 1 July precipitation T  
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 13 mph (West)    
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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Date:

Astronomy

Aug. 04, 2013 Rise Set
Actual Time 6:16 AM PDT 8:14 PM PDT
Civil Twilight 5:47 AM PDT 8:43 PM PDT
Nautical Twilight 5:12 AM PDT 9:17 PM PDT
Astronomical Twilight 4:34 AM PDT 9:55 PM PDT
Moon 4:22 AM PDT (8/4) 6:41 PM PDT (8/4)
Length of Visible Light 14h 55m
Length of Day
13h 58m
Waning Crescent, 4% of the Moon is Illuminated
Aug 4
Waning Crescent
Aug 6
New
Aug 14
First Quarter
Aug 20
Full
Aug 28
Last 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 55.0 °F 50.0 °F 83% 29.99 in 10.0 mi West 8.1 mph - N/A   Mostly Cloudy
1:56 AM 55.0 °F 51.1 °F 86% 29.99 in 10.0 mi Variable 5.8 mph - N/A   Overcast
2:56 AM 55.0 °F 51.1 °F 86% 29.99 in 10.0 mi WSW 6.9 mph - N/A   Overcast
3:56 AM 55.0 °F 50.0 °F 83% 29.99 in 10.0 mi West 4.6 mph - N/A   Overcast
4:27 AM 55.4 °F 50.0 °F 82% 30.00 in 10.0 mi West 5.8 mph - N/A   Overcast
4:56 AM 55.9 °F 50.0 °F 80% 30.00 in 10.0 mi WSW 8.1 mph - N/A   Overcast
5:56 AM 55.0 °F 50.0 °F 83% 30.01 in 10.0 mi WSW 11.5 mph - N/A   Overcast
6:56 AM 55.9 °F 50.0 °F 80% 30.01 in 10.0 mi West 10.4 mph - N/A   Overcast
7:56 AM 55.9 °F 50.0 °F 80% 30.01 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
8:56 AM 57.9 °F 50.0 °F 75% 30.02 in 10.0 mi West 10.4 mph - N/A   Overcast
9:56 AM 60.1 °F 51.1 °F 72% 30.02 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
10:43 AM 60.8 °F 51.8 °F 72% 30.02 in 10.0 mi West 11.5 mph - N/A   Scattered Clouds
10:56 AM 61.0 °F 51.1 °F 70% 30.02 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds
11:56 AM 63.0 °F 51.1 °F 65% 30.01 in 10.0 mi WNW 16.1 mph - N/A   Partly Cloudy
12:56 PM 64.9 °F 51.1 °F 61% 30.00 in 10.0 mi WNW 15.0 mph - N/A   Partly Cloudy
1:56 PM 64.9 °F 50.0 °F 58% 30.00 in 10.0 mi NW 17.3 mph - N/A   Partly Cloudy
2:56 PM 66.0 °F 50.0 °F 56% 29.99 in 10.0 mi WNW 18.4 mph - N/A   Partly Cloudy
3:56 PM 64.9 °F 50.0 °F 58% 29.99 in 10.0 mi WNW 20.7 mph - N/A   Partly Cloudy
4:56 PM 63.0 °F 50.0 °F 63% 29.98 in 10.0 mi WNW 23.0 mph 29.9 mph N/A   Partly Cloudy
5:56 PM 61.0 °F 50.0 °F 67% 29.99 in 10.0 mi West 20.7 mph 26.5 mph N/A   Scattered Clouds
6:32 PM 59.0 °F 50.0 °F 72% 29.99 in 10.0 mi West 21.9 mph - N/A   Mostly Cloudy
6:56 PM 59.0 °F 51.1 °F 75% 30.00 in 10.0 mi West 17.3 mph - N/A   Mostly Cloudy
7:56 PM 57.9 °F 52.0 °F 81% 30.00 in 10.0 mi West 18.4 mph - N/A   Mostly Cloudy
8:56 PM 57.9 °F 52.0 °F 81% 30.01 in 10.0 mi West 16.1 mph - N/A   Overcast
9:56 PM 57.9 °F 52.0 °F 81% 30.03 in 10.0 mi WSW 10.4 mph - N/A   Overcast
10:56 PM 57.0 °F 52.0 °F 83% 30.03 in 10.0 mi SW 11.5 mph - N/A   Overcast
11:56 PM 57.0 °F 52.0 °F 83% 30.02 in 10.0 mi WSW 8.1 mph - N/A   Overcast