San Francisco, CA

4:38 AM PDT on July 28, 2017 (GMT -0700)
San Francisco International

Weather History for KSFO - August, 2013

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Tuesday, August 27, 2013

  Actual Average Record
Temperature  
Mean Temperature 64 °F 65 °F  
Max Temperature 72 °F 73 °F 94 °F (1993)
Min Temperature 56 °F 56 °F 46 °F (1952)
Degree Days  
Heating Degree Days 1 2  
Month to date heating degree days 36 39  
Since 1 June heating degree days 202 209  
Since 1 July heating degree days 114 104  
Cooling Degree Days 0 1  
Month to date cooling degree days 19 27  
Year to date cooling degree days 91 91  
Since 1 June cooling degree days 64 72  
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 55 °F    
Average Humidity 74    
Maximum Humidity 86    
Minimum Humidity 61    
Precipitation  
Precipitation 0.00 in 0.00 in 0.08 in (1949)
Month to date precipitation T 0.03  
Year to date precipitation 1.89 13.11  
Since 1 July precipitation T  
Sea Level Pressure  
Sea Level Pressure 29.88 in    
Wind  
Wind Speed 14 mph (WNW)    
Max Wind Speed 29 mph    
Max Gust Speed 37 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Aug. 27, 2013 Rise Set
Actual Time 6:35 AM PDT 7:45 PM PDT
Civil Twilight 6:08 AM PDT 8:12 PM PDT
Nautical Twilight 5:36 AM PDT 8:44 PM PDT
Astronomical Twilight 5:02 AM PDT 9:17 PM PDT
Moon 11:51 PM PDT (8/27) 1:30 PM PDT (8/27)
Length of Visible Light 14h 03m
Length of Day
13h 09m
Waning Gibbous, 56% of the Moon is Illuminated
Aug 27
Waning Gibbous
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter
Sep 19
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% 29.93 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
1:56 AM 59.0 °F 54.0 °F 83% 29.91 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
2:56 AM 57.9 °F 54.0 °F 87% 29.90 in 10.0 mi West 3.5 mph - N/A   Partly Cloudy
3:56 AM 59.0 °F 53.1 °F 81% 29.89 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:56 AM 57.0 °F 51.1 °F 81% 29.89 in 10.0 mi West 3.5 mph - N/A   Partly Cloudy
5:56 AM 57.9 °F 54.0 °F 87% 29.89 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
6:56 AM 57.0 °F 54.0 °F 89% 29.90 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
7:56 AM 57.9 °F 54.0 °F 87% 29.90 in 10.0 mi WNW 10.4 mph - N/A   Partly Cloudy
8:56 AM 60.1 °F 54.0 °F 80% 29.90 in 10.0 mi WNW 11.5 mph - N/A   Partly Cloudy
9:56 AM 62.1 °F 54.0 °F 75% 29.90 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
10:56 AM 66.0 °F 54.0 °F 65% 29.90 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
11:56 AM 66.0 °F 54.0 °F 65% 29.90 in 10.0 mi WNW 19.6 mph - N/A   Partly Cloudy
12:56 PM 66.9 °F 55.0 °F 66% 29.89 in 10.0 mi WNW 19.6 mph - N/A   Partly Cloudy
1:56 PM 68.0 °F 55.9 °F 65% 29.88 in 10.0 mi WNW 23.0 mph - N/A   Partly Cloudy
2:56 PM 70.0 °F 55.9 °F 61% 29.87 in 10.0 mi West 20.7 mph 28.8 mph N/A   Partly Cloudy
3:56 PM 70.0 °F 55.9 °F 61% 29.86 in 10.0 mi West 25.3 mph 32.2 mph N/A   Partly Cloudy
4:56 PM 69.1 °F 57.0 °F 65% 29.86 in 10.0 mi West 26.5 mph 36.8 mph N/A   Partly Cloudy
5:56 PM 66.9 °F 57.0 °F 70% 29.85 in 10.0 mi West 23.0 mph 29.9 mph N/A   Partly Cloudy
6:56 PM 64.0 °F 55.9 °F 75% 29.84 in 10.0 mi West 26.5 mph 33.4 mph N/A   Partly Cloudy
7:56 PM 63.0 °F 55.9 °F 78% 29.84 in 10.0 mi West 17.3 mph 25.3 mph N/A   Partly Cloudy
8:56 PM 62.1 °F 55.9 °F 80% 29.86 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
9:42 PM 62.6 °F 57.2 °F 82% 29.88 in 10.0 mi WNW 11.5 mph - N/A   Mostly Cloudy
9:56 PM 62.1 °F 57.0 °F 84% 29.88 in 10.0 mi NW 8.1 mph - N/A   Mostly Cloudy
10:56 PM 62.1 °F 57.0 °F 84% 29.89 in 10.0 mi West 10.4 mph - N/A   Mostly Cloudy
11:56 PM 61.0 °F 55.9 °F 83% 29.89 in 10.0 mi West 15.0 mph - N/A   Mostly Cloudy