San Francisco, CA

3:00 PM PDT on April 27, 2017 (GMT -0700)
San Francisco International

Weather History for KSFO - September, 2013

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Sunday, September 29, 2013

  Actual Average Record
Temperature  
Mean Temperature 66 °F 64 °F  
Max Temperature 75 °F 73 °F 93 °F (1966)
Min Temperature 57 °F 55 °F 45 °F (1955)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 18 58  
Since 1 July heating degree days 133 171  
Cooling Degree Days 1 1  
Month to date cooling degree days 40 44  
Year to date cooling degree days 140 141  
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 56 °F    
Average Humidity 70    
Maximum Humidity 87    
Minimum Humidity 53    
Precipitation  
Precipitation 0.00 in 0.02 in 0.11 in (1971)
Month to date precipitation 0.23 0.16  
Year to date precipitation 2.12 13.28  
Since 1 July precipitation 0.23  
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 7 mph (WSW)    
Max Wind Speed 16 mph    
Max Gust Speed 21 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. 29, 2013 Rise Set
Actual Time 7:03 AM PDT 6:55 PM PDT
Civil Twilight 6:37 AM PDT 7:21 PM PDT
Nautical Twilight 6:07 AM PDT 7:51 PM PDT
Astronomical Twilight 5:36 AM PDT 8:22 PM PDT
Moon 1:55 AM PDT (9/29) 3:49 PM PDT (9/29)
Length of Visible Light 12h 43m
Length of Day
11h 51m
Waning Crescent, 26% of the Moon is Illuminated
Sep 29
Waning Crescent
Oct 4
New
Oct 11
First Quarter
Oct 18
Full
Oct 26
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 60.1 °F 54.0 °F 80% 30.09 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
1:56 AM 59.0 °F 55.0 °F 87% 30.11 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
2:56 AM 59.0 °F 55.0 °F 87% 30.09 in 10.0 mi WSW 4.6 mph - N/A   Clear
3:56 AM 59.0 °F 54.0 °F 83% 30.08 in 10.0 mi SE 5.8 mph - N/A   Clear
4:21 AM 59.0 °F 53.6 °F 82% 30.08 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:56 AM 57.9 °F 53.1 °F 84% 30.08 in 10.0 mi West 3.5 mph - N/A   Scattered Clouds
5:56 AM 57.0 °F 53.1 °F 87% 30.09 in 10.0 mi West 4.6 mph - N/A   Partly Cloudy
6:56 AM 57.9 °F 53.1 °F 84% 30.10 in 10.0 mi South 3.5 mph - N/A   Partly Cloudy
7:56 AM 59.0 °F 55.0 °F 87% 30.10 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:56 AM 63.0 °F 55.0 °F 75% 30.10 in 10.0 mi ESE 4.6 mph - N/A   Mostly Cloudy
9:56 AM 66.0 °F 55.0 °F 68% 30.11 in 10.0 mi ESE 4.6 mph - N/A   Mostly Cloudy
10:56 AM 69.1 °F 57.0 °F 65% 30.11 in 10.0 mi NE 5.8 mph - N/A   Mostly Cloudy
11:56 AM 68.0 °F 57.0 °F 68% 30.11 in 10.0 mi ENE 8.1 mph - N/A   Scattered Clouds
12:56 PM 70.0 °F 59.0 °F 68% 30.10 in 10.0 mi East 9.2 mph - N/A   Scattered Clouds
1:56 PM 72.0 °F 59.0 °F 64% 30.09 in 10.0 mi North 6.9 mph - N/A   Scattered Clouds
2:56 PM 73.9 °F 55.0 °F 52% 30.08 in 10.0 mi West 10.4 mph 16.1 mph N/A   Mostly Cloudy
3:56 PM 73.0 °F 57.0 °F 57% 30.07 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
4:56 PM 71.1 °F 57.0 °F 61% 30.07 in 10.0 mi West 13.8 mph - N/A   Scattered Clouds
5:56 PM 70.0 °F 57.9 °F 65% 30.06 in 10.0 mi West 13.8 mph - N/A   Scattered Clouds
6:56 PM 66.9 °F 57.9 °F 73% 30.06 in 10.0 mi West 11.5 mph - N/A   Scattered Clouds
7:56 PM 66.9 °F 57.0 °F 70% 30.07 in 10.0 mi WSW 8.1 mph - N/A   Scattered Clouds
8:56 PM 66.9 °F 57.0 °F 70% 30.09 in 10.0 mi NNW 6.9 mph - N/A   Scattered Clouds
9:56 PM 66.9 °F 57.9 °F 73% 30.09 in 10.0 mi WSW 10.4 mph - N/A   Scattered Clouds
10:56 PM 66.9 °F 57.9 °F 73% 30.09 in 10.0 mi WSW 4.6 mph - N/A   Scattered Clouds
11:56 PM 66.9 °F 59.0 °F 76% 30.09 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy