Weather History for San Francisco, CA

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Wednesday, July 17, 2013

  Actual Average Record
Temperature  
Mean Temperature 61 °F 64 °F  
Max Temperature 66 °F 72 °F 105 °F (1988)
Min Temperature 55 °F 56 °F 47 °F (1954)
Degree Days  
Heating Degree Days 4 2  
Month to date heating degree days 41 34  
Since 1 June heating degree days 129 139  
Since 1 July heating degree days 41 34  
Cooling Degree Days 0 1  
Month to date cooling degree days 15 17  
Year to date cooling degree days 69 57  
Since 1 June cooling degree days 42 38  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 51 °F    
Average Humidity 72    
Maximum Humidity 86    
Minimum Humidity 58    
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in (2014)
Month to date precipitation T 0.00  
Year to date precipitation 1.89 13.08  
Since 1 July precipitation T 0.00  
Sea Level Pressure  
Sea Level Pressure 30.08 in    
Wind  
Wind Speed 14 mph (West)    
Max Wind Speed 24 mph    
Max Gust Speed 28 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jul. 17, 2013 Rise Set
Actual Time 6:01 AM PDT 8:29 PM PDT
Civil Twilight 5:31 AM PDT 8:59 PM PDT
Nautical Twilight 4:54 AM PDT 9:36 PM PDT
Astronomical Twilight 4:12 AM PDT 10:17 PM PDT
Moon 3:25 PM PDT 1:10 AM PDT
Length of Visible Light 15h 27m
Length of Day
14h 27m
Waxing Gibbous, 68% of the Moon is Illuminated
Jul 17
Waxing Gibbous
Jul 22
Full
Jul 29
Last Quarter
Aug 6
New
Aug 14
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 52.0 °F 75% 30.05 in 10.0 mi West 9.2 mph - N/A   Overcast
1:56 AM 60.1 °F 52.0 °F 75% 30.05 in 10.0 mi West 6.9 mph - N/A   Overcast
2:53 AM 59.0 °F 51.8 °F 77% 30.05 in 10.0 mi West 9.2 mph - N/A   Overcast
2:56 AM 59.0 °F 52.0 °F 78% 30.06 in 10.0 mi WSW 8.1 mph - N/A   Overcast
3:56 AM 59.0 °F 52.0 °F 78% 30.05 in 10.0 mi WNW 10.4 mph - N/A   Overcast
4:56 AM 59.0 °F 52.0 °F 78% 30.05 in 10.0 mi West 11.5 mph - N/A   Overcast
5:56 AM 57.9 °F 52.0 °F 81% 30.06 in 10.0 mi West 9.2 mph - N/A   Overcast
6:56 AM 57.9 °F 51.1 °F 78% 30.08 in 10.0 mi West 6.9 mph - N/A   Overcast
7:56 AM 57.9 °F 51.1 °F 78% 30.09 in 10.0 mi West 10.4 mph - N/A   Overcast
8:56 AM 59.0 °F 51.1 °F 75% 30.11 in 10.0 mi West 8.1 mph - N/A   Overcast
9:56 AM 60.1 °F 52.0 °F 75% 30.11 in 10.0 mi West 9.2 mph - N/A   Overcast
10:56 AM 60.1 °F 52.0 °F 75% 30.12 in 10.0 mi West 8.1 mph - N/A   Overcast
11:56 AM 61.0 °F 52.0 °F 72% 30.12 in 10.0 mi West 11.5 mph - N/A   Overcast
12:36 PM 64.4 °F 51.8 °F 64% 30.11 in 10.0 mi WNW 15.0 mph - N/A   Scattered Clouds
12:56 PM 64.9 °F 52.0 °F 63% 30.11 in 10.0 mi West 15.0 mph - N/A   Partly Cloudy
1:56 PM 66.0 °F 52.0 °F 60% 30.10 in 10.0 mi WNW 19.6 mph 24.2 mph N/A   Partly Cloudy
2:56 PM 66.0 °F 51.1 °F 59% 30.09 in 10.0 mi WNW 21.9 mph 27.6 mph N/A   Partly Cloudy
3:56 PM 64.9 °F 51.1 °F 61% 30.09 in 10.0 mi West 21.9 mph - N/A   Partly Cloudy
4:56 PM 64.0 °F 51.1 °F 63% 30.07 in 10.0 mi WNW 19.6 mph 26.5 mph N/A   Partly Cloudy
5:56 PM 62.1 °F 51.1 °F 67% 30.06 in 10.0 mi WNW 19.6 mph - N/A   Partly Cloudy
6:56 PM 59.0 °F 50.0 °F 72% 30.06 in 10.0 mi WNW 19.6 mph - N/A   Scattered Clouds
7:56 PM 57.0 °F 51.1 °F 81% 30.07 in 10.0 mi West 20.7 mph - N/A   Scattered Clouds
8:56 PM 55.9 °F 51.1 °F 84% 30.07 in 10.0 mi WNW 18.4 mph - N/A   Scattered Clouds
9:56 PM 55.0 °F 50.0 °F 83% 30.09 in 10.0 mi West 19.6 mph 24.2 mph N/A   Scattered Clouds
10:33 PM 55.4 °F 51.8 °F 88% 30.10 in 10.0 mi West 13.8 mph 23.0 mph N/A   Mostly Cloudy
10:56 PM 55.0 °F 51.1 °F 86% 30.09 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
11:56 PM 55.0 °F 51.1 °F 86% 30.09 in 10.0 mi West 11.5 mph - N/A   Mostly Cloudy