Weather History for San Francisco, CA

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Monday, September 15, 2014

  Actual Average Record
Temperature  
Mean Temperature 70 °F 65 °F  
Max Temperature 78 °F 74 °F 98 °F (1971)
Min Temperature 62 °F 56 °F 48 °F (1970)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 3 30  
Since 1 July heating degree days 23 143  
Cooling Degree Days 5 2  
Month to date cooling degree days 39 30  
Year to date cooling degree days 292 127  
Growing Degree Days 20 (Base 50)    
Moisture  
Dew Point 58 °F    
Average Humidity 66    
Maximum Humidity 90    
Minimum Humidity 42    
Precipitation  
Precipitation 0.00 in 0.00 in 0.05 in (1908)
Month to date precipitation 0.00 0.05  
Year to date precipitation 7.31 13.17  
Since 1 July precipitation T 0.09  
Sea Level Pressure  
Sea Level Pressure 29.90 in    
Wind  
Wind Speed 12 mph (West)    
Max Wind Speed 21 mph    
Max Gust Speed 25 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 15, 2014 Rise Set
Actual Time 6:51 AM PDT 7:17 PM PDT
Civil Twilight 6:25 AM PDT 7:43 PM PDT
Nautical Twilight 5:54 AM PDT 8:14 PM PDT
Astronomical Twilight 5:22 AM PDT 8:45 PM PDT
Moon No Moon Rise 1:49 PM PDT (9/15)
Length of Visible Light 13h 18m
Length of Day
12h 25m
Waning Gibbous, 53% of the Moon is Illuminated
Sep 15
Waning Gibbous
Sep 15
Last Quarter
Sep 23
New
Oct 1
First Quarter
Oct 8
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 64.4 °F 59.0 °F 83% 29.85 in 10.0 mi West 11.5 mph - N/A   Partly Cloudy
1:56 AM 63.0 °F 59.0 °F 87% 29.86 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds
2:56 AM 64.0 °F 60.1 °F 87% 29.86 in 10.0 mi West 10.4 mph - N/A   Scattered Clouds
3:03 AM 64.4 °F 59.0 °F 83% 29.86 in 10.0 mi West 8.1 mph - N/A   Mostly Cloudy
3:10 AM 64.4 °F 59.0 °F 83% 29.86 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
3:56 AM 63.0 °F 59.0 °F 87% 29.86 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
4:56 AM 63.0 °F 59.0 °F 87% 29.86 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
5:56 AM 63.0 °F 59.0 °F 87% 29.88 in 10.0 mi West 9.2 mph - N/A   Scattered Clouds
6:56 AM 62.1 °F 57.9 °F 86% 29.89 in 10.0 mi West 11.5 mph - N/A   Scattered Clouds
7:56 AM 63.0 °F 59.0 °F 87% 29.91 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
8:56 AM 64.9 °F 59.0 °F 81% 29.92 in 10.0 mi WNW 13.8 mph - N/A   Mostly Cloudy
9:56 AM 68.0 °F 59.0 °F 73% 29.93 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds
10:56 AM 69.1 °F 59.0 °F 70% 29.93 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
11:56 AM 73.0 °F 60.1 °F 64% 29.91 in 10.0 mi NW 8.1 mph - N/A   Partly Cloudy
12:56 PM 75.9 °F 57.9 °F 54% 29.91 in 10.0 mi West 19.6 mph - N/A   Partly Cloudy
1:56 PM 77.0 °F 55.0 °F 47% 29.91 in 10.0 mi WNW 18.4 mph 24.2 mph N/A   Partly Cloudy
2:56 PM 77.0 °F 54.0 °F 45% 29.90 in 10.0 mi WNW 18.4 mph - N/A   Partly Cloudy
3:56 PM 78.1 °F 54.0 °F 43% 29.89 in 10.0 mi WNW 17.3 mph - N/A   Clear
4:56 PM 75.0 °F 55.0 °F 50% 29.89 in 10.0 mi West 17.3 mph - N/A   Clear
5:56 PM 73.0 °F 55.9 °F 55% 29.89 in 10.0 mi West 13.8 mph - N/A   Clear
6:56 PM 70.0 °F 57.0 °F 63% 29.89 in 10.0 mi West 12.7 mph - N/A   Partly Cloudy
7:56 PM 68.0 °F 55.0 °F 63% 29.90 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
8:56 PM 66.9 °F 57.9 °F 73% 29.92 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
9:56 PM 66.9 °F 57.9 °F 73% 29.92 in 10.0 mi West 13.8 mph - N/A   Partly Cloudy
10:56 PM 66.9 °F 59.0 °F 76% 29.93 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
11:56 PM 64.9 °F 61.0 °F 87% 29.94 in 10.0 mi WNW 4.6 mph - N/A   Partly Cloudy