Weather History for KSFO - May, 2014

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Wednesday, May 7, 2014

  Actual Average Record
Temperature  
Mean Temperature 58 °F 59 °F  
Max Temperature 64 °F 67 °F 89 °F (2007)
Min Temperature 51 °F 51 °F 40 °F (1968)
Degree Days  
Heating Degree Days 7 6  
Month to date heating degree days 23 48  
Since 1 July heating degree days 1887 2416  
Cooling Degree Days 0 0  
Month to date cooling degree days 9 0  
Year to date cooling degree days 30 6  
Growing Degree Days 8 (Base 50)    
Moisture  
Dew Point 47 °F    
Average Humidity 68    
Maximum Humidity 83    
Minimum Humidity 52    
Precipitation  
Precipitation 0.00 in 0.01 in 0.44 in (1994)
Month to date precipitation 0.00 0.15  
Year to date precipitation 7.31 12.65  
Since 1 July precipitation 8.80  
Sea Level Pressure  
Sea Level Pressure 29.97 in    
Wind  
Wind Speed 17 mph (West)    
Max Wind Speed 30 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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Daily Weather History Graph

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Astronomy

May. 07, 2014 Rise Set
Actual Time 6:07 AM PDT 8:05 PM PDT
Civil Twilight 5:38 AM PDT 8:33 PM PDT
Nautical Twilight 5:03 AM PDT 9:08 PM PDT
Astronomical Twilight 4:26 AM PDT 9:46 PM PDT
Moon 1:22 PM PDT (5/7) 2:01 AM PDT (5/7)
Length of Visible Light 14h 55m
Length of Day
13h 57m
First Quarter, 56% of the Moon is Illuminated
May 7
First Quarter
May 14
Full
May 21
Last Quarter
May 28
New
Jun 5
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 53.1 °F 46.9 °F 80% 29.93 in 10.0 mi West 20.7 mph - N/A   Scattered Clouds
1:56 AM 53.1 °F 46.9 °F 80% 29.91 in 10.0 mi West 18.4 mph - N/A   Partly Cloudy
2:56 AM 52.0 °F 46.9 °F 83% 29.90 in 10.0 mi West 15.0 mph - N/A   Partly Cloudy
3:56 AM 52.0 °F 46.0 °F 80% 29.91 in 10.0 mi West 13.8 mph - N/A   Partly Cloudy
4:56 AM 52.0 °F 46.0 °F 80% 29.91 in 10.0 mi West 16.1 mph - N/A   Partly Cloudy
5:56 AM 51.1 °F 46.0 °F 83% 29.91 in 10.0 mi West 12.7 mph - N/A   Partly Cloudy
6:56 AM 52.0 °F 46.0 °F 80% 29.92 in 10.0 mi WSW 11.5 mph - N/A   Partly Cloudy
7:56 AM 54.0 °F 46.0 °F 75% 29.94 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
8:56 AM 55.9 °F 46.9 °F 72% 29.95 in 10.0 mi SE 3.5 mph - N/A   Partly Cloudy
9:56 AM 59.0 °F 46.9 °F 64% 29.97 in 10.0 mi East 4.6 mph - N/A   Partly Cloudy
10:56 AM 62.1 °F 48.0 °F 60% 29.98 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds
11:56 AM 63.0 °F 45.0 °F 52% 29.99 in 10.0 mi West 15.0 mph 20.7 mph N/A   Scattered Clouds
12:56 PM 62.1 °F 45.0 °F 53% 29.99 in 10.0 mi West 19.6 mph - N/A   Scattered Clouds
1:56 PM 62.1 °F 45.0 °F 53% 29.99 in 10.0 mi West 19.6 mph 26.5 mph N/A   Scattered Clouds
2:56 PM 62.1 °F 46.9 °F 58% 29.99 in 10.0 mi West 19.6 mph 33.4 mph N/A   Scattered Clouds
3:56 PM 62.1 °F 48.0 °F 60% 29.98 in 10.0 mi West 21.9 mph 34.5 mph N/A   Mostly Cloudy
4:56 PM 59.0 °F 48.0 °F 67% 29.98 in 10.0 mi West 24.2 mph 34.5 mph N/A   Mostly Cloudy
5:56 PM 61.0 °F 48.0 °F 62% 29.99 in 10.0 mi West 27.6 mph 34.5 mph N/A   Mostly Cloudy
6:56 PM 57.9 °F 46.9 °F 67% 29.99 in 10.0 mi West 26.5 mph 35.7 mph N/A   Mostly Cloudy
7:56 PM 55.9 °F 46.9 °F 72% 30.00 in 10.0 mi West 16.1 mph - N/A   Mostly Cloudy
8:56 PM 55.0 °F 48.0 °F 77% 30.01 in 10.0 mi West 23.0 mph 28.8 mph N/A   Scattered Clouds
9:56 PM 55.0 °F 48.0 °F 77% 30.01 in 10.0 mi West 20.7 mph 28.8 mph N/A   Scattered Clouds
10:56 PM 54.0 °F 48.0 °F 80% 30.01 in 10.0 mi West 19.6 mph 27.6 mph N/A   Mostly Cloudy
11:56 PM 55.0 °F 48.0 °F 77% 30.01 in 10.0 mi West 19.6 mph 28.8 mph N/A   Mostly Cloudy