San Francisco, CA

2:39 PM PST on December 05, 2019 (GMT -0800)
San Francisco International

Weather History for KSFO - May, 2019

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Wednesday, May 1, 2019

  Actual Average Record
Temperature  
Mean Temperature 60 °F 58 °F  
Max Temperature 71 °F 66 °F 89 °F (1947)
Min Temperature 49 °F 50 °F 44 °F (1988)
Degree Days  
Heating Degree Days 5 7  
Month to date heating degree days 5 7  
Since 1 July heating degree days 2124 2375  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 9 6  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 46 °F    
Average Humidity 61    
Maximum Humidity 77    
Minimum Humidity 44    
Precipitation  
Precipitation 0.00 in 0.03 in 0.20 in (2009)
Month to date precipitation 0.00 0.03  
Year to date precipitation 16.43 12.53  
Sea Level Pressure  
Sea Level Pressure 30.02 in    
Wind  
Wind Speed 9 mph (WNW)    
Max Wind Speed 23 mph    
Max Gust Speed 28 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

May. 01, 2019 Rise Set
Actual Time 6:14 AM PDT 7:59 PM PDT
Civil Twilight 5:46 AM PDT 8:27 PM PDT
Nautical Twilight 5:12 AM PDT 9:01 PM PDT
Astronomical Twilight 4:35 AM PDT 9:38 PM PDT
Moon 4:56 AM PDT (5/1) 4:58 PM PDT (5/1)
Length of Visible Light 14h 41m
Length of Day
13h 45m
Waning Crescent, 10% of the Moon is Illuminated
May 1
Waning Crescent
May 4
New
May 11
First Quarter
May 18
Full
May 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 54.0 °F 43.0 °F 66% 30.01 in 10.0 mi SW 3.5 mph - N/A   Clear
1:56 AM 51.1 °F 42.1 °F 71% 30.00 in 10.0 mi SW 5.8 mph - N/A   Clear
2:56 AM 48.9 °F 41.0 °F 74% 30.00 in 10.0 mi West 4.6 mph - N/A   Clear
3:56 AM 50.0 °F 42.1 °F 74% 30.01 in 10.0 mi WSW 4.6 mph - N/A   Clear
4:56 AM 51.1 °F 41.0 °F 68% 30.01 in 10.0 mi WSW 3.5 mph - N/A   Clear
5:56 AM 51.1 °F 41.0 °F 68% 30.01 in 10.0 mi WSW 3.5 mph - N/A   Partly Cloudy
6:56 AM 51.1 °F 44.1 °F 77% 30.03 in 9.0 mi West 5.8 mph - N/A   Scattered Clouds
7:56 AM 55.9 °F 45.0 °F 67% 30.05 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:56 AM 57.9 °F 46.0 °F 65% 30.06 in 10.0 mi NE 3.5 mph - N/A   Partly Cloudy
9:56 AM 59.0 °F 48.0 °F 67% 30.06 in 10.0 mi NE 4.6 mph - N/A   Partly Cloudy
10:56 AM 62.1 °F 48.0 °F 60% 30.06 in 10.0 mi ENE 5.8 mph - N/A   Scattered Clouds
11:56 AM 62.1 °F 48.9 °F 62% 30.06 in 10.0 mi ENE 5.8 mph - N/A   Scattered Clouds
12:56 PM 64.9 °F 51.1 °F 61% 30.04 in 10.0 mi NE 6.9 mph - N/A   Partly Cloudy
1:56 PM 70.0 °F 46.9 °F 44% 30.02 in 10.0 mi WNW 11.5 mph - N/A   Partly Cloudy
2:56 PM 70.0 °F 48.0 °F 46% 30.01 in 10.0 mi WNW 15.0 mph - N/A   Partly Cloudy
3:56 PM 66.9 °F 50.0 °F 54% 30.00 in 10.0 mi WNW 17.3 mph - N/A   Scattered Clouds
4:56 PM 64.9 °F 48.0 °F 54% 30.00 in 10.0 mi West 23.0 mph - N/A   Scattered Clouds
5:56 PM 64.9 °F 46.9 °F 52% 29.99 in 10.0 mi West 19.6 mph - N/A   Scattered Clouds
6:56 PM 62.1 °F 45.0 °F 53% 29.98 in 10.0 mi West 19.6 mph - N/A   Scattered Clouds
7:56 PM 57.9 °F 45.0 °F 62% 29.99 in 10.0 mi West 13.8 mph - N/A   Partly Cloudy
8:56 PM 60.1 °F 45.0 °F 57% 30.01 in 10.0 mi NW 5.8 mph - N/A   Partly Cloudy
9:56 PM 55.9 °F 46.0 °F 69% 30.03 in 10.0 mi WNW 10.4 mph - N/A   Partly Cloudy
10:56 PM 55.0 °F 48.0 °F 77% 30.04 in 10.0 mi NNW 10.4 mph - N/A   Partly Cloudy
11:56 PM 55.0 °F 48.0 °F 77% 30.05 in 10.0 mi WNW 6.9 mph - N/A   Partly Cloudy