San Francisco, CA

3:34 AM PST on December 15, 2019 (GMT -0800)
San Francisco International

Weather History for KSFO - May, 2019

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Friday, May 3, 2019

  Actual Average Record
Temperature  
Mean Temperature 58 °F 58 °F  
Max Temperature 66 °F 67 °F 87 °F (2017)
Min Temperature 49 °F 51 °F 39 °F (1950)
Degree Days  
Heating Degree Days 7 7  
Month to date heating degree days 17 21  
Since 1 July heating degree days 2136 2389  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 9 6  
Growing Degree Days 8 (Base 50)    
Moisture  
Dew Point 46 °F    
Average Humidity 69    
Maximum Humidity 86    
Minimum Humidity 52    
Precipitation  
Precipitation 0.00 in 0.02 in 0.44 in (1951)
Month to date precipitation 0.00 0.07  
Year to date precipitation 16.43 12.57  
Sea Level Pressure  
Sea Level Pressure 29.96 in    
Wind  
Wind Speed 13 mph (WNW)    
Max Wind Speed 25 mph    
Max Gust Speed 30 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. 03, 2019 Rise Set
Actual Time 6:11 AM PDT 8:01 PM PDT
Civil Twilight 5:43 AM PDT 8:29 PM PDT
Nautical Twilight 5:09 AM PDT 9:04 PM PDT
Astronomical Twilight 4:32 AM PDT 9:40 PM PDT
Moon 5:52 AM PDT (5/3) 6:56 PM PDT (5/3)
Length of Visible Light 14h 46m
Length of Day
13h 49m
Waning Crescent, 1% of the Moon is Illuminated
May 3
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 50.0 °F 46.0 °F 86% 29.99 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
1:56 AM 50.0 °F 46.0 °F 86% 29.96 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
2:56 AM 51.1 °F 45.0 °F 80% 29.96 in 10.0 mi West 8.1 mph - N/A   Partly Cloudy
3:56 AM 51.1 °F 46.0 °F 83% 29.96 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
4:56 AM 51.1 °F 46.0 °F 83% 29.96 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
5:56 AM 50.0 °F 46.0 °F 86% 29.97 in 10.0 mi WNW 5.8 mph - N/A   Mostly Cloudy
6:54 AM 50.0 °F 44.6 °F 82% 29.98 in 8.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
6:56 AM 51.1 °F 45.0 °F 80% 29.98 in 9.0 mi SSW 3.5 mph - N/A   Mostly Cloudy
7:56 AM 55.0 °F 45.0 °F 69% 29.99 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:56 AM 59.0 °F 46.9 °F 64% 30.00 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:56 AM 61.0 °F 46.9 °F 60% 30.00 in 9.0 mi NW 9.2 mph - N/A   Mostly Cloudy
10:56 AM 64.0 °F 48.0 °F 56% 30.00 in 10.0 mi NW 11.5 mph - N/A   Scattered Clouds
11:56 AM 66.0 °F 48.9 °F 54% 29.99 in 10.0 mi NW 15.0 mph - N/A   Scattered Clouds
12:56 PM 64.9 °F 48.0 °F 54% 29.97 in 10.0 mi WNW 19.6 mph - N/A   Scattered Clouds
1:56 PM 64.9 °F 48.0 °F 54% 29.96 in 10.0 mi WNW 20.7 mph - N/A   Scattered Clouds
2:56 PM 66.0 °F 48.0 °F 52% 29.96 in 10.0 mi WNW 21.9 mph - N/A   Partly Cloudy
3:56 PM 64.0 °F 48.0 °F 56% 29.94 in 10.0 mi WNW 21.9 mph - N/A   Partly Cloudy
4:56 PM 63.0 °F 46.9 °F 56% 29.93 in 10.0 mi West 21.9 mph - N/A   Partly Cloudy
5:56 PM 59.0 °F 46.9 °F 64% 29.92 in 10.0 mi West 21.9 mph - N/A   Partly Cloudy
6:56 PM 57.9 °F 46.9 °F 67% 29.92 in 10.0 mi West 19.6 mph - N/A   Partly Cloudy
7:56 PM 55.0 °F 46.0 °F 72% 29.93 in 10.0 mi West 16.1 mph - N/A   Partly Cloudy
8:56 PM 54.0 °F 46.0 °F 75% 29.94 in 10.0 mi West 17.3 mph - N/A   Partly Cloudy
9:56 PM 50.0 °F 46.0 °F 86% 29.95 in 10.0 mi West 18.4 mph - N/A   Partly Cloudy
10:56 PM 50.0 °F 45.0 °F 83% 29.96 in 10.0 mi West 13.8 mph - N/A   Partly Cloudy
11:56 PM 50.0 °F 45.0 °F 83% 29.95 in 10.0 mi West 11.5 mph - N/A   Partly Cloudy