San Francisco, CA

2:02 AM PST on December 15, 2019 (GMT -0800)
San Francisco International

Weather History for KSFO - May, 2019

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Saturday, May 25, 2019

  Actual Average Record
Temperature  
Mean Temperature 61 °F 60 °F  
Max Temperature 68 °F 68 °F 87 °F (1951)
Min Temperature 53 °F 52 °F 45 °F (1967)
Degree Days  
Heating Degree Days 4 5  
Month to date heating degree days 153 151  
Since 1 July heating degree days 2272 2519  
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 48 °F    
Average Humidity 68    
Maximum Humidity 83    
Minimum Humidity 52    
Precipitation  
Precipitation T in 0.01 in 0.12 in (1946)
Month to date precipitation 2.00 0.41  
Year to date precipitation 18.43 12.91  
Sea Level Pressure  
Sea Level Pressure 29.84 in    
Wind  
Wind Speed 15 mph (WSW)    
Max Wind Speed 24 mph    
Max Gust Speed 30 mph    
Visibility 9 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. 25, 2019 Rise Set
Actual Time 5:53 AM PDT 8:20 PM PDT
Civil Twilight 5:22 AM PDT 8:50 PM PDT
Nautical Twilight 4:45 AM PDT 9:27 PM PDT
Astronomical Twilight 4:04 AM PDT 10:09 PM PDT
Moon 1:25 AM PDT (5/25) 11:55 AM PDT (5/25)
Length of Visible Light 15h 27m
Length of Day
14h 27m
Waning Gibbous, 58% of the Moon is Illuminated
May 25
Waning Gibbous
May 26
Last Quarter
Jun 3
New
Jun 9
First Quarter
Jun 17
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 55.0 °F 50.0 °F 83% 29.91 in 8.0 mi WSW 10.4 mph 19.6 mph N/A   Mostly Cloudy
1:03 AM 55.0 °F 50.0 °F 83% 29.91 in 8.0 mi WSW 6.9 mph - N/A   Mostly Cloudy
1:56 AM 55.0 °F 50.0 °F 83% 29.90 in 7.0 mi WSW 9.2 mph - N/A   Mostly Cloudy
2:56 AM 55.0 °F 48.9 °F 80% 29.88 in 7.0 mi WSW 13.8 mph - N/A   Mostly Cloudy
3:56 AM 55.0 °F 48.0 °F 77% 29.86 in 7.0 mi SW 10.4 mph - N/A   Mostly Cloudy
4:56 AM 53.1 °F 48.0 °F 83% 29.84 in 6.0 mi West 18.4 mph 23.0 mph N/A   Haze
5:18 AM 54.0 °F 46.9 °F 77% 29.84 in 7.0 mi WSW 18.4 mph - N/A   Mostly Cloudy
5:56 AM 53.1 °F 46.0 °F 77% 29.85 in 6.0 mi West 19.6 mph 29.9 mph N/A   Haze
6:56 AM 55.0 °F 45.0 °F 69% 29.85 in 8.0 mi West 13.8 mph - N/A   Mostly Cloudy
7:56 AM 55.9 °F 45.0 °F 67% 29.84 in 9.0 mi West 20.7 mph 25.3 mph N/A   Scattered Clouds
8:08 AM 55.0 °F 45.0 °F 69% 29.84 in 9.0 mi West 18.4 mph 26.5 mph N/A   Mostly Cloudy
8:56 AM 55.9 °F 46.0 °F 69% 29.85 in 9.0 mi West 11.5 mph 21.9 mph N/A   Mostly Cloudy
9:56 AM 59.0 °F 46.9 °F 64% 29.85 in 9.0 mi SW 9.2 mph - N/A   Scattered Clouds
10:56 AM 61.0 °F 46.0 °F 58% 29.84 in 10.0 mi SE 6.9 mph - N/A   Scattered Clouds
11:56 AM 64.0 °F 48.0 °F 56% 29.84 in 10.0 mi WSW 10.4 mph - N/A   Scattered Clouds
12:56 PM 64.0 °F 48.9 °F 58% 29.85 in 10.0 mi SSW 9.2 mph - N/A   Scattered Clouds
1:56 PM 64.9 °F 48.0 °F 54% 29.83 in 10.0 mi WSW 8.1 mph - N/A   Partly Cloudy
2:56 PM 66.9 °F 48.9 °F 52% 29.83 in 10.0 mi WSW 15.0 mph - N/A   Partly Cloudy
3:56 PM 64.9 °F 48.9 °F 56% 29.83 in 10.0 mi WSW 16.1 mph 24.2 mph N/A   Partly Cloudy
4:56 PM 61.0 °F 48.0 °F 62% 29.82 in 10.0 mi WSW 18.4 mph 26.5 mph N/A   Partly Cloudy
5:56 PM 59.0 °F 46.9 °F 64% 29.82 in 10.0 mi West 21.9 mph 27.6 mph N/A   Scattered Clouds
6:56 PM 57.9 °F 46.9 °F 67% 29.82 in 10.0 mi WSW 17.3 mph - N/A   Scattered Clouds
7:22 PM 55.9 °F 46.9 °F 72% 29.82 in 10.0 mi West 21.9 mph 25.3 mph N/A   Mostly Cloudy
7:56 PM 55.0 °F 46.9 °F 74% 29.83 in 10.0 mi WSW 17.3 mph - N/A   Mostly Cloudy
8:56 PM 55.9 °F 46.9 °F 72% 29.82 in 10.0 mi SW 20.7 mph - N/A   Mostly Cloudy
9:56 PM 55.9 °F 46.9 °F 72% 29.82 in 10.0 mi SW 11.5 mph - N/A   Mostly Cloudy
10:56 PM 55.9 °F 48.0 °F 75% 29.81 in 7.0 mi WSW 11.5 mph - N/A   Overcast
11:52 PM 55.4 °F 48.2 °F 77% 29.79 in 7.0 mi West 18.4 mph 25.3 mph N/A   Mostly Cloudy
11:56 PM 55.0 °F 48.0 °F 77% 29.79 in 7.0 mi WSW 18.4 mph - N/A   Mostly Cloudy