San Francisco, CA

2:50 AM PST on December 15, 2019 (GMT -0800)
San Francisco International

Weather History for KSFO - May, 2019

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Thursday, May 16, 2019

  Actual Average Record
Temperature  
Mean Temperature 57 °F 60 °F  
Max Temperature 61 °F 68 °F 93 °F (1956)
Min Temperature 53 °F 52 °F 44 °F (1984)
Degree Days  
Heating Degree Days 8 6  
Month to date heating degree days 93 102  
Since 1 July heating degree days 2212 2470  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 9 6  
Growing Degree Days 7 (Base 50)    
Moisture  
Dew Point 46 °F    
Average Humidity 70    
Maximum Humidity 77    
Minimum Humidity 62    
Precipitation  
Precipitation 0.29 in 0.02 in 0.29 in (2019)
Month to date precipitation 0.76 0.30  
Year to date precipitation 17.19 12.80  
Sea Level Pressure  
Sea Level Pressure 29.89 in    
Wind  
Wind Speed 16 mph (WSW)    
Max Wind Speed 28 mph    
Max Gust Speed 33 mph    
Visibility 9 miles    
Events Rain    
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. 16, 2019 Rise Set
Actual Time 5:59 AM PDT 8:12 PM PDT
Civil Twilight 5:29 AM PDT 8:42 PM PDT
Nautical Twilight 4:53 AM PDT 9:18 PM PDT
Astronomical Twilight 4:14 AM PDT 9:58 PM PDT
Moon 6:02 PM PDT (5/16) 4:55 AM PDT (5/16)
Length of Visible Light 15h 12m
Length of Day
14h 13m
Waxing Gibbous, 95% of the Moon is Illuminated
May 16
Waxing Gibbous
May 18
Full
May 26
Last Quarter
Jun 3
New
Jun 9
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 55.9 °F 48.0 °F 75% 29.75 in 10.0 mi West 15.0 mph - N/A   Mostly Cloudy
1:56 AM 55.0 °F 48.0 °F 77% 29.75 in 10.0 mi SW 10.4 mph - N/A   Mostly Cloudy
2:56 AM 55.0 °F 48.0 °F 77% 29.75 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
3:56 AM 55.0 °F 46.9 °F 74% 29.76 in 9.0 mi SSW 10.4 mph - 0.00 in   Overcast
4:56 AM 55.9 °F 46.9 °F 72% 29.76 in 10.0 mi SW 9.2 mph - N/A   Mostly Cloudy
5:56 AM 55.0 °F 46.9 °F 74% 29.77 in 10.0 mi SW 10.4 mph - N/A   Mostly Cloudy
6:56 AM 55.9 °F 46.9 °F 72% 29.78 in 10.0 mi SW 13.8 mph 20.7 mph N/A   Mostly Cloudy
7:56 AM 55.0 °F 46.9 °F 74% 29.81 in 7.0 mi SW 17.3 mph 21.9 mph 0.02 in Rain Rain
8:04 AM 55.0 °F 46.9 °F 74% 29.81 in 5.0 mi WSW 15.0 mph - 0.01 in Rain Light Rain
8:56 AM 55.9 °F 46.9 °F 72% 29.83 in 9.0 mi SW 13.8 mph - 0.04 in Rain Light Rain
9:30 AM 55.0 °F 46.0 °F 72% 29.84 in 5.0 mi SSW 13.8 mph - 0.01 in Rain Light Rain
9:54 AM 53.6 °F 44.6 °F 72% 29.84 in 9.0 mi SW 13.8 mph - 0.03 in Rain Light Rain
9:56 AM 54.0 °F 44.1 °F 69% 29.85 in 9.0 mi SW 15.0 mph - 0.03 in Rain Light Rain
10:56 AM 55.9 °F 46.0 °F 69% 29.86 in 7.0 mi SW 11.5 mph - 0.06 in Rain Light Rain
11:56 AM 57.9 °F 48.0 °F 70% 29.88 in 9.0 mi SW 23.0 mph 28.8 mph 0.00 in Rain Light Rain
12:56 PM 54.0 °F 44.1 °F 69% 29.91 in 2.5 mi West 12.7 mph 24.2 mph 0.12 in Rain Rain
1:10 PM 54.0 °F 44.1 °F 69% 29.92 in 4.0 mi WSW 16.1 mph - 0.01 in Rain Light Rain
1:56 PM 55.9 °F 46.0 °F 69% 29.92 in 10.0 mi West 12.7 mph - 0.01 in   Overcast
2:56 PM 57.0 °F 46.9 °F 69% 29.94 in 10.0 mi WSW 18.4 mph 26.5 mph N/A   Mostly Cloudy
3:56 PM 59.0 °F 46.9 °F 64% 29.95 in 10.0 mi WSW 21.9 mph 25.3 mph N/A   Mostly Cloudy
4:56 PM 57.0 °F 48.9 °F 74% 29.96 in 9.0 mi West 23.0 mph - 0.01 in Rain Light Rain
5:56 PM 55.9 °F 46.9 °F 72% 29.98 in 10.0 mi West 19.6 mph 32.2 mph 0.00 in   Mostly Cloudy
6:56 PM 55.0 °F 46.9 °F 74% 29.99 in 10.0 mi West 24.2 mph 32.2 mph 0.00 in   Mostly Cloudy
7:56 PM 55.9 °F 46.0 °F 69% 30.00 in 10.0 mi West 18.4 mph - N/A   Mostly Cloudy
8:56 PM 55.0 °F 45.0 °F 69% 30.03 in 10.0 mi West 18.4 mph - N/A   Mostly Cloudy
9:56 PM 55.0 °F 46.0 °F 72% 30.04 in 10.0 mi West 17.3 mph - N/A   Mostly Cloudy
10:56 PM 55.9 °F 44.1 °F 64% 30.05 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
11:56 PM 55.0 °F 45.0 °F 69% 30.06 in 10.0 mi West 15.0 mph - N/A   Mostly Cloudy