San Francisco, CA

9:22 PM PST on December 11, 2019 (GMT -0800)
San Francisco International

Weather History for KSFO - May, 2019

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Friday, May 31, 2019

  Actual Average Record
Temperature  
Mean Temperature 60 °F 61 °F  
Max Temperature 67 °F 69 °F 91 °F (2001)
Min Temperature 52 °F 53 °F 46 °F (1962)
Degree Days  
Heating Degree Days 5 5  
Month to date heating degree days 192 181  
Since 1 July heating degree days 2311 2548  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 13  
Year to date cooling degree days 9 19  
Growing Degree Days 9 (Base 50)    
Moisture  
Dew Point 51 °F    
Average Humidity 74    
Maximum Humidity 89    
Minimum Humidity 58    
Precipitation  
Precipitation 0.00 in 0.01 in 0.11 in (1947)
Month to date precipitation 2.00 0.47  
Year to date precipitation 18.43 12.97  
Sea Level Pressure  
Sea Level Pressure 29.89 in    
Wind  
Wind Speed 13 mph (WNW)    
Max Wind Speed 25 mph    
Max Gust Speed 31 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. 31, 2019 Rise Set
Actual Time 5:50 AM PDT 8:24 PM PDT
Civil Twilight 5:19 AM PDT 8:55 PM PDT
Nautical Twilight 4:41 AM PDT 9:33 PM PDT
Astronomical Twilight 3:59 AM PDT 10:15 PM PDT
Moon 4:21 AM PDT (5/31) 5:43 PM PDT (5/31)
Length of Visible Light 15h 35m
Length of Day
14h 34m
Waning Crescent, 8% of the Moon is Illuminated
May 31
Waning Crescent
Jun 3
New
Jun 9
First Quarter
Jun 17
Full
Jun 25
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 48.9 °F 83% 29.94 in 10.0 mi WNW 5.8 mph - N/A   Mostly Cloudy
1:56 AM 54.0 °F 50.0 °F 86% 29.94 in 10.0 mi NW 4.6 mph - N/A   Mostly Cloudy
2:56 AM 54.0 °F 50.0 °F 86% 29.93 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:56 AM 54.0 °F 48.9 °F 83% 29.92 in 10.0 mi SSE 6.9 mph - N/A   Mostly Cloudy
4:56 AM 54.0 °F 48.9 °F 83% 29.93 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
5:56 AM 54.0 °F 48.9 °F 83% 29.92 in 10.0 mi SW 3.5 mph - N/A   Overcast
6:56 AM 53.1 °F 50.0 °F 89% 29.92 in 9.0 mi Calm Calm - N/A   Overcast
7:56 AM 55.0 °F 51.1 °F 86% 29.92 in 9.0 mi SSW 3.5 mph - N/A   Overcast
8:56 AM 55.0 °F 50.0 °F 83% 29.93 in 9.0 mi NW 11.5 mph - N/A   Overcast
9:20 AM 59.0 °F 51.1 °F 75% 29.92 in 9.0 mi NW 11.5 mph - N/A   Scattered Clouds
9:56 AM 59.0 °F 51.1 °F 75% 29.92 in 9.0 mi NW 13.8 mph - N/A   Partly Cloudy
10:56 AM 61.0 °F 52.0 °F 72% 29.91 in 9.0 mi NW 16.1 mph - N/A   Partly Cloudy
11:56 AM 64.9 °F 53.1 °F 65% 29.90 in 10.0 mi NW 13.8 mph - N/A   Partly Cloudy
12:56 PM 66.0 °F 52.0 °F 60% 29.89 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
1:56 PM 66.0 °F 52.0 °F 60% 29.87 in 10.0 mi WNW 20.7 mph - N/A   Partly Cloudy
2:56 PM 64.9 °F 52.0 °F 63% 29.86 in 10.0 mi WNW 21.9 mph - N/A   Scattered Clouds
3:56 PM 64.0 °F 52.0 °F 65% 29.85 in 10.0 mi WNW 19.6 mph - N/A   Scattered Clouds
4:56 PM 61.0 °F 51.1 °F 70% 29.84 in 10.0 mi WNW 20.7 mph - N/A   Scattered Clouds
5:56 PM 59.0 °F 50.0 °F 72% 29.83 in 10.0 mi WNW 23.0 mph - N/A   Scattered Clouds
6:56 PM 55.9 °F 50.0 °F 80% 29.83 in 10.0 mi WNW 17.3 mph - N/A   Scattered Clouds
7:56 PM 55.0 °F 50.0 °F 83% 29.84 in 10.0 mi WNW 16.1 mph - N/A   Scattered Clouds
8:56 PM 54.0 °F 50.0 °F 86% 29.86 in 10.0 mi WNW 17.3 mph - N/A   Scattered Clouds
9:56 PM 54.0 °F 50.0 °F 86% 29.86 in 10.0 mi WNW 17.3 mph - N/A   Partly Cloudy
10:56 PM 53.1 °F 50.0 °F 89% 29.87 in 8.0 mi WNW 15.0 mph - N/A   Partly Cloudy
11:56 PM 53.1 °F 50.0 °F 89% 29.87 in 8.0 mi WNW 13.8 mph - N/A   Partly Cloudy