San Francisco, CA

9:58 PM PST on December 08, 2019 (GMT -0800)
San Francisco International

Weather History for KSFO - May, 2019

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Tuesday, May 28, 2019

  Actual Average Record
Temperature  
Mean Temperature 59 °F 61 °F  
Max Temperature 66 °F 69 °F 92 °F (1984)
Min Temperature 52 °F 53 °F 45 °F (1955)
Degree Days  
Heating Degree Days 6 5  
Month to date heating degree days 175 166  
Since 1 July heating degree days 2294 2534  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 9 6  
Growing Degree Days 9 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 75    
Maximum Humidity 89    
Minimum Humidity 60    
Precipitation  
Precipitation 0.00 in 0.01 in 0.41 in (1998)
Month to date precipitation 2.00 0.44  
Year to date precipitation 18.43 12.94  
Sea Level Pressure  
Sea Level Pressure 30.01 in    
Wind  
Wind Speed 12 mph (West)    
Max Wind Speed 25 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. 28, 2019 Rise Set
Actual Time 5:51 AM PDT 8:22 PM PDT
Civil Twilight 5:21 AM PDT 8:52 PM PDT
Nautical Twilight 4:43 AM PDT 9:30 PM PDT
Astronomical Twilight 4:01 AM PDT 10:12 PM PDT
Moon 2:57 AM PDT (5/28) 2:45 PM PDT (5/28)
Length of Visible Light 15h 31m
Length of Day
14h 31m
Waning Crescent, 30% of the Moon is Illuminated
May 28
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 48.0 °F 80% 30.08 in 9.0 mi West 19.6 mph - N/A   Mostly Cloudy
1:56 AM 53.1 °F 48.0 °F 83% 30.06 in 10.0 mi West 19.6 mph - N/A   Mostly Cloudy
2:56 AM 54.0 °F 48.0 °F 80% 30.06 in 9.0 mi West 15.0 mph - N/A   Mostly Cloudy
3:56 AM 53.1 °F 48.9 °F 86% 30.05 in 9.0 mi WNW 5.8 mph - N/A   Mostly Cloudy
4:56 AM 52.0 °F 48.9 °F 89% 30.04 in 9.0 mi West 9.2 mph - N/A   Mostly Cloudy
5:03 AM 54.0 °F 48.9 °F 83% 30.04 in 9.0 mi West 13.8 mph - N/A   Mostly Cloudy
5:56 AM 54.0 °F 48.9 °F 83% 30.04 in 9.0 mi WNW 8.1 mph - N/A   Mostly Cloudy
6:56 AM 55.0 °F 48.9 °F 80% 30.04 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:56 AM 55.0 °F 48.9 °F 80% 30.04 in 10.0 mi SE 3.5 mph - N/A   Overcast
8:56 AM 55.9 °F 50.0 °F 80% 30.04 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
9:56 AM 59.0 °F 51.1 °F 75% 30.04 in 10.0 mi ENE 4.6 mph - N/A   Mostly Cloudy
10:48 AM 63.0 °F 52.0 °F 67% 30.03 in 10.0 mi WNW 11.5 mph - N/A   Partly Cloudy
10:56 AM 62.1 °F 52.0 °F 70% 30.04 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
11:56 AM 61.0 °F 52.0 °F 72% 30.02 in 10.0 mi NW 15.0 mph - N/A   Partly Cloudy
12:56 PM 64.9 °F 51.1 °F 61% 30.02 in 10.0 mi West 16.1 mph - N/A   Partly Cloudy
1:56 PM 64.0 °F 51.1 °F 63% 30.01 in 10.0 mi West 15.0 mph - N/A   Partly Cloudy
2:56 PM 63.0 °F 50.0 °F 63% 30.00 in 10.0 mi West 17.3 mph - N/A   Partly Cloudy
3:56 PM 64.9 °F 50.0 °F 58% 29.98 in 10.0 mi WNW 18.4 mph - N/A   Partly Cloudy
4:56 PM 62.1 °F 50.0 °F 65% 29.97 in 10.0 mi West 19.6 mph - N/A   Partly Cloudy
5:56 PM 60.1 °F 50.0 °F 69% 29.96 in 10.0 mi West 17.3 mph - N/A   Scattered Clouds
6:56 PM 57.9 °F 48.9 °F 72% 29.95 in 10.0 mi West 20.7 mph - N/A   Mostly Cloudy
7:56 PM 55.0 °F 48.9 °F 80% 29.96 in 9.0 mi West 13.8 mph - N/A   Mostly Cloudy
8:56 PM 55.9 °F 48.9 °F 77% 29.96 in 8.0 mi West 9.2 mph - N/A   Mostly Cloudy
9:56 PM 55.9 °F 48.9 °F 77% 29.96 in 8.0 mi WSW 11.5 mph - N/A   Mostly Cloudy
10:26 PM 55.9 °F 48.9 °F 77% 29.97 in 6.0 mi WSW 12.7 mph - N/A   Haze
10:56 PM 55.9 °F 48.9 °F 77% 29.96 in 6.0 mi WSW 8.1 mph - N/A   Haze
11:56 PM 55.0 °F 48.9 °F 80% 29.95 in 6.0 mi West 5.8 mph - N/A   Haze