San Francisco, CA

12:59 PM PST on December 12, 2019 (GMT -0800)
San Francisco International

Weather History for KSFO - May, 2019

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Wednesday, May 15, 2019

  Actual Average Record
Temperature  
Mean Temperature 59 °F 60 °F  
Max Temperature 65 °F 68 °F 96 °F (2008)
Min Temperature 53 °F 52 °F 43 °F (1955)
Degree Days  
Heating Degree Days 6 6  
Month to date heating degree days 85 96  
Since 1 July heating degree days 2204 2464  
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 52 °F    
Average Humidity 78    
Maximum Humidity 93    
Minimum Humidity 63    
Precipitation  
Precipitation 0.47 in 0.01 in 1.03 in (1996)
Month to date precipitation 0.47 0.28  
Year to date precipitation 16.90 12.78  
Sea Level Pressure  
Sea Level Pressure 29.80 in    
Wind  
Wind Speed 14 mph (South)    
Max Wind Speed 29 mph    
Max Gust Speed 38 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. 15, 2019 Rise Set
Actual Time 6:00 AM PDT 8:12 PM PDT
Civil Twilight 5:30 AM PDT 8:41 PM PDT
Nautical Twilight 4:54 AM PDT 9:17 PM PDT
Astronomical Twilight 4:15 AM PDT 9:56 PM PDT
Moon 4:54 PM PDT (5/15) 4:22 AM PDT (5/15)
Length of Visible Light 15h 10m
Length of Day
14h 11m
Waxing Gibbous, 88% of the Moon is Illuminated
May 15
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 59.0 °F 50.0 °F 72% 29.93 in 10.0 mi South 9.2 mph - N/A   Overcast
1:56 AM 60.1 °F 50.0 °F 69% 29.91 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:56 AM 59.0 °F 48.9 °F 69% 29.90 in 10.0 mi South 5.8 mph - N/A   Overcast
3:56 AM 60.1 °F 48.9 °F 67% 29.89 in 10.0 mi SSW 11.5 mph - N/A   Overcast
4:56 AM 57.9 °F 51.1 °F 78% 29.86 in 10.0 mi SE 6.9 mph - 0.00 in   Overcast
5:56 AM 57.9 °F 52.0 °F 81% 29.85 in 10.0 mi South 5.8 mph - 0.00 in   Overcast
6:56 AM 57.9 °F 53.1 °F 84% 29.86 in 10.0 mi SSE 6.9 mph - N/A   Overcast
7:13 AM 57.9 °F 53.1 °F 84% 29.85 in 10.0 mi South 5.8 mph - N/A   Overcast
7:56 AM 57.9 °F 53.1 °F 84% 29.86 in 9.0 mi SSE 16.1 mph - 0.00 in Rain Light Rain
8:56 AM 59.0 °F 53.1 °F 81% 29.86 in 10.0 mi South 12.7 mph - 0.01 in   Overcast
9:56 AM 60.1 °F 54.0 °F 80% 29.86 in 7.0 mi SSE 10.4 mph - 0.00 in Rain Light Rain
10:56 AM 61.0 °F 55.0 °F 81% 29.85 in 7.0 mi SSE 9.2 mph - 0.01 in Rain Light Rain
11:56 AM 62.1 °F 55.9 °F 80% 29.84 in 9.0 mi SSE 8.1 mph - 0.03 in Rain Light Rain
12:56 PM 63.0 °F 54.0 °F 72% 29.82 in 10.0 mi SSE 17.3 mph - 0.00 in   Overcast
1:56 PM 64.0 °F 53.1 °F 67% 29.79 in 10.0 mi South 18.4 mph 29.9 mph N/A   Overcast
2:56 PM 64.0 °F 51.1 °F 63% 29.76 in 10.0 mi SSE 20.7 mph 36.8 mph N/A   Overcast
3:56 PM 64.0 °F 52.0 °F 65% 29.73 in 10.0 mi South 23.0 mph 33.4 mph N/A   Overcast
4:56 PM 61.0 °F 52.0 °F 72% 29.73 in 10.0 mi SSE 26.5 mph 34.5 mph 0.00 in Rain Light Rain
5:56 PM 60.1 °F 53.1 °F 78% 29.71 in 7.0 mi SSE 17.3 mph - 0.05 in Rain Light Rain
6:56 PM 57.9 °F 53.1 °F 84% 29.68 in 8.0 mi SE 18.4 mph - 0.08 in Rain Light Rain
7:56 PM 60.1 °F 53.1 °F 78% 29.66 in 7.0 mi SE 18.4 mph 28.8 mph 0.07 in Rain Rain
8:56 PM 59.0 °F 54.0 °F 83% 29.65 in 7.0 mi SE 15.0 mph - 0.16 in Rain Light Rain
9:56 PM 59.0 °F 53.1 °F 81% 29.69 in 6.0 mi WSW 20.7 mph 34.5 mph 0.01 in Rain Light Rain
10:00 PM 55.9 °F 52.0 °F 87% 29.69 in 6.0 mi West 26.5 mph 34.5 mph 0.00 in Rain Light Rain
10:56 PM 54.0 °F 51.1 °F 90% 29.73 in 5.0 mi West 13.8 mph - 0.03 in Rain Light Rain
11:56 PM 55.0 °F 50.0 °F 83% 29.74 in 10.0 mi SW 12.7 mph - 0.02 in   Overcast