San Francisco, CA

11:05 PM PST on December 15, 2019 (GMT -0800)
San Francisco International

Weather History for KSFO - May, 2019

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Thursday, May 23, 2019

  Actual Average Record
Temperature  
Mean Temperature 62 °F 60 °F  
Max Temperature 71 °F 68 °F 88 °F (2000)
Min Temperature 52 °F 52 °F 46 °F (1954)
Degree Days  
Heating Degree Days 3 5  
Month to date heating degree days 146 141  
Since 1 July heating degree days 2265 2509  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 9 6  
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 51 °F    
Average Humidity 73    
Maximum Humidity 93    
Minimum Humidity 53    
Precipitation  
Precipitation 0.00 in 0.01 in 0.21 in (1997)
Month to date precipitation 2.00 0.39  
Year to date precipitation 18.43 12.89  
Sea Level Pressure  
Sea Level Pressure 29.84 in    
Wind  
Wind Speed 8 mph (WSW)    
Max Wind Speed 16 mph    
Max Gust Speed 19 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. 23, 2019 Rise Set
Actual Time 5:54 AM PDT 8:18 PM PDT
Civil Twilight 5:24 AM PDT 8:48 PM PDT
Nautical Twilight 4:47 AM PDT 9:25 PM PDT
Astronomical Twilight 4:06 AM PDT 10:06 PM PDT
Moon 12:05 AM PDT (5/23) 10:03 AM PDT (5/23)
Length of Visible Light 15h 24m
Length of Day
14h 24m
Waning Gibbous, 76% of the Moon is Illuminated
May 23
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 55.9 °F 51.1 °F 84% 29.78 in 9.0 mi West 12.7 mph - N/A   Partly Cloudy
1:56 AM 55.9 °F 51.1 °F 84% 29.78 in 9.0 mi WNW 6.9 mph - N/A   Partly Cloudy
2:56 AM 55.0 °F 51.1 °F 86% 29.78 in 8.0 mi West 10.4 mph - N/A   Partly Cloudy
3:56 AM 55.0 °F 51.1 °F 86% 29.78 in 8.0 mi West 12.7 mph - N/A   Mostly Cloudy
4:56 AM 55.0 °F 50.0 °F 83% 29.78 in 8.0 mi West 11.5 mph - N/A   Mostly Cloudy
5:44 AM 53.1 °F 50.0 °F 89% 29.78 in 9.0 mi West 9.2 mph - N/A   Scattered Clouds
5:56 AM 53.1 °F 50.0 °F 89% 29.78 in 9.0 mi West 8.1 mph - N/A   Scattered Clouds
6:56 AM 54.0 °F 51.1 °F 90% 29.79 in 9.0 mi WNW 4.6 mph - N/A   Mostly Cloudy
7:56 AM 55.9 °F 51.1 °F 84% 29.80 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
8:56 AM 57.9 °F 51.1 °F 78% 29.81 in 9.0 mi SW 6.9 mph - N/A   Overcast
9:56 AM 61.0 °F 52.0 °F 72% 29.82 in 9.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
10:56 AM 64.0 °F 54.0 °F 70% 29.81 in 9.0 mi NE 5.8 mph - N/A   Mostly Cloudy
11:56 AM 66.9 °F 54.0 °F 63% 29.81 in 9.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
12:56 PM 68.0 °F 54.0 °F 61% 29.82 in 9.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
1:56 PM 70.0 °F 53.1 °F 55% 29.82 in 9.0 mi Variable 5.8 mph - N/A   Partly Cloudy
2:56 PM 70.0 °F 52.0 °F 53% 29.82 in 10.0 mi SSW 8.1 mph - N/A   Partly Cloudy
3:56 PM 68.0 °F 52.0 °F 56% 29.83 in 10.0 mi SSW 6.9 mph - N/A   Scattered Clouds
4:56 PM 66.9 °F 51.1 °F 57% 29.84 in 10.0 mi South 11.5 mph - N/A   Scattered Clouds
5:56 PM 64.0 °F 51.1 °F 63% 29.86 in 10.0 mi SSW 10.4 mph - N/A   Scattered Clouds
6:56 PM 64.0 °F 51.1 °F 63% 29.86 in 10.0 mi South 11.5 mph - N/A   Partly Cloudy
7:56 PM 61.0 °F 51.1 °F 70% 29.90 in 10.0 mi SW 10.4 mph - N/A   Partly Cloudy
8:56 PM 60.1 °F 50.0 °F 69% 29.94 in 10.0 mi Variable 3.5 mph - N/A   Partly Cloudy
9:56 PM 59.0 °F 50.0 °F 72% 29.96 in 10.0 mi SW 6.9 mph - N/A   Partly Cloudy
10:56 PM 57.9 °F 50.0 °F 75% 29.96 in 10.0 mi South 10.4 mph - N/A   Partly Cloudy
11:56 PM 57.9 °F 48.9 °F 72% 29.99 in 9.0 mi SSW 5.8 mph - N/A   Partly Cloudy