San Francisco, CA

8:51 PM PST on February 21, 2017 (GMT -0800)
San Francisco International

Weather History for KSFO - May, 2012

Change the Weather History Date:

Sunday, May 13, 2012

  Actual Average Record
Temperature  
Mean Temperature 58 °F 59 °F  
Max Temperature 66 °F 67 °F 92 °F (2014)
Min Temperature 50 °F 51 °F 45 °F (1956)
Degree Days  
Heating Degree Days 7 6  
Month to date heating degree days 74 84  
Since 1 July heating degree days 2581 2452  
Cooling Degree Days 0 0  
Month to date cooling degree days 2 0  
Year to date cooling degree days 7 6  
Growing Degree Days 8 (Base 50)    
Moisture  
Dew Point 46 °F    
Average Humidity 68    
Maximum Humidity 83    
Minimum Humidity 52    
Precipitation  
Precipitation 0.00 in 0.01 in 0.32 in (1995)
Month to date precipitation T 0.25  
Year to date precipitation 10.37 12.75  
Since 1 July precipitation 13.24  
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 8 mph (WSW)    
Max Wind Speed 21 mph    
Max Gust Speed 25 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport or City:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

May. 13, 2012 Rise Set
Actual Time 6:01 AM PDT 8:10 PM PDT
Civil Twilight 5:32 AM PDT 8:40 PM PDT
Nautical Twilight 4:56 AM PDT 9:16 PM PDT
Astronomical Twilight 4:17 AM PDT 9:55 PM PDT
Moon 2:01 AM PDT (5/13) 1:44 PM PDT (5/13)
Length of Visible Light 15h 08m
Length of Day
14h 09m
Last Quarter, 41% of the Moon is Illuminated
May 13
Last Quarter
May 20
New
May 28
First Quarter
Jun 4
Full
Jun 11
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 52.0 °F 46.9 °F 83% 30.06 in 10.0 mi West 9.2 mph - N/A   Clear
1:40 AM 51.8 °F 48.2 °F 88% 30.05 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
1:56 AM 52.0 °F 46.9 °F 83% 30.05 in 10.0 mi West 6.9 mph - N/A   Overcast
2:25 AM 51.8 °F 46.4 °F 82% 30.05 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
2:56 AM 51.1 °F 46.9 °F 86% 30.05 in 10.0 mi WNW 3.5 mph - N/A   Partly Cloudy
3:56 AM 52.0 °F 46.9 °F 83% 30.06 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
4:03 AM 51.8 °F 46.4 °F 82% 30.05 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:45 AM 51.8 °F 46.4 °F 82% 30.06 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:56 AM 52.0 °F 46.9 °F 83% 30.06 in 10.0 mi West 5.8 mph - N/A   Mostly Cloudy
5:56 AM 52.0 °F 45.0 °F 77% 30.06 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:56 AM 52.0 °F 45.0 °F 77% 30.07 in 10.0 mi WNW 3.5 mph - N/A   Mostly Cloudy
7:56 AM 53.1 °F 45.0 °F 74% 30.08 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
8:56 AM 55.0 °F 46.0 °F 72% 30.08 in 10.0 mi West 4.6 mph - N/A   Overcast
9:56 AM 57.9 °F 46.0 °F 65% 30.08 in 10.0 mi Variable 5.8 mph - N/A   Mostly Cloudy
10:10 AM 57.2 °F 46.4 °F 67% 30.08 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
10:56 AM 60.1 °F 46.9 °F 62% 30.08 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:56 AM 60.1 °F 48.0 °F 64% 30.08 in 10.0 mi NE 5.8 mph - N/A   Mostly Cloudy
12:56 PM 63.0 °F 50.0 °F 63% 30.08 in 10.0 mi NE 6.9 mph - N/A   Scattered Clouds
1:56 PM 64.9 °F 48.9 °F 56% 30.06 in 10.0 mi NE 6.9 mph - N/A   Scattered Clouds
2:56 PM 66.0 °F 48.0 °F 52% 30.06 in 10.0 mi South 12.7 mph 17.3 mph N/A   Scattered Clouds
3:13 PM 66.2 °F 46.4 °F 49% 30.06 in 10.0 mi SSW 17.3 mph - N/A   Scattered Clouds
3:56 PM 64.4 °F 46.4 °F 52% 30.05 in 10.0 mi SSW 17.3 mph - N/A   Scattered Clouds
4:56 PM 63.0 °F 46.0 °F 54% 30.04 in 10.0 mi SW 12.7 mph - N/A   Scattered Clouds
5:56 PM 62.1 °F 46.0 °F 56% 30.04 in 10.0 mi SW 16.1 mph - N/A   Scattered Clouds
6:56 PM 59.0 °F 45.0 °F 60% 30.05 in 10.0 mi SW 17.3 mph - N/A   Partly Cloudy
7:56 PM 57.0 °F 45.0 °F 64% 30.06 in 10.0 mi SW 11.5 mph 20.7 mph N/A   Scattered Clouds
8:56 PM 57.2 °F 44.6 °F 63% 30.07 in 10.0 mi SSW 9.2 mph - N/A   Partly Cloudy
9:56 PM 55.9 °F 45.0 °F 67% 30.09 in 10.0 mi SSW 12.7 mph - N/A   Clear
10:56 PM 55.9 °F 46.0 °F 69% 30.09 in 10.0 mi South 6.9 mph - N/A   Scattered Clouds
11:56 PM 55.9 °F 46.9 °F 72% 30.09 in 10.0 mi SSE 3.5 mph - N/A   Partly Cloudy