San Francisco, CA

9:14 AM PDT on June 25, 2017 (GMT -0700)
San Francisco International

Weather History for KSFO - January, 2012

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Sunday, January 29, 2012

  Actual Average Record
Temperature  
Mean Temperature 52 °F 51 °F  
Max Temperature 60 °F 58 °F 66 °F (2009)
Min Temperature 43 °F 45 °F 31 °F (1979)
Degree Days  
Heating Degree Days 13 14  
Month to date heating degree days 415 427  
Since 1 July heating degree days 1522 1437  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 43 °F    
Average Humidity 72    
Maximum Humidity 89    
Minimum Humidity 55    
Precipitation  
Precipitation 0.00 in 0.13 in 1.57 in (1968)
Month to date precipitation 2.16 3.91  
Year to date precipitation 2.16 3.91  
Since 1 July precipitation 5.03  
Sea Level Pressure  
Sea Level Pressure 30.22 in    
Wind  
Wind Speed 4 mph (SW)    
Max Wind Speed 17 mph    
Max Gust Speed 20 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jan. 29, 2012 Rise Set
Actual Time 7:15 AM PST 5:29 PM PST
Civil Twilight 6:48 AM PST 5:57 PM PST
Nautical Twilight 6:16 AM PST 6:28 PM PST
Astronomical Twilight 5:45 AM PST 6:59 PM PST
Moon 10:18 AM PST (1/29) No Moon Set
Length of Visible Light 11h 09m
Length of Day
10h 13m
Waxing Crescent, 37% of the Moon is Illuminated
Jan 29
Waxing Crescent
Jan 30
First Quarter
Feb 7
Full
Feb 14
Last Quarter
Feb 21
New

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 51.1 °F - 45.0 °F 80% 30.28 in 10.0 mi Calm Calm - N/A   Clear
1:56 AM 45.0 °F - 39.9 °F 82% 30.27 in 10.0 mi Calm Calm - N/A   Clear
2:56 AM 45.0 °F 43.5 °F 39.9 °F 82% 30.28 in 10.0 mi South 3.5 mph - N/A   Partly Cloudy
3:56 AM 45.0 °F 42.6 °F 41.0 °F 86% 30.26 in 10.0 mi South 4.6 mph - N/A   Partly Cloudy
4:56 AM 46.0 °F 44.8 °F 39.9 °F 79% 30.26 in 10.0 mi SSE 3.5 mph - N/A   Partly Cloudy
5:56 AM 44.1 °F 41.5 °F 39.0 °F 82% 30.26 in 10.0 mi South 4.6 mph - N/A   Partly Cloudy
6:56 AM 46.0 °F 44.8 °F 41.0 °F 83% 30.26 in 10.0 mi SSE 3.5 mph - N/A   Partly Cloudy
7:56 AM 48.0 °F - 41.0 °F 77% 30.27 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:56 AM 50.0 °F - 43.0 °F 77% 30.28 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:56 AM 52.0 °F - 43.0 °F 71% 30.27 in 10.0 mi East 3.5 mph - N/A   Scattered Clouds
10:56 AM 53.6 °F - 44.6 °F 72% 30.28 in 9.0 mi Calm Calm - N/A   Scattered Clouds
11:56 AM 55.4 °F - 44.6 °F 67% 30.26 in 8.0 mi Calm Calm - N/A   Scattered Clouds
12:56 PM 57.9 °F - 45.0 °F 62% 30.22 in 8.0 mi Calm Calm - N/A   Scattered Clouds
1:56 PM 60.8 °F - 44.6 °F 55% 30.20 in 8.0 mi Calm Calm - N/A   Scattered Clouds
2:56 PM 57.2 °F - 44.6 °F 63% 30.18 in 8.0 mi Calm Calm - N/A   Scattered Clouds
3:56 PM 57.0 °F - 46.0 °F 67% 30.17 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
4:56 PM 55.9 °F - 46.0 °F 69% 30.15 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
5:56 PM 57.0 °F - 43.0 °F 59% 30.14 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
6:56 PM 55.0 °F - 44.1 °F 67% 30.16 in 10.0 mi West 10.4 mph - N/A   Mostly Cloudy
7:56 PM 53.1 °F - 43.0 °F 69% 30.16 in 10.0 mi West 10.4 mph - N/A   Mostly Cloudy
8:56 PM 53.6 °F - 42.8 °F 67% 30.17 in 10.0 mi West 16.1 mph - N/A   Mostly Cloudy
9:56 PM 51.1 °F - 44.1 °F 77% 30.16 in 10.0 mi West 10.4 mph - N/A   Mostly Cloudy
10:56 PM 51.8 °F - 44.6 °F 76% 30.17 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
11:56 PM 48.9 °F - 42.1 °F 77% 30.15 in 10.0 mi SSW 4.6 mph - N/A   Scattered Clouds