Weather History for San Francisco, CA

Change the Weather History Date:

Wednesday, January 11, 2012

  Actual Average Record
Temperature  
Mean Temperature 52 °F 50 °F  
Max Temperature 65 °F 56 °F 69 °F (1959)
Min Temperature 39 °F 44 °F 30 °F (1949)
Degree Days  
Heating Degree Days 13 15  
Month to date heating degree days 149 165  
Since 1 July heating degree days 1256 1175  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 1 (Base 50)    
Moisture  
Dew Point 39 °F    
Average Humidity 65    
Maximum Humidity 86    
Minimum Humidity 43    
Precipitation  
Precipitation 0.00 in 0.15 in 1.30 in (1980)
Month to date precipitation 0.00 1.54  
Year to date precipitation 0.00 1.54  
Since 1 July precipitation 2.87 9.11  
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 2 mph (West)    
Max Wind Speed 9 mph    
Max Gust Speed 12 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:

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

Jan. 11, 2012 Rise Set
Actual Time 7:24 AM PST 5:10 PM PST
Civil Twilight 6:55 AM PST 5:39 PM PST
Nautical Twilight 6:23 AM PST 6:11 PM PST
Astronomical Twilight 5:51 AM PST 6:43 PM PST
Moon 8:10 PM PST (1/11) 8:43 AM PST (1/11)
Length of Visible Light 10h 43m
Length of Day
9h 46m
Waning Gibbous, 93% of the Moon is Illuminated
Jan 11
Waning Gibbous
Jan 16
Last Quarter
Jan 22
New
Jan 30
First Quarter
Feb 7
Full

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 45.0 °F 43.5 °F 37.0 °F 74% 30.11 in 10.0 mi SSW 3.5 mph - N/A   Clear
1:56 AM 43.0 °F - 35.1 °F 74% 30.11 in 10.0 mi Calm Calm - N/A   Clear
2:56 AM 42.1 °F 39.2 °F 35.1 °F 76% 30.12 in 10.0 mi West 4.6 mph - N/A   Clear
3:56 AM 39.9 °F 37.8 °F 35.1 °F 83% 30.12 in 10.0 mi SSW 3.5 mph - N/A   Clear
5:56 AM 41.0 °F - 37.4 °F 87% 30.12 in 10.0 mi Calm Calm - N/A   Clear
6:56 AM 41.0 °F - 37.9 °F 89% 30.13 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:56 AM 42.1 °F 40.2 °F 37.9 °F 85% 30.14 in 10.0 mi South 3.5 mph - N/A   Partly Cloudy
8:56 AM 50.0 °F - 42.1 °F 74% 30.16 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:56 AM 51.8 °F - 42.8 °F 71% 30.15 in 10.0 mi Calm Calm - N/A   Partly Cloudy
10:56 AM 52.0 °F - 43.0 °F 71% 30.14 in 10.0 mi NE 3.5 mph - N/A   Partly Cloudy
11:56 AM 53.1 °F - 44.1 °F 71% 30.10 in 10.0 mi NNE 3.5 mph - N/A   Partly Cloudy
12:56 PM 54.0 °F - 45.0 °F 72% 30.08 in 10.0 mi NNE 3.5 mph - N/A   Partly Cloudy
1:56 PM 55.0 °F - 46.0 °F 72% 30.05 in 10.0 mi NNE 3.5 mph - N/A   Partly Cloudy
2:56 PM 55.9 °F - 46.9 °F 72% 30.05 in 10.0 mi Calm Calm - N/A   Partly Cloudy
3:56 PM 63.0 °F - 39.0 °F 41% 30.04 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:56 PM 55.9 °F - 44.1 °F 64% 30.04 in 10.0 mi West 3.5 mph - N/A   Partly Cloudy
5:56 PM 55.9 °F - 36.0 °F 47% 30.04 in 10.0 mi WNW 4.6 mph - N/A   Partly Cloudy
6:56 PM 53.1 °F - 36.0 °F 52% 30.06 in 10.0 mi West 9.2 mph - N/A   Clear
7:56 PM 53.6 °F - 35.6 °F 51% 30.05 in 10.0 mi Calm Calm - N/A   Clear
8:56 PM 51.1 °F - 33.1 °F 50% 30.06 in 10.0 mi SSW 3.5 mph - N/A   Partly Cloudy
9:56 PM 48.9 °F - 34.0 °F 56% 30.07 in 10.0 mi Calm Calm - N/A   Clear
10:56 PM 48.0 °F - 37.0 °F 66% 30.08 in 10.0 mi Calm Calm - N/A   Clear
11:56 PM 48.9 °F - 36.0 °F 61% 30.08 in 10.0 mi Calm Calm - N/A   Clear