Weather History for San Francisco, CA

Change the Weather History Date:

Thursday, January 6, 2011

  Actual Average Record
Temperature  
Mean Temperature 45 °F 50 °F  
Max Temperature 52 °F 56 °F 66 °F (2003)
Min Temperature 37 °F 44 °F 29 °F (1950)
Degree Days  
Heating Degree Days 20 15  
Month to date heating degree days 103 90  
Since 1 July heating degree days 1009 1100  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 39 °F    
Average Humidity 78    
Maximum Humidity 92    
Minimum Humidity 63    
Precipitation  
Precipitation 0.00 in 0.13 in 2.34 in (1993)
Month to date precipitation 0.44 0.82  
Year to date precipitation 0.44 0.82  
Since 1 July precipitation 9.70 8.39  
Sea Level Pressure  
Sea Level Pressure 30.21 in    
Wind  
Wind Speed 5 mph (NNE)    
Max Wind Speed 13 mph    
Max Gust Speed 17 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. 06, 2011 Rise Set
Actual Time 7:24 AM PST 5:05 PM PST
Civil Twilight 6:55 AM PST 5:35 PM PST
Nautical Twilight 6:23 AM PST 6:07 PM PST
Astronomical Twilight 5:51 AM PST 6:39 PM PST
Moon 8:46 AM PST (1/6) 7:44 PM PST (1/6)
Length of Visible Light 10h 39m
Length of Day
9h 41m
Waxing Crescent, 6% of the Moon is Illuminated
Jan 6
Waxing Crescent
Jan 12
First Quarter
Jan 19
Full
Jan 26
Last Quarter
Feb 2
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 42.1 °F 40.2 °F 37.9 °F 85% 30.28 in 10.0 mi SE 3.5 mph - N/A   Clear
1:56 AM 41.0 °F 39.0 °F 37.0 °F 86% 30.27 in 10.0 mi SSE 3.5 mph - N/A   Clear
2:56 AM 41.0 °F - 37.0 °F 86% 30.26 in 10.0 mi Calm Calm - N/A   Clear
3:56 AM 37.9 °F - 35.1 °F 89% 30.26 in 10.0 mi Calm Calm - N/A   Clear
4:56 AM 37.4 °F - 33.8 °F 87% 30.25 in 10.0 mi Calm Calm - N/A   Clear
5:56 AM 37.9 °F 35.5 °F 35.1 °F 89% 30.26 in 10.0 mi South 3.5 mph - N/A   Clear
6:56 AM 39.0 °F 35.7 °F 36.0 °F 89% 30.26 in 10.0 mi SE 4.6 mph - N/A   Partly Cloudy
7:56 AM 44.1 °F 40.1 °F 41.0 °F 89% 30.26 in 9.0 mi North 6.9 mph - N/A   Scattered Clouds
8:56 AM 45.0 °F 40.6 °F 37.0 °F 74% 30.27 in 9.0 mi NE 8.1 mph - N/A   Partly Cloudy
9:56 AM 46.0 °F 43.1 °F 37.9 °F 73% 30.27 in 9.0 mi NE 5.8 mph - N/A   Partly Cloudy
10:56 AM 46.0 °F 42.5 °F 39.9 °F 79% 30.26 in 9.0 mi NNE 6.9 mph - N/A   Partly Cloudy
11:56 AM 48.9 °F - 39.9 °F 71% 30.23 in 9.0 mi NE 4.6 mph - N/A   Partly Cloudy
12:56 PM 48.9 °F - 39.9 °F 71% 30.20 in 9.0 mi Calm Calm - N/A   Clear
1:56 PM 51.1 °F - 39.9 °F 66% 30.18 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:56 PM 52.0 °F - 41.0 °F 66% 30.17 in 10.0 mi North 3.5 mph - N/A   Partly Cloudy
3:56 PM 51.1 °F - 43.0 °F 74% 30.16 in 10.0 mi NNE 4.6 mph - N/A   Scattered Clouds
4:56 PM 48.9 °F - 39.9 °F 71% 30.15 in 10.0 mi North 6.9 mph - N/A   Scattered Clouds
5:56 PM 46.9 °F - 39.0 °F 74% 30.14 in 10.0 mi North 8.1 mph - N/A   Scattered Clouds
6:56 PM 46.0 °F 41.0 °F 39.0 °F 76% 30.15 in 10.0 mi North 10.4 mph - N/A   Partly Cloudy
7:56 PM 45.0 °F 39.7 °F 39.0 °F 80% 30.16 in 10.0 mi North 10.4 mph - N/A   Partly Cloudy
8:56 PM 45.0 °F 41.2 °F 39.9 °F 82% 30.16 in 10.0 mi NNE 6.9 mph - N/A   Partly Cloudy
9:56 PM 43.0 °F - 37.9 °F 82% 30.16 in 9.0 mi Calm Calm - N/A   Partly Cloudy
10:56 PM 45.0 °F 39.7 °F 39.9 °F 82% 30.16 in 8.0 mi NNE 10.4 mph - N/A   Partly Cloudy
11:56 PM 44.1 °F 39.5 °F 39.9 °F 85% 30.14 in 6.0 mi North 8.1 mph - N/A   Scattered Clouds