Weather History for San Francisco, CA

Change the Weather History Date:

Wednesday, December 1, 2004

  Actual Average Record
Temperature  
Mean Temperature 47 °F 52 °F  
Max Temperature 55 °F 59 °F 70 °F (1959)
Min Temperature 39 °F 46 °F 38 °F (1976)
Degree Days  
Heating Degree Days 18 13  
Month to date heating degree days 13  
Since 1 July heating degree days 577  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 164  
Moisture  
Dew Point 41 °F    
Average Humidity 81    
Maximum Humidity 97    
Minimum Humidity 51    
Precipitation  
Precipitation 0.00 in 0.11 in 1.68 in (1951)
Month to date precipitation 0.11  
Year to date precipitation 16.73  
Since 1 July precipitation 3.65  
Sea Level Pressure  
Sea Level Pressure 30.26 in    
Wind  
Wind Speed 3 mph (WSW)    
Max Wind Speed 9 mph    
Max Gust Speed -    
Visibility 7 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

Dec. 01, 2004 Rise Set
Actual Time 7:06 AM PST 4:51 PM PST
Civil Twilight 6:37 AM PST 5:20 PM PST
Nautical Twilight 6:04 AM PST 5:52 PM PST
Astronomical Twilight 5:33 AM PST 6:24 PM PST
Moon 8:59 PM PST (12/1) 11:17 AM PST (12/1)
Length of Visible Light 10h 42m
Length of Day
9h 44m
Waning Gibbous, 79% of the Moon is Illuminated
Dec 1
Waning Gibbous
Dec 4
Last Quarter
Dec 11
New
Dec 18
First Quarter
Dec 26
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 43.0 °F 41.3 °F 39.9 °F 89% 30.32 in 6.0 mi South 3.5 mph - N/A   Clear
1:56 AM 41.0 °F 39.0 °F 37.9 °F 89% 30.32 in 6.0 mi SW 3.5 mph - N/A   Haze
2:56 AM 41.0 °F 39.0 °F 37.9 °F 89% 30.31 in 5.0 mi SW 3.5 mph - N/A   Haze
3:56 AM 41.0 °F - 37.9 °F 89% 30.30 in 5.0 mi Calm Calm - N/A   Haze
4:56 AM 39.9 °F - 39.0 °F 97% 30.30 in 4.0 mi Calm Calm - N/A   Clear
5:56 AM 39.9 °F 36.7 °F 39.0 °F 97% 30.30 in 4.0 mi SW 4.6 mph - N/A   Clear
6:56 AM 41.0 °F - 39.9 °F 96% 30.30 in 4.0 mi Calm Calm - N/A   Clear
7:56 AM 42.1 °F - 39.9 °F 92% 30.31 in 4.0 mi Calm Calm - N/A   Clear
8:56 AM 46.0 °F - 42.1 °F 86% 30.31 in 4.0 mi Calm Calm - N/A   Clear
9:56 AM 48.0 °F - 44.1 °F 86% 30.32 in 5.0 mi ESE 3.5 mph - N/A   Clear
10:56 AM 50.0 °F - 44.1 °F 80% 30.30 in 4.0 mi East 3.5 mph - N/A   Haze
11:56 AM 52.0 °F - 45.0 °F 77% 30.27 in 5.0 mi East 3.5 mph - N/A   Haze
12:56 PM 54.0 °F - 44.1 °F 69% 30.25 in 8.0 mi East 3.5 mph - N/A   Clear
1:56 PM 55.0 °F - 39.0 °F 55% 30.23 in 10.0 mi NE 4.6 mph - N/A   Clear
2:56 PM 55.9 °F - 37.9 °F 51% 30.22 in 10.0 mi Calm Calm - N/A   Partly Cloudy
3:56 PM 55.0 °F - 37.9 °F 53% 30.22 in 10.0 mi NW 3.5 mph - N/A   Partly Cloudy
4:56 PM 53.1 °F - 46.0 °F 77% 30.22 in 9.0 mi West 8.1 mph - N/A   Partly Cloudy
5:56 PM 52.0 °F - 46.0 °F 80% 30.22 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
6:56 PM 51.1 °F - 45.0 °F 80% 30.22 in 10.0 mi West 9.2 mph - N/A   Clear
7:56 PM 50.0 °F - 45.0 °F 83% 30.22 in 10.0 mi West 8.1 mph - N/A   Clear
8:56 PM 48.0 °F - 44.1 °F 86% 30.22 in 10.0 mi WNW 5.8 mph - N/A   Clear
9:56 PM 46.9 °F - 42.1 °F 83% 30.22 in 10.0 mi SSE 5.8 mph - N/A   Clear
10:56 PM 45.0 °F - 39.0 °F 80% 30.22 in 10.0 mi Calm Calm - N/A   Clear
11:56 PM 43.0 °F - 37.9 °F 82% 30.23 in 10.0 mi Calm Calm - N/A   Clear