History for San Francisco, CA

Sunday, December 9, 2012 — View Current Conditions
Sunday, December 9, 2012
« Previous Day
Next Day »
Daily Weekly Monthly Custom
  Actual Average Record
Temperature
Mean Temperature 56 °F 51 °F  
Max Temperature 65 °F 57 °F 67 °F (1950)
Min Temperature 46 °F 45 °F 24 °F (1972)
Degree Days
Heating Degree Days 9 14  
Month to date heating degree days 78 120  
Since 1 July heating degree days 673 684  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 86 164  
Growing Degree Days 5 (Base 50)    
Moisture
Dew Point 42 °F    
Average Humidity 63    
Maximum Humidity 86    
Minimum Humidity 40    
Precipitation
Precipitation 0.00 in 0.12 in 1.17 in (1954)
Month to date precipitation 2.24 1.02  
Year to date precipitation 17.46 17.64  
Since 1 July precipitation 7.00 4.56  
Sea Level Pressure
Sea Level Pressure 30.14 in    
Wind
Wind Speed 2 mph (SSE)    
Max Wind Speed 9 mph    
Max Gust Speed 10 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
Daily Graph
Certify This Report
History Location
Airport:
 
Trip Planner
Search our historical database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it will be!
Date:
Radar Archive
Click to View Archived Radar Loop
This image may take a moment to generate.
Local Photos
December evening
Looking north over San Pablo Bay from Richmond Hilltop neighborhood. It is a lovely warm evening.
Ocean Beach Sunset
The high-altitude, whispy clouds seems to radiate from a single point, making for a beautiful sky at sunset on a beautiful December evening. The textur...
Fading Light
The sun sinks into a thin layer of fog above the water on the horizon of the vast Pacific Ocean. I personally like the silhouettes made by the trees an...
Unknown Fungi
A better shot of the unknown fungi (or mold?). I found more of them. The first was on a leaf/compost pile. Very difficult to shoot. These are in a pile...
Two Ladybugs
Somehow I think they're not twins.
Pin mold
My unknown fungi. Phycomyces blakesleeanus http://genome.jgi-psf.org/Phybl1/Phybl1.home.html It took a quite a bit of searching to find it
A tough nut
And the Titmouse is proving to be a tough nut for me to crack. I just can't seem to catch them in the open. There is always something obscuring the sho...
Back Off!!!
It could be territorial But I think Mr Grey is just over-ggressively playful. Either way, the neighborhood cats don't like it.
Reddish Mushrooms
Visit WunderPhotos
Astronomy
May. 21, 2013 Rise Set
Actual Time 7:13 AM PST 4:50 PM PST
Civil Twilight 6:44 AM PST 5:20 PM PST
Nautical Twilight 6:11 AM PST 5:52 PM PST
Astronomical Twilight 5:39 AM PST 6:24 PM PST
Moon 2:55 AM PST (12/9) 1:58 PM PST (12/9)
Length Of Visible Light 10h 36m
Length of Day
9h 37m
Waning Crescent, 17% of the Moon is Illuminated
Dec 9
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Visit Astronomy
Hourly Observations
Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 48.0 °F 42.1 °F 80% 30.10 in 10.0 mi SSW 4.6 mph - N/A   Clear
1:56 AM 48.0 °F 42.1 °F 80% 30.12 in 10.0 mi WSW 3.5 mph - N/A   Clear
2:56 AM 48.0 °F 43.0 °F 83% 30.11 in 10.0 mi Calm Calm - N/A   Clear
3:56 AM 46.9 °F 42.1 °F 83% 30.12 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:56 AM 46.0 °F 41.0 °F 83% 30.13 in 10.0 mi Calm Calm - N/A   Clear
5:56 AM 46.9 °F 42.1 °F 83% 30.14 in 10.0 mi South 3.5 mph - N/A   Clear
6:56 AM 46.9 °F 41.0 °F 80% 30.15 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:56 AM 48.9 °F 42.1 °F 77% 30.16 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:56 AM 55.0 °F 46.0 °F 72% 30.17 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:56 AM 55.9 °F 46.9 °F 72% 30.19 in 10.0 mi NE 4.6 mph - N/A   Partly Cloudy
10:56 AM 57.0 °F 46.0 °F 67% 30.18 in 10.0 mi Calm Calm - N/A   Partly Cloudy
11:56 AM 62.1 °F 39.9 °F 44% 30.16 in 10.0 mi Calm Calm - N/A   Partly Cloudy
12:56 PM 61.0 °F 37.9 °F 42% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:56 PM 63.0 °F 39.0 °F 41% 30.11 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:56 PM 63.0 °F 42.1 °F 46% 30.11 in 10.0 mi East 3.5 mph - N/A   Mostly Cloudy
3:56 PM 64.9 °F 39.9 °F 40% 30.11 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:56 PM 64.0 °F 39.0 °F 40% 30.12 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:56 PM 60.1 °F 44.1 °F 55% 30.13 in 10.0 mi SSE 4.6 mph - N/A   Partly Cloudy
6:56 PM 60.1 °F 42.1 °F 51% 30.15 in 10.0 mi SE 3.5 mph - N/A   Clear
7:56 PM 57.0 °F 45.0 °F 64% 30.15 in 10.0 mi SSW 5.8 mph - N/A   Clear
8:56 PM 57.9 °F 45.0 °F 62% 30.16 in 10.0 mi Calm Calm - N/A   Clear
9:56 PM 54.0 °F 43.0 °F 66% 30.17 in 10.0 mi Calm Calm - N/A   Clear
10:56 PM 55.0 °F 42.1 °F 62% 30.18 in 10.0 mi Calm Calm - N/A   Clear
11:56 PM 57.9 °F 42.1 °F 56% 30.18 in 10.0 mi East 9.2 mph - N/A   Clear
Show full METARS | METAR FAQ | Comma Delimited File