Weather History for KVSF - December, 2012

Change the Weather History Date:

Tuesday, December 4, 2012

  Actual Average Record
Temperature  
Mean Temperature 39 °F 30 °F  
Max Temperature 50 °F 38 °F 64 °F (1998)
Min Temperature 28 °F 22 °F 3 °F (2003)
Degree Days  
Heating Degree Days 26 35  
Month to date heating degree days 124 138  
Since 1 July heating degree days 1461 1781  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 345  
Moisture  
Dew Point 35 °F    
Average Humidity 95    
Maximum Humidity 100    
Minimum Humidity 89    
Precipitation  
Precipitation 0.03 in 0.12 in 0.24 in (1999)
Month to date precipitation 0.17 0.47  
Year to date precipitation 30.67 41.05  
Sea Level Pressure  
Sea Level Pressure 30.21 in    
Wind  
Wind Speed 1 mph (SW)    
Max Wind Speed 7 mph    
Max Gust Speed 10 mph    
Visibility 3 miles    
Events Fog , Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport or City:

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. 04, 2012 Rise Set
Actual Time 7:06 AM EST 4:14 PM EST
Civil Twilight 6:34 AM EST 4:46 PM EST
Nautical Twilight 5:58 AM EST 5:22 PM EST
Astronomical Twilight 5:23 AM EST 5:56 PM EST
Moon 10:05 PM EST (12/4) 10:53 AM EST (12/4)
Length of Visible Light 10h 12m
Length of Day
9h 08m
Waning Gibbous, 69% of the Moon is Illuminated
Dec 4
Waning Gibbous
Dec 6
Last Quarter
Dec 13
New
Dec 20
First Quarter
Dec 28
Full

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:07 AM 28.4 °F - 28.4 °F 100% 30.29 in 0.5 mi Calm Calm - N/A Fog Light Freezing Fog
12:17 AM 28.4 °F - 28.4 °F 100% 30.29 in 0.2 mi Calm Calm - N/A Fog Light Freezing Fog
12:42 AM 28.4 °F - 28.4 °F 100% 30.28 in 0.5 mi Calm Calm - N/A Fog Light Freezing Fog
12:54 AM 30.0 °F - 28.0 °F 92% 30.31 in 0.5 mi Calm Calm - N/A Fog Light Freezing Fog
1:17 AM 28.4 °F - 28.4 °F 100% 30.29 in 0.2 mi Calm Calm - N/A Fog Light Freezing Fog
1:54 AM 30.0 °F - 28.9 °F 96% 30.31 in 0.2 mi Calm Calm - N/A Fog Light Freezing Fog
2:54 AM 30.0 °F - 28.0 °F 92% 30.30 in 0.2 mi Calm Calm - N/A Fog Light Freezing Fog
3:54 AM 30.0 °F - 28.9 °F 96% 30.30 in 0.2 mi Calm Calm - N/A Fog Light Freezing Fog
4:54 AM 30.0 °F - 28.9 °F 96% 30.31 in 0.2 mi Calm Calm - N/A Fog Light Freezing Fog
5:10 AM 30.2 °F - 28.4 °F 93% 30.28 in 0.5 mi Calm Calm - N/A Fog Light Freezing Fog
5:29 AM 30.2 °F - 28.4 °F 93% 30.28 in 1.8 mi Calm Calm - N/A   Overcast
5:54 AM 30.0 °F - 28.9 °F 96% 30.30 in 2.0 mi Calm Calm - N/A   Overcast
6:04 AM 30.2 °F - 28.4 °F 93% 30.28 in 3.0 mi Calm Calm - N/A   Overcast
6:47 AM 30.2 °F - 30.2 °F 100% 30.28 in 2.5 mi Calm Calm - N/A   Overcast
6:54 AM 30.0 °F - 28.9 °F 96% 30.30 in 2.0 mi Calm Calm - N/A   Overcast
7:09 AM 30.2 °F - 30.2 °F 100% 30.27 in 2.0 mi Calm Calm - N/A   Overcast
7:23 AM 30.2 °F - 30.2 °F 100% 30.27 in 3.0 mi Calm Calm - N/A   Overcast
7:34 AM 30.2 °F - 30.2 °F 100% 30.27 in 4.0 mi Calm Calm - N/A   Overcast
7:54 AM 30.9 °F - 30.0 °F 96% 30.30 in 4.0 mi Calm Calm - N/A   Overcast
8:54 AM 32.0 °F - 32.0 °F 100% 30.29 in 4.0 mi Calm Calm - N/A   Overcast
9:46 AM 33.8 °F - 32.0 °F 93% 30.26 in 1.8 mi Calm Calm - 0.02 in Rain Light Rain
9:54 AM 34.0 °F - 33.1 °F 96% 30.28 in 1.8 mi Calm Calm - 0.03 in Rain Light Rain
10:01 AM 33.8 °F - 33.8 °F 100% 30.25 in 3.0 mi Calm Calm - 0.00 in Rain Light Rain
10:54 AM 37.0 °F - 35.1 °F 93% 30.25 in 9.0 mi Calm Calm - 0.00 in   Overcast
11:54 AM 39.0 °F - 37.0 °F 93% 30.22 in 8.0 mi Calm Calm - N/A   Overcast
12:43 PM 41.0 °F - 37.4 °F 87% 30.18 in 9.0 mi Calm Calm - N/A   Overcast
1:54 PM 43.0 °F - 39.9 °F 89% 30.16 in 6.0 mi Calm Calm - N/A   Overcast
2:46 PM 42.8 °F - 41.0 °F 93% 30.12 in 4.0 mi Calm Calm - N/A   Overcast
2:54 PM 43.0 °F - 41.0 °F 93% 30.15 in 3.0 mi Calm Calm - N/A   Overcast
3:54 PM 44.1 °F - 42.1 °F 93% 30.13 in 4.0 mi Calm Calm - N/A   Overcast
4:18 PM 44.6 °F - 42.8 °F 93% 30.10 in 5.0 mi Calm Calm - N/A   Overcast
4:54 PM 44.1 °F 41.5 °F 43.0 °F 96% 30.12 in 6.0 mi South 4.6 mph - N/A   Overcast
5:54 PM 42.1 °F 39.2 °F 41.0 °F 96% 30.09 in 4.0 mi NW 4.6 mph - N/A   Overcast
6:54 PM 43.0 °F - 42.1 °F 97% 30.06 in 3.0 mi Calm Calm - N/A   Overcast
7:54 PM 46.9 °F - 46.0 °F 97% 30.04 in 8.0 mi SSW 4.6 mph - N/A   Overcast
8:54 PM 48.0 °F - 46.0 °F 93% 30.01 in 6.0 mi Calm Calm - N/A   Overcast
9:54 PM 45.0 °F - 44.1 °F 97% 29.97 in 3.0 mi Calm Calm - N/A   Overcast
10:54 PM 48.9 °F - 48.0 °F 97% 29.94 in 5.0 mi Calm Calm - N/A   Overcast
11:54 PM 46.0 °F - 44.1 °F 93% 29.91 in 3.0 mi Calm Calm - 0.00 in Rain Light Rain