Weather History for KSFF - December, 2012

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Tuesday, December 25, 2012

  Actual Average Record
Temperature  
Mean Temperature 31 °F 29 °F  
Max Temperature 36 °F 35 °F 50 °F (2005)
Min Temperature 26 °F 23 °F 10 °F (1996)
Degree Days  
Heating Degree Days 34 36  
Month to date heating degree days 679 879  
Since 1 July heating degree days 1952 2453  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 509 406  
Moisture  
Dew Point 27 °F    
Average Humidity 78    
Maximum Humidity 92    
Minimum Humidity 64    
Precipitation  
Precipitation 0.00 in 0.09 in 0.60 in (1998)
Month to date precipitation 1.72 2.11  
Year to date precipitation 20.48 17.33  
Sea Level Pressure  
Sea Level Pressure 30.01 in    
Wind  
Wind Speed 3 mph (East)    
Max Wind Speed 13 mph    
Max Gust Speed 17 mph    
Visibility 7 miles    
Events Fog , Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 25, 2012 Rise Set
Actual Time 7:36 AM PST 4:02 PM PST
Civil Twilight 7:00 AM PST 4:38 PM PST
Nautical Twilight 6:21 AM PST 5:18 PM PST
Astronomical Twilight 5:43 AM PST 5:55 PM PST
Moon 2:16 PM PST (12/25) 5:10 AM PST (12/25)
Length of Visible Light 9h 38m
Length of Day
8h 25m
Waxing Gibbous, 94% of the Moon is Illuminated
Dec 25
Waxing Gibbous
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:43 AM 32.0 °F - 28.4 °F 87% 30.15 in 9.0 mi Calm Calm - N/A   Overcast
12:53 AM 30.9 °F 27.5 °F 27.0 °F 85% 30.20 in 9.0 mi ENE 3.5 mph - N/A   Overcast
1:01 AM 32.0 °F - 28.4 °F 87% 30.15 in 10.0 mi Calm Calm - N/A   Overcast
1:11 AM 32.0 °F - 28.4 °F 87% 30.15 in 9.0 mi Calm Calm - N/A   Overcast
1:19 AM 32.0 °F - 28.4 °F 87% 30.15 in 9.0 mi Calm Calm - N/A   Overcast
1:53 AM 32.0 °F - 28.0 °F 85% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
2:49 AM 32.0 °F - 28.4 °F 87% 30.13 in 9.0 mi Calm Calm - N/A   Overcast
2:53 AM 32.0 °F 28.7 °F 28.0 °F 85% 30.18 in 10.0 mi NE 3.5 mph - N/A   Overcast
3:17 AM 30.2 °F - 28.4 °F 93% 30.12 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
3:53 AM 30.9 °F - 27.0 °F 85% 30.16 in 6.0 mi Calm Calm - N/A   Clear
4:40 AM 28.4 °F - 26.6 °F 93% 30.10 in 1.8 mi Calm Calm - N/A   Clear
4:45 AM 26.6 °F - 24.8 °F 93% 30.10 in 0.5 mi Calm Calm - N/A Fog Light Freezing Fog
4:53 AM 27.0 °F - 24.1 °F 89% 30.15 in 0.2 mi Calm Calm - N/A Fog Light Freezing Fog
4:59 AM 28.4 °F - 24.8 °F 86% 30.09 in 1.0 mi Calm Calm - N/A   Mist
5:02 AM 28.4 °F - 24.8 °F 86% 30.09 in 2.0 mi Calm Calm - N/A   Partly Cloudy
5:10 AM 28.4 °F - 26.6 °F 93% 30.09 in 4.0 mi Calm Calm - N/A   Partly Cloudy
5:41 AM 28.4 °F - 24.8 °F 86% 30.07 in 2.5 mi Calm Calm - N/A   Mostly Cloudy
5:53 AM 28.0 °F 24.2 °F 25.0 °F 88% 30.12 in 5.0 mi NNE 3.5 mph - N/A   Mostly Cloudy
6:05 AM 28.4 °F - 24.8 °F 86% 30.07 in 5.0 mi Calm Calm - N/A   Scattered Clouds
6:53 AM 28.0 °F - 25.0 °F 88% 30.09 in 6.0 mi Calm Calm - N/A Fog Patches of Fog
7:53 AM 28.0 °F - 24.1 °F 85% 30.08 in 10.0 mi Calm Calm - N/A Fog Patches of Fog
8:53 AM 30.0 °F - 26.1 °F 85% 30.06 in 10.0 mi Calm Calm - N/A Fog Patches of Fog
9:53 AM 30.0 °F 26.5 °F 26.1 °F 85% 30.04 in 10.0 mi SSE 3.5 mph - N/A Fog Patches of Fog
10:53 AM 33.1 °F 30.0 °F 27.0 °F 78% 30.00 in 10.0 mi SSE 3.5 mph - N/A   Mostly Cloudy
11:53 AM 36.0 °F 31.1 °F 26.1 °F 67% 29.96 in 10.0 mi East 5.8 mph - N/A   Scattered Clouds
12:53 PM 36.0 °F 27.1 °F 26.1 °F 67% 29.91 in 10.0 mi East 13.8 mph - N/A   Scattered Clouds
1:53 PM 36.0 °F 29.0 °F 25.0 °F 64% 29.90 in 10.0 mi East 9.2 mph - N/A   Mostly Cloudy
2:53 PM 36.0 °F 31.1 °F 25.0 °F 64% 29.90 in 10.0 mi East 5.8 mph - N/A   Mostly Cloudy
3:53 PM 35.1 °F 31.0 °F 25.0 °F 67% 29.88 in 10.0 mi ESE 4.6 mph - N/A   Overcast
4:53 PM 35.1 °F 30.1 °F 26.1 °F 70% 29.89 in 10.0 mi SE 5.8 mph - N/A   Overcast
5:53 PM 35.1 °F - 27.0 °F 72% 29.89 in 10.0 mi Calm Calm - N/A   Overcast
6:53 PM 33.1 °F - 28.0 °F 82% 29.88 in 4.0 mi Calm Calm - 0.00 in Snow Light Snow
7:41 PM 32.0 °F 28.7 °F 28.4 °F 87% 29.82 in 2.0 mi ENE 3.5 mph - 0.00 in Snow Light Snow
7:53 PM 32.0 °F 26.4 °F 28.0 °F 85% 29.88 in 2.0 mi ENE 5.8 mph - 0.00 in Snow Light Snow
8:16 PM 32.0 °F 25.6 °F 28.4 °F 87% 29.82 in 1.8 mi East 6.9 mph - 0.00 in Snow Light Snow
8:33 PM 32.0 °F 26.4 °F 28.4 °F 87% 29.82 in 2.0 mi East 5.8 mph - 0.00 in Snow Light Snow
8:53 PM 32.0 °F - 28.0 °F 85% 29.86 in 3.0 mi Calm Calm - 0.00 in Snow Light Snow
9:07 PM 32.0 °F - 28.4 °F 87% 29.82 in 5.0 mi Calm Calm - 0.00 in Snow Light Snow
9:53 PM 32.0 °F 28.7 °F 28.0 °F 85% 29.86 in 8.0 mi SE 3.5 mph - 0.00 in   Overcast
10:53 PM 32.0 °F - 28.0 °F 85% 29.86 in 10.0 mi Calm Calm - N/A   Overcast
11:53 PM 32.0 °F 27.5 °F 28.0 °F 85% 29.85 in 10.0 mi ESE 4.6 mph - N/A   Overcast