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Monday, December 19, 2011

  Actual Average Record
Temperature  
Mean Temperature 27 °F 26 °F  
Max Temperature 28 °F 32 °F 48 °F (1957)
Min Temperature 25 °F 20 °F -7 °F (1984)
Degree Days  
Heating Degree Days 38 39  
Month to date heating degree days 731 701  
Since 1 July heating degree days 2084 2120  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 621 772  
Moisture  
Dew Point 25 °F    
Average Humidity 93    
Maximum Humidity 100    
Minimum Humidity 85    
Precipitation  
Precipitation 0.00 in 0.04 in 0.49 in (1981)
Month to date precipitation 0.01 0.77  
Year to date precipitation 4.67 7.38  
Sea Level Pressure  
Sea Level Pressure 30.44 in    
Wind  
Wind Speed 3 mph (NE)    
Max Wind Speed 9 mph    
Max Gust Speed 10 mph    
Visibility 6 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 19, 2011 Rise Set
Actual Time 7:41 AM PST 4:09 PM PST
Civil Twilight 7:05 AM PST 4:45 PM PST
Nautical Twilight 6:26 AM PST 5:24 PM PST
Astronomical Twilight 5:48 AM PST 6:01 PM PST
Moon 1:42 AM PST (12/19) 12:23 PM PST (12/19)
Length of Visible Light 9h 39m
Length of Day
8h 28m
Waning Crescent, 30% of the Moon is Illuminated
Dec 19
Waning Crescent
Dec 24
New
Dec 31
First Quarter
Jan 8
Full
Jan 16
Last Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 26.1 °F - 25.0 °F 96% 30.43 in 0.2 mi Calm Calm - N/A Fog Light Freezing Fog
1:32 AM 26.6 °F 21.2 °F 24.8 °F 93% 30.38 in 0.5 mi SSW 4.6 mph - N/A Fog Light Freezing Fog
2:53 AM 27.0 °F - 24.1 °F 89% 30.44 in 0.5 mi Calm Calm - N/A Fog Light Freezing Fog
3:53 AM 26.1 °F 19.4 °F 24.1 °F 92% 30.46 in 0.8 mi North 5.8 mph - N/A   Mist
4:53 AM 25.0 °F 16.3 °F 23.0 °F 92% 30.46 in 0.5 mi NNW 8.1 mph - N/A Fog Light Freezing Fog
5:53 AM 25.0 °F 20.7 °F 23.0 °F 92% 30.47 in 0.8 mi NE 3.5 mph - N/A   Mist
6:07 AM 24.8 °F 20.5 °F 23.0 °F 93% 30.42 in 1.0 mi NNE 3.5 mph - N/A   Mist
6:53 AM 26.1 °F 19.4 °F 24.1 °F 92% 30.48 in 1.0 mi North 5.8 mph - N/A   Overcast
7:35 AM 24.8 °F 20.5 °F 24.8 °F 100% 30.42 in 2.5 mi NNE 3.5 mph - N/A   Overcast
7:46 AM 26.6 °F 22.6 °F 24.8 °F 93% 30.43 in 3.0 mi NNE 3.5 mph - N/A   Overcast
7:53 AM 25.0 °F 19.3 °F 24.1 °F 96% 30.48 in 2.5 mi NNE 4.6 mph - N/A   Overcast
8:05 AM 24.8 °F - 24.8 °F 100% 30.43 in 5.0 mi Calm Calm - N/A   Overcast
8:53 AM 26.1 °F - 24.1 °F 92% 30.49 in 2.5 mi Calm Calm - N/A   Overcast
9:17 AM 26.6 °F 20.0 °F 24.8 °F 93% 30.44 in 3.0 mi SSE 5.8 mph - N/A   Overcast
9:45 AM 26.6 °F 20.0 °F 24.8 °F 93% 30.45 in 2.5 mi SSE 5.8 mph - N/A   Overcast
10:27 AM 26.6 °F 21.2 °F 24.8 °F 93% 30.45 in 2.0 mi SSE 4.6 mph - N/A   Overcast
10:42 AM 26.6 °F 22.6 °F 24.8 °F 93% 30.45 in 3.0 mi SSE 3.5 mph - N/A   Overcast
11:53 AM 27.0 °F 23.0 °F 25.0 °F 92% 30.48 in 10.0 mi ESE 3.5 mph - N/A   Overcast
12:53 PM 28.0 °F - 26.1 °F 92% 30.47 in 9.0 mi Calm Calm - N/A   Overcast
1:53 PM 28.0 °F 24.2 °F 25.0 °F 88% 30.45 in 10.0 mi East 3.5 mph - N/A   Overcast
2:38 PM 26.6 °F - 24.8 °F 93% 30.39 in 10.0 mi Calm Calm - N/A   Overcast
2:53 PM 27.0 °F 23.0 °F 25.0 °F 92% 30.45 in 10.0 mi NE 3.5 mph - N/A   Overcast
3:43 PM 28.4 °F 22.2 °F 26.6 °F 93% 30.40 in 10.0 mi North 5.8 mph - N/A   Overcast
3:53 PM 27.0 °F 23.0 °F 25.0 °F 92% 30.44 in 10.0 mi Variable 3.5 mph - N/A   Overcast
4:53 PM 27.0 °F 20.5 °F 26.1 °F 96% 30.44 in 10.0 mi North 5.8 mph - N/A   Overcast
5:39 PM 26.6 °F - 24.8 °F 93% 30.39 in 10.0 mi Calm Calm - N/A   Overcast
5:53 PM 27.0 °F 21.6 °F 25.0 °F 92% 30.45 in 10.0 mi NNW 4.6 mph - N/A   Overcast
6:53 PM 27.0 °F - 26.1 °F 96% 30.44 in 8.0 mi Calm Calm - N/A   Overcast
7:53 PM 28.0 °F - 27.0 °F 96% 30.43 in 8.0 mi Calm Calm - N/A   Overcast
8:53 PM 27.0 °F 21.6 °F 26.1 °F 96% 30.41 in 10.0 mi SSW 4.6 mph - N/A   Overcast
9:53 PM 27.0 °F 21.6 °F 26.1 °F 96% 30.41 in 10.0 mi SW 4.6 mph - N/A   Overcast
10:53 PM 27.0 °F 21.6 °F 26.1 °F 96% 30.39 in 10.0 mi SW 4.6 mph - N/A   Overcast
11:53 PM 26.1 °F 19.4 °F 25.0 °F 96% 30.39 in 10.0 mi SSW 5.8 mph - N/A   Overcast