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Thursday, December 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 24 °F 37 °F  
Max Temperature 43 °F 53 °F 71 °F (1972)
Min Temperature 5 °F 22 °F -2 °F (1967)
Degree Days  
Heating Degree Days 41 28  
Month to date heating degree days 498 541  
Since 1 July heating degree days 1319 1442  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1161 1104  
Moisture  
Dew Point -2 °F    
Average Humidity 41    
Maximum Humidity 69    
Minimum Humidity 13    
Precipitation  
Precipitation 0.00 in 0.02 in 0.51 in (2010)
Month to date precipitation 0.25 0.42  
Year to date precipitation 2.96 4.80  
Snow  
Snow 0.00 in 0.00 in 1.30 in (2010)
Month to date snowfall T 0.6  
Since 1 July snowfall T 1.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.31 in    
Wind  
Wind Speed 5 mph (NNW)    
Max Wind Speed 17 mph    
Max Gust Speed 22 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 20, 2012 Rise Set
Actual Time 7:03 AM PST 4:38 PM PST
Civil Twilight 6:34 AM PST 5:08 PM PST
Nautical Twilight 6:01 AM PST 5:40 PM PST
Astronomical Twilight 5:29 AM PST 6:12 PM PST
Moon 11:53 AM PST (12/20) 12:02 AM PST (12/20)
Length of Visible Light 10h 33m
Length of Day
9h 35m
First Quarter, 56% of the Moon is Illuminated
Dec 20
First Quarter
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
12:56 AM 12.0 °F 1.5 °F -2.0 °F 53% 30.36 in 10.0 mi NNW 6.9 mph - N/A   Clear
1:56 AM 9.0 °F -2.2 °F -2.9 °F 59% 30.37 in 10.0 mi NW 6.9 mph - N/A   Clear
2:56 AM 9.0 °F -2.2 °F -2.9 °F 59% 30.36 in 10.0 mi NW 6.9 mph - N/A   Clear
3:56 AM 9.0 °F -2.2 °F -2.0 °F 61% 30.35 in 10.0 mi NNW 6.9 mph - N/A   Clear
4:56 AM 7.0 °F -3.3 °F -2.9 °F 64% 30.38 in 10.0 mi North 5.8 mph - N/A   Clear
5:56 AM 7.0 °F -4.5 °F -2.9 °F 64% 30.40 in 10.0 mi North 6.9 mph - N/A   Clear
6:56 AM 6.1 °F -4.3 °F -5.1 °F 60% 30.41 in 10.0 mi NE 5.8 mph - N/A   Clear
7:56 AM 12.9 °F 5.2 °F 1.0 °F 59% 30.42 in 10.0 mi NW 4.6 mph - N/A   Clear
8:56 AM 21.9 °F - -0.9 °F 37% 30.41 in 10.0 mi Calm Calm - N/A   Clear
9:56 AM 28.9 °F - 1.0 °F 30% 30.40 in 10.0 mi Calm Calm - N/A   Clear
10:56 AM 33.1 °F - -0.9 °F 23% 30.35 in 10.0 mi Calm Calm - N/A   Clear
11:56 AM 36.0 °F 32.1 °F -2.0 °F 20% 30.29 in 10.0 mi SSE 4.6 mph - N/A   Clear
12:56 PM 39.0 °F 36.8 °F -2.0 °F 18% 30.24 in 10.0 mi Variable 3.5 mph - N/A   Clear
1:56 PM 42.1 °F 35.7 °F -5.1 °F 14% 30.22 in 10.0 mi South 11.5 mph - N/A   Clear
2:56 PM 42.1 °F 35.7 °F -4.0 °F 14% 30.19 in 10.0 mi South 11.5 mph - N/A   Clear
3:56 PM 39.9 °F 32.9 °F -2.9 °F 16% 30.19 in 10.0 mi South 11.5 mph 19.6 mph N/A   Clear
4:56 PM 33.1 °F 27.7 °F -2.9 °F 21% 30.23 in 10.0 mi South 5.8 mph - N/A   Clear
5:56 PM 32.0 °F 28.7 °F -2.9 °F 22% 30.24 in 10.0 mi SSE 3.5 mph - N/A   Clear
6:56 PM 23.0 °F - -0.9 °F 35% 30.29 in 10.0 mi North - - N/A   Clear
7:56 PM 19.0 °F 12.3 °F -0.9 °F 42% 30.29 in 10.0 mi NNW 4.6 mph - N/A   Clear
8:56 PM 14.0 °F 6.5 °F -2.0 °F 49% 30.28 in 10.0 mi NNW 4.6 mph - N/A   Clear
9:56 PM 12.9 °F 5.2 °F -2.0 °F 51% 30.26 in 10.0 mi NW 4.6 mph - N/A   Clear
10:56 PM 12.9 °F 5.2 °F -0.9 °F 54% 30.25 in 10.0 mi NNW 4.6 mph - N/A   Clear
11:56 PM 10.0 °F 3.6 °F -2.0 °F 58% 30.23 in 10.0 mi North 3.5 mph - N/A   Clear