Weather History for KPDX - December, 2013

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Wednesday, December 11, 2013

  Actual Average Record
Temperature  
Mean Temperature 34 °F 40 °F  
Max Temperature 41 °F 46 °F 64 °F (2014)
Min Temperature 27 °F 35 °F 14 °F (2009)
Degree Days  
Heating Degree Days 31 24  
Month to date heating degree days 371 258  
Since 1 July heating degree days 1382 1227  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 539 424  
Moisture  
Dew Point 29 °F    
Average Humidity 85    
Maximum Humidity 100    
Minimum Humidity 69    
Precipitation  
Precipitation T in 0.17 in 1.30 in (1969)
Month to date precipitation 0.91 2.09  
Year to date precipitation 26.01 32.63  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.34 in    
Wind  
Wind Speed 3 mph (WNW)    
Max Wind Speed 14 mph    
Max Gust Speed 17 mph    
Visibility 3 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 11, 2013 Rise Set
Actual Time 7:41 AM PST 4:26 PM PST
Civil Twilight 7:06 AM PST 5:00 PM PST
Nautical Twilight 6:29 AM PST 5:38 PM PST
Astronomical Twilight 5:53 AM PST 6:14 PM PST
Moon 1:15 PM PST (12/11) 1:54 AM PST (12/11)
Length of Visible Light 9h 53m
Length of Day
8h 45m
Waxing Gibbous, 72% of the Moon is Illuminated
Dec 11
Waxing Gibbous
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:34 AM 28.0 °F 24.2 °F 27.0 °F 96% 30.42 in 0.1 mi SSW 3.5 mph - N/A Fog Light Freezing Fog
12:53 AM 27.0 °F - 27.0 °F 100% 30.42 in 0.1 mi Calm Calm - N/A Fog Light Freezing Fog
1:53 AM 28.0 °F - 27.0 °F 96% 30.41 in 0.1 mi Calm Calm - N/A Fog Light Freezing Fog
2:05 AM 28.0 °F 24.2 °F 28.0 °F 100% 30.41 in 0.1 mi South 3.5 mph - N/A Fog Light Freezing Fog
2:30 AM 28.9 °F - 28.0 °F 96% 30.41 in 0.1 mi Calm Calm - N/A Fog Light Freezing Fog
2:53 AM 30.0 °F - 30.0 °F 100% 30.40 in 0.1 mi Calm Calm - N/A Fog Light Freezing Fog
3:53 AM 30.0 °F 26.5 °F 28.9 °F 96% 30.39 in 0.1 mi WSW 3.5 mph - N/A Fog Light Freezing Fog
4:53 AM 30.0 °F 26.5 °F 28.9 °F 96% 30.37 in 0.1 mi WNW 3.5 mph - N/A Fog Light Freezing Fog
5:10 AM 30.0 °F 26.5 °F 28.9 °F 96% 30.36 in 0.1 mi NNW 3.5 mph - N/A Fog Light Freezing Fog
5:39 AM 28.9 °F 21.9 °F 28.0 °F 96% 30.37 in 0.1 mi NW 6.9 mph - N/A Fog Light Freezing Fog
5:50 AM 28.4 °F 22.2 °F 28.4 °F 100% 30.37 in 0.1 mi NW 5.8 mph - N/A Fog Light Freezing Fog
5:53 AM 28.9 °F 23.9 °F 28.0 °F 96% 30.38 in 0.1 mi NW 4.6 mph - N/A Fog Light Freezing Fog
6:53 AM 28.9 °F - 28.0 °F 96% 30.38 in 0.1 mi Calm Calm - N/A Fog Light Freezing Fog
7:53 AM 28.0 °F - 27.0 °F 96% 30.37 in 0.1 mi Calm Calm - N/A Fog Light Freezing Fog
8:14 AM 28.0 °F 22.8 °F 28.0 °F 100% 30.38 in 0.1 mi West 4.6 mph - N/A Fog Light Freezing Fog
8:25 AM 28.9 °F - 28.0 °F 96% 30.37 in 0.1 mi Calm Calm - N/A Fog Light Freezing Fog
8:35 AM 28.9 °F 23.9 °F 28.0 °F 96% 30.37 in 0.1 mi WSW 4.6 mph - N/A Fog Light Freezing Fog
8:53 AM 28.9 °F 25.2 °F 28.0 °F 96% 30.38 in 0.1 mi West 3.5 mph - N/A Fog Light Freezing Fog
9:00 AM 28.9 °F - 28.0 °F 96% 30.37 in 0.1 mi Calm Calm - N/A Fog Light Freezing Fog
9:53 AM 30.0 °F - 28.9 °F 96% 30.39 in 0.2 mi Calm Calm - N/A   Overcast
9:57 AM 30.0 °F - 28.0 °F 92% 30.38 in 0.8 mi Calm Calm - N/A   Overcast
10:53 AM 30.0 °F 26.5 °F 28.9 °F 96% 30.38 in 0.8 mi NW 3.5 mph - N/A   Mostly Cloudy
11:09 AM 30.0 °F 26.5 °F 28.9 °F 96% 30.37 in 1.5 mi NW 3.5 mph - N/A   Mostly Cloudy
11:47 AM 30.2 °F 23.4 °F 28.4 °F 93% 30.36 in 1.5 mi WNW 6.9 mph - N/A   Mostly Cloudy
11:53 AM 30.9 °F 25.2 °F 30.0 °F 96% 30.36 in 2.0 mi West 5.8 mph - N/A   Mostly Cloudy
12:32 PM 32.0 °F 28.7 °F 30.9 °F 96% 30.33 in 3.0 mi West 3.5 mph - N/A   Partly Cloudy
12:53 PM 32.0 °F 28.7 °F 30.0 °F 92% 30.32 in 6.0 mi West 3.5 mph - N/A   Mostly Cloudy
1:53 PM 37.0 °F 34.5 °F 28.9 °F 73% 30.30 in 10.0 mi NW 3.5 mph - N/A   Mostly Cloudy
2:53 PM 39.0 °F 33.4 °F 32.0 °F 76% 30.29 in 9.0 mi NNE 8.1 mph - N/A   Mostly Cloudy
3:53 PM 37.9 °F - 30.9 °F 76% 30.29 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
4:53 PM 34.0 °F - 30.0 °F 85% 30.27 in 9.0 mi Calm Calm - N/A   Partly Cloudy
5:53 PM 32.0 °F 27.5 °F 30.0 °F 92% 30.26 in 7.0 mi NW 4.6 mph - N/A   Clear
6:53 PM 30.9 °F - 28.0 °F 89% 30.25 in 7.0 mi Calm Calm - N/A   Clear
7:53 PM 30.0 °F - 28.0 °F 92% 30.25 in 7.0 mi Calm Calm - N/A   Clear
8:53 PM 32.0 °F - 28.9 °F 88% 30.24 in 8.0 mi Calm Calm - N/A   Clear
9:53 PM 33.1 °F 26.1 °F 28.0 °F 82% 30.23 in 10.0 mi ESE 8.1 mph - N/A   Partly Cloudy
10:53 PM 33.1 °F 24.4 °F 25.0 °F 72% 30.23 in 10.0 mi ESE 11.5 mph - N/A   Partly Cloudy
11:53 PM 32.0 °F 27.5 °F 27.0 °F 82% 30.22 in 10.0 mi ESE 4.6 mph - N/A   Partly Cloudy