Weather History for KPDX - December, 2012

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Friday, December 14, 2012

  Actual Average Record
Temperature  
Mean Temperature 40 °F 40 °F  
Max Temperature 45 °F 45 °F 60 °F (2002)
Min Temperature 35 °F 35 °F 23 °F (1972)
Degree Days  
Heating Degree Days 25 25  
Month to date heating degree days 265 333  
Since 1 July heating degree days 1074 1302  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 436 424  
Moisture  
Dew Point 38 °F    
Average Humidity 92    
Maximum Humidity 100    
Minimum Humidity 83    
Precipitation  
Precipitation 0.32 in 0.18 in 1.35 in (1946)
Month to date precipitation 3.18 2.62  
Year to date precipitation 46.06 33.16  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 5 mph (SE)    
Max Wind Speed 10 mph    
Max Gust Speed 12 mph    
Visibility 8 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 14, 2012 Rise Set
Actual Time 7:43 AM PST 4:27 PM PST
Civil Twilight 7:09 AM PST 5:01 PM PST
Nautical Twilight 6:31 AM PST 5:39 PM PST
Astronomical Twilight 5:55 AM PST 6:15 PM PST
Moon 8:50 AM PST (12/14) 6:29 PM PST (12/14)
Length of Visible Light 9h 51m
Length of Day
8h 43m
Waxing Crescent, 3% of the Moon is Illuminated
Dec 14
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:20 AM 39.2 °F 34.2 °F 37.4 °F 93% 29.86 in 10.0 mi SE 6.9 mph - N/A   Overcast
12:42 AM 39.2 °F 35.0 °F 37.4 °F 93% 29.86 in 10.0 mi SE 5.8 mph - 0.00 in Rain Light Rain
12:53 AM 39.9 °F 35.8 °F 37.0 °F 89% 29.86 in 9.0 mi SSE 5.8 mph - 0.00 in Rain Light Rain
1:42 AM 39.2 °F 35.9 °F 37.4 °F 93% 29.86 in 7.0 mi SE 4.6 mph - 0.02 in Rain Light Rain
1:53 AM 39.0 °F 35.7 °F 37.9 °F 96% 29.86 in 6.0 mi SE 4.6 mph - 0.02 in Rain Light Rain
2:53 AM 39.0 °F 36.8 °F 37.9 °F 96% 29.86 in 5.0 mi SE 3.5 mph - 0.05 in Rain Light Rain
3:53 AM 39.0 °F 35.7 °F 37.9 °F 96% 29.85 in 5.0 mi ESE 4.6 mph - 0.07 in Rain Light Rain
4:12 AM 39.2 °F 35.9 °F 39.2 °F 100% 29.85 in 5.0 mi ESE 4.6 mph - 0.02 in Rain Light Rain
4:53 AM 39.9 °F 36.7 °F 37.9 °F 93% 29.85 in 7.0 mi SSE 4.6 mph - 0.07 in Rain Light Rain
5:43 AM 39.2 °F 35.0 °F 37.4 °F 93% 29.84 in 8.0 mi South 5.8 mph - 0.04 in Rain Light Rain
5:53 AM 39.9 °F 36.7 °F 37.0 °F 89% 29.85 in 9.0 mi South 4.6 mph - 0.05 in Rain Light Rain
6:53 AM 39.9 °F 36.7 °F 37.9 °F 93% 29.85 in 7.0 mi South 4.6 mph - 0.01 in Rain Light Rain
7:38 AM 39.2 °F 37.0 °F 37.4 °F 93% 29.86 in 2.5 mi SE 3.5 mph - 0.02 in Rain Light Rain
7:53 AM 39.0 °F 35.7 °F 37.9 °F 96% 29.86 in 2.5 mi SE 4.6 mph - 0.03 in Rain Light Rain
8:45 AM 39.2 °F 37.0 °F 39.2 °F 100% 29.87 in 7.0 mi SSE 3.5 mph - 0.00 in   Overcast
8:53 AM 39.9 °F 37.8 °F 39.0 °F 97% 29.87 in 7.0 mi South 3.5 mph - 0.00 in   Overcast
9:53 AM 41.0 °F 38.0 °F 39.0 °F 93% 29.89 in 10.0 mi SSW 4.6 mph - N/A   Overcast
10:53 AM 42.1 °F - 39.0 °F 89% 29.90 in 10.0 mi Calm Calm - 0.02 in   Overcast
11:00 AM 42.8 °F 40.1 °F 39.2 °F 87% 29.89 in 8.0 mi SW 4.6 mph - N/A   Overcast
11:49 AM 42.8 °F - 39.2 °F 87% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
11:53 AM 43.0 °F 41.3 °F 39.0 °F 86% 29.91 in 10.0 mi WNW 3.5 mph - N/A   Overcast
12:02 PM 42.8 °F - 39.2 °F 87% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
12:12 PM 42.8 °F - 39.2 °F 87% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
12:53 PM 45.0 °F - 39.9 °F 82% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
1:53 PM 44.1 °F - 37.9 °F 79% 29.93 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
2:53 PM 44.1 °F 41.5 °F 39.9 °F 85% 29.94 in 10.0 mi East 4.6 mph - 0.00 in   Mostly Cloudy
3:23 PM 44.6 °F 42.2 °F 41.0 °F 87% 29.95 in 10.0 mi ESE 4.6 mph - N/A   Overcast
3:49 PM 42.8 °F 39.3 °F 39.2 °F 87% 29.96 in 10.0 mi ESE 5.8 mph - N/A   Mostly Cloudy
3:53 PM 42.1 °F 38.4 °F 39.9 °F 92% 29.96 in 10.0 mi ESE 5.8 mph - N/A   Mostly Cloudy
4:53 PM 39.9 °F 35.8 °F 37.9 °F 93% 29.96 in 10.0 mi ESE 5.8 mph - N/A   Partly Cloudy
5:53 PM 39.0 °F 33.4 °F 37.9 °F 96% 29.96 in 10.0 mi ESE 8.1 mph - N/A   Clear
6:53 PM 37.9 °F 32.7 °F 37.0 °F 97% 29.97 in 10.0 mi ESE 6.9 mph - N/A   Clear
7:53 PM 37.0 °F 34.5 °F 36.0 °F 96% 29.98 in 10.0 mi SE 3.5 mph - N/A   Clear
8:53 PM 37.0 °F 31.0 °F 35.1 °F 93% 29.98 in 10.0 mi ESE 8.1 mph - N/A   Clear
9:53 PM 37.0 °F 31.6 °F 35.1 °F 93% 29.99 in 10.0 mi ESE 6.9 mph - N/A   Partly Cloudy
10:53 PM 37.0 °F 30.4 °F 36.0 °F 96% 29.99 in 10.0 mi ESE 9.2 mph - N/A   Overcast
11:53 PM 37.0 °F 31.0 °F 36.0 °F 96% 29.97 in 10.0 mi ESE 8.1 mph - N/A   Mostly Cloudy