Weather History for Portland, OR

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Wednesday, December 7, 2011

  Actual Average Record
Temperature  
Mean Temperature 38 °F 41 °F  
Max Temperature 41 °F 47 °F 58 °F (1970)
Min Temperature 34 °F 36 °F 15 °F (2013)
Degree Days  
Heating Degree Days 27 24  
Month to date heating degree days 196 162  
Since 1 July heating degree days 1129 1131  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 362 424  
Moisture  
Dew Point 34 °F    
Average Humidity 90    
Maximum Humidity 100    
Minimum Humidity 79    
Precipitation  
Precipitation 0.00 in 0.19 in 0.86 in (1985)
Month to date precipitation T 1.38  
Year to date precipitation 34.59 31.92  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.44 in    
Wind  
Wind Speed 2 mph (East)    
Max Wind Speed 8 mph    
Max Gust Speed 10 mph    
Visibility 5 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 07, 2011 Rise Set
Actual Time 7:36 AM PST 4:26 PM PST
Civil Twilight 7:02 AM PST 5:00 PM PST
Nautical Twilight 6:25 AM PST 5:38 PM PST
Astronomical Twilight 5:49 AM PST 6:14 PM PST
Moon 2:33 PM PST (12/7) 4:53 AM PST (12/7)
Length of Visible Light 9h 57m
Length of Day
8h 49m
Waxing Gibbous, 93% of the Moon is Illuminated
Dec 7
Waxing Gibbous
Dec 10
Full
Dec 17
Last Quarter
Dec 24
New
Dec 31
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 33.8 °F 29.6 °F 33.8 °F 100% 30.49 in 0.2 mi SE 4.6 mph - N/A   Overcast
1:53 AM 34.0 °F 29.8 °F 33.1 °F 96% 30.48 in 0.2 mi SE 4.6 mph - N/A   Overcast
2:53 AM 34.0 °F 31.0 °F 33.1 °F 96% 30.49 in 0.2 mi ESE 3.5 mph - N/A   Overcast
3:53 AM 33.8 °F 30.8 °F 33.8 °F 100% 30.47 in 0.2 mi ESE 3.5 mph - N/A   Overcast
4:09 AM 33.8 °F 30.8 °F 33.8 °F 100% 30.47 in 0.8 mi ESE 3.5 mph - N/A   Overcast
4:30 AM 33.8 °F 29.6 °F 33.8 °F 100% 30.47 in 1.5 mi ESE 4.6 mph - N/A   Overcast
4:53 AM 33.8 °F - 33.8 °F 100% 30.47 in 1.5 mi Calm Calm - N/A   Overcast
5:13 AM 33.8 °F - 33.8 °F 100% 30.47 in 2.0 mi Calm Calm - N/A   Overcast
5:22 AM 35.6 °F - 33.8 °F 93% 30.47 in 6.0 mi Calm Calm - N/A   Overcast
5:53 AM 35.1 °F - 33.1 °F 92% 30.47 in 3.0 mi Calm Calm - N/A   Overcast
6:53 AM 35.1 °F - 33.1 °F 92% 30.46 in 3.0 mi Calm Calm - N/A   Overcast
7:00 AM 35.6 °F - 33.8 °F 93% 30.46 in 3.0 mi Calm Calm - N/A   Overcast
7:11 AM 35.6 °F 32.8 °F 33.8 °F 93% 30.46 in 1.5 mi East 3.5 mph - N/A   Overcast
7:53 AM 35.1 °F 32.2 °F 33.1 °F 92% 30.46 in 1.5 mi ESE 3.5 mph - N/A   Overcast
8:53 AM 35.1 °F - 33.1 °F 92% 30.47 in 1.5 mi Calm Calm - N/A   Overcast
9:46 AM 35.6 °F - 33.8 °F 93% 30.47 in 1.5 mi Calm Calm - N/A   Overcast
9:53 AM 36.0 °F - 33.1 °F 89% 30.47 in 2.0 mi Calm Calm - N/A   Overcast
10:53 AM 37.0 °F 34.5 °F 34.0 °F 89% 30.47 in 2.0 mi East 3.5 mph - N/A   Overcast
11:47 AM 37.4 °F - 33.8 °F 87% 30.45 in 5.0 mi Calm Calm - N/A   Overcast
11:53 AM 37.9 °F - 34.0 °F 86% 30.45 in 5.0 mi Calm Calm - N/A   Overcast
12:06 PM 39.2 °F - 33.8 °F 81% 30.44 in 5.0 mi Calm Calm - N/A   Haze
12:29 PM 39.2 °F - 33.8 °F 81% 30.44 in 5.0 mi Calm Calm - N/A   Haze
12:53 PM 39.0 °F - 35.1 °F 86% 30.43 in 4.0 mi Calm Calm - N/A   Overcast
1:53 PM 39.0 °F - 35.1 °F 86% 30.41 in 4.0 mi Calm Calm - N/A   Overcast
2:49 PM 39.2 °F 37.0 °F 35.6 °F 87% 30.41 in 6.0 mi North 3.5 mph - N/A   Haze
2:53 PM 39.9 °F - 35.1 °F 83% 30.41 in 6.0 mi Calm Calm - N/A   Haze
3:07 PM 39.2 °F - 35.6 °F 87% 30.41 in 9.0 mi Calm Calm - N/A   Overcast
3:32 PM 39.2 °F - 35.6 °F 87% 30.41 in 6.0 mi Calm Calm - N/A   Haze
3:53 PM 39.9 °F - 35.1 °F 83% 30.41 in 9.0 mi Calm Calm - N/A   Overcast
4:53 PM 39.9 °F - 35.1 °F 83% 30.40 in 10.0 mi Calm Calm - N/A   Overcast
5:53 PM 39.9 °F 36.7 °F 35.1 °F 83% 30.40 in 9.0 mi East 4.6 mph - N/A   Overcast
6:53 PM 39.9 °F 35.8 °F 36.0 °F 86% 30.40 in 9.0 mi East 5.8 mph - N/A   Overcast
7:53 PM 39.0 °F 34.8 °F 34.0 °F 82% 30.40 in 10.0 mi East 5.8 mph - N/A   Overcast
8:30 PM 39.2 °F 35.9 °F 33.8 °F 81% 30.40 in 10.0 mi NE 4.6 mph - N/A   Overcast
8:53 PM 39.0 °F 34.0 °F 34.0 °F 82% 30.40 in 10.0 mi ENE 6.9 mph - N/A   Overcast
9:53 PM 39.9 °F 37.8 °F 34.0 °F 79% 30.41 in 10.0 mi North 3.5 mph - N/A   Overcast
10:53 PM 39.0 °F 36.8 °F 34.0 °F 82% 30.42 in 10.0 mi North 3.5 mph - N/A   Overcast
11:53 PM 39.0 °F 36.8 °F 34.0 °F 82% 30.42 in 10.0 mi NW 3.5 mph - N/A   Mostly Cloudy