Portland, OR

11:23 AM PST on January 22, 2018 (GMT -0800)
Portland International

Weather History for KPDX - December, 2012

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Friday, December 7, 2012

  Actual Average Record
Temperature  
Mean Temperature 46 °F 41 °F  
Max Temperature 49 °F 47 °F 63 °F (2015)
Min Temperature 42 °F 36 °F 15 °F (2013)
Degree Days  
Heating Degree Days 19 24  
Month to date heating degree days 119 162  
Since 1 July heating degree days 928 1131  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 436 424  
Moisture  
Dew Point 41 °F    
Average Humidity 87    
Maximum Humidity 93    
Minimum Humidity 80    
Precipitation  
Precipitation 0.05 in 0.19 in 2.67 in (2015)
Month to date precipitation 2.23 1.38  
Year to date precipitation 45.11 31.92  
Snow  
Snow 0.00 in - 1.80 in (1956)
Month to date snowfall  
Since 1 July snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.17 in    
Wind  
Wind Speed 9 mph (SW)    
Max Wind Speed 18 mph    
Max Gust Speed 23 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Dec. 07, 2012 Rise Set
Actual Time 7:37 AM PST 4:26 PM PST
Civil Twilight 7:03 AM PST 5:00 PM PST
Nautical Twilight 6:26 AM PST 5:38 PM PST
Astronomical Twilight 5:50 AM PST 6:14 PM PST
Moon 12:46 AM PST (12/7) 12:41 PM PST (12/7)
Length of Visible Light 9h 57m
Length of Day
8h 49m
Last Quarter, 37% of the Moon is Illuminated
Dec 7
Last Quarter
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
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 46.0 °F 41.0 °F 43.0 °F 89% 30.20 in 10.0 mi SSW 10.4 mph - 0.00 in   Overcast
1:53 AM 45.0 °F 40.1 °F 42.1 °F 90% 30.19 in 10.0 mi SSW 9.2 mph - N/A   Overcast
2:31 AM 46.4 °F 44.3 °F 42.8 °F 87% 30.20 in 10.0 mi South 4.6 mph - N/A   Overcast
2:53 AM 46.0 °F 43.1 °F 43.0 °F 89% 30.19 in 10.0 mi SSW 5.8 mph - N/A   Overcast
3:53 AM 46.0 °F 43.9 °F 43.0 °F 89% 30.18 in 10.0 mi South 4.6 mph 16.1 mph N/A   Overcast
4:17 AM 46.4 °F 43.5 °F 42.8 °F 87% 30.18 in 10.0 mi South 5.8 mph - N/A   Overcast
4:53 AM 46.0 °F 43.1 °F 42.1 °F 86% 30.16 in 10.0 mi South 5.8 mph - N/A   Overcast
5:10 AM 46.4 °F 42.4 °F 42.8 °F 87% 30.16 in 10.0 mi SE 8.1 mph - N/A   Overcast
5:37 AM 46.4 °F 40.1 °F 42.8 °F 87% 30.15 in 10.0 mi SSW 15.0 mph - N/A   Mostly Cloudy
5:53 AM 46.0 °F 39.3 °F 42.1 °F 86% 30.14 in 10.0 mi SSW 16.1 mph 21.9 mph N/A   Mostly Cloudy
6:44 AM 46.4 °F 40.1 °F 42.8 °F 87% 30.15 in 10.0 mi South 15.0 mph - N/A   Overcast
6:53 AM 46.0 °F 39.6 °F 42.1 °F 86% 30.14 in 10.0 mi South 15.0 mph - N/A   Overcast
7:45 AM 46.4 °F 41.9 °F 42.8 °F 87% 30.15 in 10.0 mi SW 9.2 mph - N/A   Overcast
7:53 AM 46.0 °F 40.6 °F 42.1 °F 86% 30.15 in 10.0 mi SW 11.5 mph - N/A   Overcast
8:53 AM 46.0 °F 39.9 °F 42.1 °F 86% 30.14 in 10.0 mi SSW 13.8 mph - N/A   Overcast
9:53 AM 46.9 °F - 42.1 °F 83% 30.13 in 10.0 mi SSW 10.4 mph - N/A   Overcast
10:53 AM 48.0 °F - 43.0 °F 83% 30.13 in 10.0 mi SSW 12.7 mph 20.7 mph N/A   Overcast
11:53 AM 46.9 °F - 44.1 °F 90% 30.12 in 10.0 mi SSW 13.8 mph - 0.00 in   Overcast
12:53 PM 48.0 °F - 44.1 °F 86% 30.11 in 9.0 mi SSW 10.4 mph - 0.01 in Rain Light Rain
1:53 PM 48.9 °F - 45.0 °F 86% 30.11 in 10.0 mi SW 10.4 mph - 0.00 in Rain Light Rain
2:53 PM 48.9 °F - 45.0 °F 86% 30.12 in 9.0 mi WSW 8.1 mph - 0.00 in Rain Light Rain
3:53 PM 48.0 °F - 42.1 °F 80% 30.14 in 10.0 mi West 10.4 mph - 0.04 in   Overcast
4:53 PM 46.9 °F - 39.9 °F 77% 30.15 in 10.0 mi NNW 10.4 mph 17.3 mph 0.00 in Rain Light Rain
5:20 PM 44.6 °F 40.7 °F 39.2 °F 81% 30.17 in 10.0 mi North 6.9 mph - 0.00 in   Overcast
5:53 PM 45.0 °F 41.2 °F 39.0 °F 80% 30.18 in 10.0 mi WNW 6.9 mph - 0.00 in   Overcast
6:08 PM 44.6 °F 39.7 °F 39.2 °F 81% 30.18 in 10.0 mi WNW 9.2 mph - N/A   Overcast
6:53 PM 45.0 °F 40.6 °F 39.0 °F 80% 30.20 in 10.0 mi NW 8.1 mph - N/A   Overcast
7:53 PM 43.0 °F 39.5 °F 37.9 °F 82% 30.21 in 10.0 mi West 5.8 mph - N/A   Overcast
8:53 PM 43.0 °F 40.3 °F 37.9 °F 82% 30.22 in 10.0 mi West 4.6 mph - N/A   Overcast
9:53 PM 43.0 °F 41.3 °F 37.9 °F 82% 30.23 in 10.0 mi West 3.5 mph - N/A   Overcast
10:53 PM 43.0 °F 40.3 °F 37.9 °F 82% 30.23 in 10.0 mi West 4.6 mph - N/A   Overcast
11:53 PM 43.0 °F - 37.0 °F 80% 30.24 in 10.0 mi Calm Calm - N/A   Overcast