Portland, OR

3:54 PM PDT on October 18, 2017 (GMT -0700)
Portland International

Weather History for KPDX - December, 2012

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Tuesday, December 4, 2012

  Actual Average Record
Temperature  
Mean Temperature 52 °F 42 °F  
Max Temperature 57 °F 47 °F 64 °F (1945)
Min Temperature 47 °F 37 °F 22 °F (2013)
Degree Days  
Heating Degree Days 13 23  
Month to date heating degree days 58 91  
Since 1 July heating degree days 867 1060  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 436 424  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 93    
Maximum Humidity 100    
Minimum Humidity 86    
Precipitation  
Precipitation 1.02 in 0.20 in 1.56 in (1966)
Month to date precipitation 2.15 0.81  
Year to date precipitation 45.03 31.35  
Snow  
Snow 0.00 in - - ()
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.79 in    
Wind  
Wind Speed 6 mph (SSE)    
Max Wind Speed 17 mph    
Max Gust Speed 22 mph    
Visibility 6 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 04, 2012 Rise Set
Actual Time 7:34 AM PST 4:27 PM PST
Civil Twilight 7:00 AM PST 5:00 PM PST
Nautical Twilight 6:23 AM PST 5:38 PM PST
Astronomical Twilight 5:47 AM PST 6:14 PM PST
Moon 10:32 PM PST (12/4) 11:20 AM PST (12/4)
Length of Visible Light 10h 00m
Length of Day
8h 52m
Waning Gibbous, 68% of the Moon is Illuminated
Dec 4
Waning Gibbous
Dec 6
Last Quarter
Dec 13
New
Dec 19
First Quarter
Dec 28
Full

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 48.0 °F - 46.0 °F 93% 29.63 in 7.0 mi ESE 12.7 mph - 0.18 in Rain Rain
1:33 AM 46.4 °F 40.7 °F 46.4 °F 100% 29.63 in 4.0 mi ESE 12.7 mph - 0.05 in Rain Light Rain
1:53 AM 48.0 °F - 46.9 °F 96% 29.63 in 4.0 mi ESE 12.7 mph - 0.08 in Rain Rain
2:53 AM 51.1 °F - 48.9 °F 92% 29.65 in 9.0 mi South 10.4 mph 21.9 mph 0.03 in Rain Light Rain
3:16 AM 51.8 °F - 50.0 °F 94% 29.67 in 10.0 mi South 12.7 mph 17.3 mph 0.00 in   Overcast
3:53 AM 53.1 °F - 50.0 °F 89% 29.68 in 10.0 mi SSE 6.9 mph - 0.00 in   Overcast
4:53 AM 53.1 °F - 51.1 °F 93% 29.71 in 10.0 mi SE 8.1 mph - 0.00 in   Light Drizzle
5:18 AM 53.6 °F - 51.8 °F 94% 29.72 in 10.0 mi SSE 10.4 mph - 0.00 in   Light Drizzle
5:53 AM 53.1 °F - 51.1 °F 93% 29.73 in 10.0 mi ESE 11.5 mph - 0.01 in   Light Drizzle
6:34 AM 51.8 °F - 50.0 °F 94% 29.75 in 10.0 mi ESE 11.5 mph - 0.00 in   Light Drizzle
6:53 AM 52.0 °F - 50.0 °F 93% 29.75 in 10.0 mi East 8.1 mph - 0.00 in   Light Drizzle
7:06 AM 53.6 °F - 51.8 °F 94% 29.76 in 10.0 mi ESE 8.1 mph - 0.00 in   Light Drizzle
7:53 AM 55.9 °F - 52.0 °F 87% 29.77 in 10.0 mi South 10.4 mph - 0.00 in   Overcast
8:53 AM 55.9 °F - 52.0 °F 87% 29.81 in 10.0 mi South 10.4 mph - N/A   Overcast
9:53 AM 55.4 °F - 53.6 °F 94% 29.83 in 2.0 mi SW 5.8 mph - N/A Rain Rain
10:06 AM 55.4 °F - 53.6 °F 94% 29.84 in 3.0 mi WSW 3.5 mph - 0.01 in Rain Light Rain
10:34 AM 55.4 °F - 53.6 °F 94% 29.83 in 3.0 mi SW 3.5 mph - 0.02 in Rain Light Rain
10:53 AM 55.9 °F - 53.1 °F 90% 29.84 in 7.0 mi SSW 5.8 mph - 0.03 in Rain Light Rain
11:37 AM 55.4 °F - 53.6 °F 94% 29.83 in 5.0 mi SSE 3.5 mph - 0.02 in Rain Light Rain
11:53 AM 55.9 °F - 53.1 °F 90% 29.82 in 9.0 mi SE 3.5 mph - 0.02 in Rain Light Rain
12:24 PM 55.4 °F - 53.6 °F 94% 29.80 in 1.5 mi WSW 3.5 mph - 0.01 in Rain Rain
12:25 PM 55.4 °F - 53.6 °F 94% 29.80 in 1.5 mi WSW 3.5 mph - 0.01 in Rain Rain
12:53 PM 54.0 °F - 53.1 °F 97% 29.81 in 1.5 mi NW 4.6 mph - 0.15 in Rain Light Rain
1:53 PM 54.0 °F - 53.1 °F 97% 29.80 in 1.5 mi Calm Calm - 0.13 in Rain Rain
2:21 PM 53.6 °F - 51.8 °F 94% 29.80 in 3.0 mi Calm Calm - 0.01 in Rain Light Rain
2:53 PM 54.0 °F - 51.1 °F 90% 29.81 in 3.0 mi Calm Calm - 0.03 in Rain Light Rain
3:28 PM 53.6 °F - 51.8 °F 94% 29.82 in 2.0 mi NW 6.9 mph - 0.03 in Rain Rain
3:36 PM 51.8 °F - 48.2 °F 88% 29.82 in 4.0 mi WNW 8.1 mph - 0.04 in Rain Light Rain
3:53 PM 52.0 °F - 48.0 °F 86% 29.82 in 4.0 mi NW 9.2 mph - 0.05 in Rain Light Rain
4:18 PM 51.8 °F - 48.2 °F 88% 29.82 in 10.0 mi NW 6.9 mph - 0.00 in Rain Light Rain
4:53 PM 50.0 °F - 48.9 °F 96% 29.82 in 3.0 mi Calm Calm - 0.08 in Rain Rain
5:27 PM 50.0 °F - 48.2 °F 94% 29.81 in 10.0 mi East 4.6 mph - 0.01 in Rain Light Rain
5:45 PM 50.0 °F - 48.2 °F 94% 29.81 in 10.0 mi ESE 4.6 mph - 0.01 in   Overcast
5:53 PM 50.0 °F - 48.9 °F 96% 29.80 in 10.0 mi ESE 6.9 mph - 0.01 in Rain Light Rain
6:22 PM 50.0 °F - 48.2 °F 94% 29.81 in 2.5 mi ESE 4.6 mph - 0.06 in Rain Rain
6:53 PM 48.9 °F - 48.9 °F 100% 29.82 in 2.5 mi ESE 3.5 mph - 0.12 in Rain Heavy Rain
7:38 PM 48.2 °F - 48.2 °F 100% 29.81 in 2.5 mi East 8.1 mph - 0.07 in Rain Light Rain
7:45 PM 48.2 °F - 48.2 °F 100% 29.81 in 4.0 mi East 5.8 mph - 0.07 in Rain Light Rain
7:53 PM 50.0 °F - 48.9 °F 96% 29.82 in 5.0 mi Calm Calm - 0.07 in Rain Rain
8:53 PM 50.0 °F - 48.0 °F 93% 29.86 in 8.0 mi Calm Calm - 0.03 in Rain Light Rain
9:53 PM 50.0 °F - 48.9 °F 96% 29.88 in 8.0 mi Calm Calm - 0.00 in   Overcast
10:53 PM 48.9 °F - 48.0 °F 97% 29.93 in 9.0 mi Calm Calm - N/A   Overcast
11:53 PM 48.0 °F - 45.0 °F 89% 29.97 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy