Portland, OR

11:50 AM PDT on July 27, 2017 (GMT -0700)
Portland International

Weather History for KPDX - December, 2012

Change the Weather History Date:

Monday, December 17, 2012

  Actual Average Record
Temperature  
Mean Temperature 43 °F 40 °F  
Max Temperature 50 °F 45 °F 58 °F (1999)
Min Temperature 36 °F 35 °F 7 °F (1964)
Degree Days  
Heating Degree Days 22 25  
Month to date heating degree days 333 408  
Since 1 July heating degree days 1142 1377  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 436 424  
Moisture  
Dew Point 36 °F    
Average Humidity 83    
Maximum Humidity 89    
Minimum Humidity 76    
Precipitation  
Precipitation 0.16 in 0.17 in 1.87 in (2015)
Month to date precipitation 4.42 3.14  
Year to date precipitation 47.30 33.68  
Snow  
Snow 0.00 in - 0.40 in (1984)
Month to date snowfall 0.0  
Since 1 July snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.74 in    
Wind  
Wind Speed 13 mph (SW)    
Max Wind Speed 38 mph    
Max Gust Speed 48 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport or City:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Dec. 17, 2012 Rise Set
Actual Time 7:45 AM PST 4:27 PM PST
Civil Twilight 7:11 AM PST 5:02 PM PST
Nautical Twilight 6:33 AM PST 5:39 PM PST
Astronomical Twilight 5:57 AM PST 6:16 PM PST
Moon 10:44 AM PST (12/17) 10:10 PM PST (12/17)
Length of Visible Light 9h 50m
Length of Day
8h 42m
Waxing Crescent, 26% of the Moon is Illuminated
Dec 17
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
12:32 AM 48.2 °F - 41.0 °F 76% 29.20 in 10.0 mi SW 24.2 mph 36.8 mph 0.00 in   Mostly Cloudy
12:53 AM 48.0 °F - 41.0 °F 77% 29.20 in 10.0 mi SW 25.3 mph 38.0 mph 0.00 in Rain Light Rain
1:53 AM 46.9 °F - 41.0 °F 80% 29.24 in 10.0 mi SSW 26.5 mph 39.1 mph 0.01 in Rain Light Rain
2:53 AM 46.9 °F - 39.9 °F 77% 29.33 in 10.0 mi SW 25.3 mph 36.8 mph 0.00 in Rain Light Rain
3:53 AM 46.9 °F - 39.9 °F 77% 29.41 in 10.0 mi WSW 10.4 mph - 0.00 in   Overcast
4:53 AM 45.0 °F 38.5 °F 39.9 °F 82% 29.47 in 10.0 mi SW 13.8 mph - 0.01 in Rain Light Rain
5:53 AM 44.1 °F 35.9 °F 39.9 °F 85% 29.53 in 9.0 mi WSW 19.6 mph - 0.04 in Rain Light Rain
6:53 AM 43.0 °F 37.2 °F 39.0 °F 86% 29.60 in 10.0 mi WSW 10.4 mph - 0.04 in Rain Light Rain
7:23 AM 42.8 °F 35.8 °F 39.2 °F 87% 29.63 in 10.0 mi WSW 13.8 mph 19.6 mph 0.01 in Rain Light Rain
7:53 AM 43.0 °F 37.2 °F 37.9 °F 82% 29.65 in 10.0 mi SW 10.4 mph - 0.02 in Rain Light Rain
8:37 AM 42.8 °F 38.6 °F 37.4 °F 81% 29.70 in 10.0 mi SW 6.9 mph - 0.01 in Rain Light Rain
8:53 AM 42.1 °F 37.1 °F 37.0 °F 82% 29.71 in 10.0 mi SSW 8.1 mph - 0.01 in   Mostly Cloudy
9:43 AM 42.8 °F 36.6 °F 37.4 °F 81% 29.76 in 8.0 mi WSW 11.5 mph - 0.01 in Rain Light Rain
9:53 AM 43.0 °F 37.7 °F 36.0 °F 76% 29.76 in 10.0 mi SW 9.2 mph - 0.01 in Rain Light Rain
10:37 AM 42.8 °F 36.6 °F 35.6 °F 76% 29.79 in 7.0 mi WSW 11.5 mph 18.4 mph 0.01 in Rain Light Rain
10:53 AM 42.1 °F 37.1 °F 36.0 °F 79% 29.81 in 10.0 mi West 8.1 mph - 0.01 in   Mostly Cloudy
11:12 AM 41.0 °F 33.1 °F 35.6 °F 81% 29.82 in 8.0 mi West 15.0 mph 20.7 mph 0.01 in Rain Rain
11:53 AM 41.0 °F 36.4 °F 36.0 °F 82% 29.83 in 10.0 mi SSW 6.9 mph - 0.01 in   Mostly Cloudy
12:39 PM 42.8 °F 36.2 °F 35.6 °F 76% 29.84 in 10.0 mi WSW 12.7 mph - 0.00 in Rain Light Rain
12:53 PM 42.1 °F 34.9 °F 35.1 °F 76% 29.85 in 10.0 mi West 13.8 mph - 0.00 in Rain Light Rain
1:30 PM 41.0 °F 33.9 °F 35.6 °F 81% 29.85 in 10.0 mi West 12.7 mph - 0.00 in Rain Light Rain
1:53 PM 39.9 °F 35.8 °F 35.1 °F 83% 29.86 in 10.0 mi West 5.8 mph - 0.00 in Rain Light Rain
4:53 PM 37.9 °F 30.5 °F 33.1 °F 83% 29.93 in 10.0 mi SSW 11.5 mph - N/A   Scattered Clouds
5:53 PM 39.0 °F 31.0 °F 34.0 °F 82% 29.94 in 10.0 mi SSW 13.8 mph - N/A   Scattered Clouds
6:53 PM 39.0 °F 30.6 °F 34.0 °F 82% 29.95 in 10.0 mi SSW 15.0 mph - N/A   Mostly Cloudy
7:53 PM 37.9 °F 30.0 °F 34.0 °F 86% 29.98 in 10.0 mi SSW 12.7 mph - 0.00 in   Mostly Cloudy
8:53 PM 37.0 °F 28.5 °F 34.0 °F 89% 29.97 in 10.0 mi South 13.8 mph - 0.00 in   Mostly Cloudy
9:53 PM 37.0 °F 28.5 °F 33.1 °F 86% 29.98 in 10.0 mi South 13.8 mph 23.0 mph N/A   Mostly Cloudy
10:37 PM 35.6 °F 29.2 °F 33.8 °F 93% 30.00 in 10.0 mi South 8.1 mph - N/A   Overcast
10:53 PM 37.0 °F 31.6 °F 34.0 °F 89% 30.01 in 10.0 mi South 6.9 mph - N/A   Overcast
11:42 PM 37.4 °F 31.4 °F 33.8 °F 87% 30.00 in 10.0 mi South 8.1 mph - 0.00 in Rain Light Rain
11:53 PM 37.0 °F 31.6 °F 34.0 °F 89% 30.00 in 10.0 mi South 6.9 mph - 0.00 in Rain Light Rain