Portland, OR

2:04 PM PST on December 16, 2017 (GMT -0800)
Portland International

Weather History for KPDX - December, 2012

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Week of December 9, 2012 through December 15, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 52 °F 47 °F 41 °F
Mean Temperature 48 °F 43 °F 38 °F
Min Temperature 44 °F 39 °F 35 °F
Degree Days  
Heating Degree Days (base 65) 27 22 17 151
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 47 °F 40 °F 34 °F
Precipitation  
Precipitation 0.32 in 0.20 in 0.00 in 1.17 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 18 mph 5 mph 0 mph
Gust Wind 23 mph 21 mph 18 mph
Sea Level Pressure  
Sea Level Pressure 30.43 in 30.02 in 29.63 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Dec. 10, 2012 Rise Set
Actual Time 7:40 AM PST 4:26 PM PST
Civil Twilight 7:06 AM PST 5:00 PM PST
Nautical Twilight 6:28 AM PST 5:38 PM PST
Astronomical Twilight 5:52 AM PST 6:14 PM PST
Moon 4:24 AM PST (12/10) 2:24 PM PST (12/10)
Length of Visible Light 9h 54m
Length of Day
8h 46m
Waning Crescent, 9% of the Moon is Illuminated
Dec 10
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
9 49 45 40 47 42 38 100 95 89 30.42 30.38 30.35 10 7 1 10 6 13 0.08 Rain
10 52 48 44 47 45 43 100 86 71 30.43 30.36 30.14 10 10 7 8 2 9 T  
11 47 44 41 45 42 39 100 92 83 30.13 29.81 29.63 10 10 9 18 8 23 0.15 Rain
12 47 45 42 42 40 39 100 88 76 30.03 29.88 29.71 10 10 6 15 5 17 0.30 Rain
13 48 44 39 41 38 35 96 81 65 30.06 29.97 29.87 10 10 9 10 5 12 0.00  
14 45 40 35 41 38 35 100 92 83 29.99 29.91 29.84 10 8 2 10 5 12 0.32 Rain
15 41 38 35 40 36 34 100 93 85 29.95 29.80 29.64 10 8 2 18 6 22 0.32 Rain