Weather History for Portland Troutdale, OR

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Month of January, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 58 °F 47 °F 38 °F
Mean Temperature 50 °F 41 °F 33 °F
Min Temperature 46 °F 34 °F 26 °F
Degree Days  
Heating Degree Days (base 65) 32 24 15 752
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 51 °F 34 °F 14 °F
Precipitation  
Precipitation 1.81 in 0.21 in 0.00 in 5.97 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 37 mph 9 mph 0 mph
Gust Wind 47 mph 25 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.63 in 30.14 in 29.18 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jan. 19, 2012 Rise Set
Actual Time 7:43 AM PST 4:57 PM PST
Civil Twilight 7:10 AM PST 5:30 PM PST
Nautical Twilight 6:34 AM PST 6:06 PM PST
Astronomical Twilight 5:59 AM PST 6:41 PM PST
Moon 4:29 AM PST 1:30 PM PST
Length of Visible Light 10h 19m
Length of Day
9h 13m
Waning Crescent, 15% of the Moon is Illuminated
Jan 19
Waning Crescent
Jan 22
New
Jan 30
First Quarter
Feb 7
Full
Feb 14
Last Quarter

Weather History Calendar

Precipitation Actual month total 5.97 Normal Month Total: 6.18
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Scattered Clouds
Actual:
49 | 42 0.00
Average:
44 | 33 0.23
Rain
Actual:
58 | 39 0.01
Average:
44 | 33 0.23
Partly Cloudy
Actual:
51 | 42 0.00
Average:
44 | 33 0.23
Rain
Actual:
55 | 38 0.12
Average:
44 | 33 0.23
Rain
Actual:
50 | 32 T
Average:
44 | 33 0.22
Rain
Actual:
39 | 30 0.09
Average:
45 | 33 0.23
Rain
Actual:
48 | 34 T
Average:
45 | 33 0.21
Fog
Actual:
47 | 31 0.00
Average:
45 | 33 0.22
Rain
Actual:
44 | 31 0.26
Average:
45 | 33 0.21
Rain
Actual:
46 | 30 0.02
Average:
45 | 33 0.22
Clear
Actual:
42 | 35 0.00
Average:
45 | 33 0.21
Clear
Actual:
41 | 33 0.00
Average:
45 | 34 0.21
Clear
Actual:
44 | 33 0.00
Average:
45 | 34 0.21
Rain
Actual:
47 | 32 0.16
Average:
46 | 34 0.21
Snow
Actual:
38 | 31 0.01
Average:
46 | 34 0.21
Rain
Actual:
39 | 27 0.01
Average:
46 | 34 0.19
Snow
Actual:
40 | 32 0.66
Average:
46 | 34 0.19
Snow
Actual:
54 | 32 0.69
Average:
46 | 34 0.20
Rain
Actual:
43 | 36 1.81
Average:
46 | 34 0.19
Rain
Actual:
39 | 34 0.40
Average:
46 | 34 0.19
Rain
Actual:
48 | 38 0.05
Average:
47 | 34 0.19
Rain
Actual:
42 | 32 0.27
Average:
47 | 34 0.18
Fog
Actual:
41 | 31 0.00
Average:
47 | 35 0.18
Rain
Actual:
56 | 35 0.70
Average:
47 | 35 0.19
Rain
Actual:
54 | 46 0.13
Average:
47 | 35 0.18
Rain
Actual:
52 | 30 0.09
Average:
47 | 35 0.18
Fog
Actual:
43 | 26 0.00
Average:
47 | 35 0.17
Scattered Clouds
Actual:
45 | 28 0.00
Average:
47 | 35 0.17
Rain
Actual:
51 | 37 0.47
Average:
47 | 35 0.17
Mostly Cloudy
Actual:
52 | 42 0.01
Average:
48 | 35 0.16
Rain
Actual:
51 | 42 0.01
Average:
48 | 35 0.17
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Jan high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 49 46 42 30 29 29 62 56 49 30.25 30.19 30.09 10 10 10 30 24 39 0.00  
2 58 49 39 47 38 28 96 77 57 30.28 30.11 30.00 10 10 8 32 17 40 0.01 Rain
3 51 47 42 44 43 41 100 87 74 30.35 30.29 30.24 10 10 10 21 10 24 0.00  
4 55 47 38 51 43 38 93 82 71 30.29 30.22 30.16 10 10 6 20 9 25 0.12 Rain
5 50 41 32 43 38 30 100 81 61 30.44 30.39 30.30 10 7 0 10 3 13 T Fog , Rain
6 39 35 30 37 34 28 100 93 85 30.39 30.35 30.32 10 3 0 7 1 8 0.09 Fog , Rain
7 48 41 34 41 38 34 100 91 82 30.48 30.44 30.38 10 7 0 7 1 7 T Fog , Rain
8 47 39 31 38 33 30 100 86 71 30.43 30.38 30.30 10 6 0 12 2 15 0.00 Fog
9 44 38 31 43 36 30 100 90 79 30.35 30.30 30.22 10 5 0 8 2 10 0.26 Fog , Rain
10 46 38 30 41 34 29 100 79 58 30.49 30.42 30.31 10 10 9 16 3 23 0.02 Rain
11 42 39 35 24 16 14 64 51 37 30.46 30.39 30.34 10 10 10 29 22 37 0.00  
12 41 37 33 22 19 16 52 48 44 30.36 30.32 30.27 10 10 10 31 23 40 0.00  
13 44 39 33 25 24 22 69 57 45 30.30 30.23 30.12 10 10 10 25 12 31 0.00  
14 47 40 32 43 34 25 93 79 64 30.10 30.06 30.01 10 9 2 18 6 26 0.16 Rain
15 38 35 31 34 32 29 92 87 82 30.15 30.05 30.01 10 10 5 17 6 23 0.01 Rain , Snow
16 39 33 27 34 31 26 92 78 64 30.23 30.17 30.09 10 9 2 21 7 25 0.01 Rain
17 40 36 32 38 34 32 100 93 85 30.08 29.98 29.93 10 7 1 23 11 31 0.66 Rain , Snow
18 54 43 32 48 37 30 100 89 77 29.96 29.76 29.66 10 6 1 23 9 30 0.69 Rain , Snow
19 43 40 36 43 38 35 100 96 92 29.78 29.61 29.45 10 6 2 29 12 37 1.81 Rain
20 39 37 34 37 33 30 92 87 82 29.78 29.55 29.18 10 8 2 37 22 47 0.40 Rain
21 48 43 38 41 38 35 92 79 65 29.98 29.64 29.20 10 10 9 21 9 28 0.05 Rain
22 42 37 32 39 35 32 100 90 79 29.94 29.77 29.58 10 7 0 24 8 33 0.27 Fog , Rain
23 41 36 31 37 34 31 100 90 79 30.09 29.98 29.87 10 4 0 9 1 12 0.00 Fog
24 56 46 35 51 37 34 100 89 77 30.10 30.00 29.82 10 7 2 24 13 35 0.70 Rain
25 54 50 46 48 44 41 100 84 68 30.35 30.25 30.10 10 9 2 21 6 32 0.13 Rain
26 52 41 30 49 37 29 96 75 54 30.61 30.35 30.06 10 10 6 18 4 30 0.09 Rain
27 43 35 26 33 29 25 100 81 62 30.63 30.59 30.51 10 6 0 9 2 12 0.00 Fog
28 45 37 28 32 30 27 100 77 53 30.48 30.34 30.20 10 10 10 16 4 20 0.00  
29 51 44 37 47 40 30 92 81 70 30.21 30.03 29.87 10 10 7 23 7 33 0.47 Rain
30 52 47 42 43 41 39 96 80 63 30.14 30.09 29.99 10 10 10 17 5 23 0.01  
31 51 47 42 43 40 38 96 80 63 30.12 30.05 29.88 10 10 10 22 6 28 0.01 Rain