Weather History for Arlington, WA

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 53 °F 43 °F 35 °F
Mean Temperature 52 °F 37 °F 28 °F
Min Temperature 50 °F 31 °F 21 °F
Degree Days  
Heating Degree Days (base 65) 37 28 14 867
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 2
Dew Point  
Dew Point 46 °F 32 °F 7 °F
Precipitation  
Precipitation 0.03 in 0.00 in 0.00 in 0.05 in
Snowdepth - - - -
Wind  
Wind 30 mph 3 mph 0 mph
Gust Wind 44 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.82 in 30.30 in 29.53 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 28, 2011 Rise Set
Actual Time 7:58 AM PST 4:21 PM PST
Civil Twilight 7:22 AM PST 4:58 PM PST
Nautical Twilight 6:42 AM PST 5:37 PM PST
Astronomical Twilight 6:04 AM PST 6:15 PM PST
Moon 10:07 AM PST 9:26 PM PST
Length of Visible Light 9h 35m
Length of Day
8h 22m
Waxing Crescent, 19% of the Moon is Illuminated
Dec 28
Waxing Crescent
Dec 31
First Quarter
Jan 8
Full
Jan 16
Last Quarter
Jan 22
New

Weather History Calendar

Precipitation Actual month total 0.05 Average Month Total: 5.95
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Mostly Cloudy
Actual:
37 | 24 0.00
Average:
45 | 31 0.24
Partly Cloudy
Actual:
44 | 32 0.00
Average:
44 | 31 0.37
Overcast
Actual:
39 | 24 0.00
Average:
46 | 34 0.16
Partly Cloudy
Actual:
42 | 26 0.00
Average:
42 | 34 0.24
Partly Cloudy
Actual:
39 | 21 0.00
Average:
41 | 31 0.22
Overcast
Actual:
39 | 21 0.00
Average:
42 | 29 0.17
Overcast
Actual:
41 | 35 0.00
Average:
47 | 32 0.22
Mostly Cloudy
Actual:
41 | 26 0.00
Average:
43 | 34 0.23
Partly Cloudy
Actual:
39 | 23 0.00
Average:
42 | 32 0.19
Partly Cloudy
Actual:
35 | 21 0.00
Average:
46 | 33 0.24
Partly Cloudy
Actual:
39 | 28 0.00
Average:
51 | 40 0.23
Partly Cloudy
Actual:
37 | 21 0.00
Average:
47 | 34 0.20
Partly Cloudy
Actual:
37 | 26 0.00
Average:
48 | 36 0.16
Overcast
Actual:
41 | 30 0.00
Average:
51 | 35 0.27
Overcast
Actual:
42 | 35 0.00
Average:
51 | 40 0.19
Mostly Cloudy
Actual:
50 | 35 0.00
Average:
52 | 39 0.22
Partly Cloudy
Actual:
50 | 30 0.00
Average:
50 | 39 0.19
Mostly Cloudy
Actual:
46 | 37 0.00
Average:
45 | 35 0.18
Overcast
Actual:
46 | 39 0.00
Average:
43 | 30 0.10
Mostly Cloudy
Actual:
44 | 35 0.00
Average:
43 | 29 0.18
Partly Cloudy
Actual:
44 | 26 0.00
Average:
45 | 32 0.16
Scattered Clouds
Actual:
42 | 21 0.00
Average:
45 | 34 0.20
Mostly Cloudy
Actual:
48 | 35 0.00
Average:
45 | 33 0.18
Partly Cloudy
Actual:
50 | 39 0.01
Average:
46 | 31 0.15
Partly Cloudy
Actual:
48 | 37 0.03
Average:
43 | 29 0.15
Overcast
Actual:
44 | 33 0.01
Average:
47 | 30 0.18
Overcast
Actual:
51 | 41 0.00
Average:
45 | 29 0.22
Overcast
Actual:
53 | 50 0.00
Average:
43 | 22 0.16
Mostly Cloudy
Actual:
48 | 39 0.00
Average:
39 | 21 0.12
Thunderstorm
Actual:
48 | 37 0.00
Average:
41 | 24 0.07
Scattered Clouds
Actual:
42 | 28 0.00
Average:
38 | 18 0.16
 

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

2011 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  
1 37 30 24 34 29 21 93 87 80 30.82 30.67 30.45 10 4 0 7 0 - 0.00  
2 44 38 32 36 32 28 93 81 61 30.54 30.50 30.44 10 6 0 7 1 - 0.00  
3 39 32 24 34 29 19 93 86 75 30.55 30.53 30.51 10 7 0 0 0 - 0.00  
4 42 34 26 34 27 21 93 83 61 30.63 30.58 30.53 10 5 0 8 1 - 0.00  
5 39 30 21 32 24 16 93 82 70 30.61 30.53 30.46 10 6 0 4 0 - 0.00  
6 39 30 21 32 26 18 100 83 75 30.50 30.47 30.45 10 6 0 0 0 - 0.00  
7 41 38 35 36 33 30 93 86 81 30.49 30.47 30.45 10 7 2 5 0 - 0.00  
8 41 34 26 32 29 21 93 79 65 30.48 30.45 30.41 10 10 3 6 1 - 0.00  
9 39 31 23 30 25 19 93 84 70 30.41 30.29 30.17 10 4 0 4 0 - 0.00  
10 35 28 21 32 25 18 93 86 74 30.19 30.16 30.14 10 5 0 0 0 - 0.00  
11 39 34 28 36 31 25 93 84 75 30.19 30.14 30.12 10 4 0 9 1 - 0.00  
12 37 29 21 30 23 16 93 84 65 30.31 30.25 30.15 10 3 0 5 0 - 0.00  
13 37 32 26 28 25 21 93 78 56 30.14 30.08 30.04 10 10 8 6 0 - 0.00  
14 41 36 30 30 28 25 87 76 57 30.18 30.14 30.08 10 10 10 12 1 - 0.00  
15 42 38 35 37 35 30 87 85 81 30.49 30.33 30.13 10 6 1 5 0 - 0.00  
16 50 42 35 41 37 32 87 79 62 30.51 30.47 30.43 10 9 1 9 1 - 0.00  
17 50 40 30 36 33 28 93 83 58 30.41 30.21 30.02 10 8 0 4 0 - 0.00  
18 46 42 37 41 38 30 93 85 75 30.44 30.27 30.08 10 6 0 8 1 - 0.00  
19 46 42 39 37 36 34 93 78 62 30.49 30.46 30.41 10 7 2 7 0 - 0.00  
20 44 40 35 39 36 30 87 80 66 30.41 30.33 30.27 10 9 3 8 1 - 0.00  
21 44 35 26 36 32 21 93 83 61 30.56 30.49 30.35 10 8 0 8 0 - 0.00  
22 42 32 21 30 24 18 93 77 53 30.55 30.43 30.32 10 7 0 5 0 - 0.00  
23 48 42 35 39 33 21 81 69 46 30.58 30.51 30.37 10 10 10 16 6 - 0.00  
24 50 44 39 45 42 36 93 86 76 30.50 30.42 30.29 10 10 2 15 7 20 0.01  
25 48 42 37 39 36 32 93 77 58 30.36 30.11 29.93 10 10 7 30 7 44 0.03  
26 44 38 33 37 35 28 87 82 70 30.36 30.30 30.21 10 10 9 15 6 21 0.01  
27 51 46 41 45 41 36 87 79 76 30.15 30.00 29.69 10 10 10 29 15 36 0.00  
28 53 52 50 46 45 43 82 76 71 29.85 29.74 29.58 10 10 10 28 14 36 0.00  
29 48 44 39 43 37 34 87 74 66 30.09 29.89 29.56 10 10 10 14 7 21 0.00  
30 48 44 37 43 29 7 82 56 21 30.24 29.83 29.53 10 10 7 24 9 34 0.00 Thunderstorm
31 42 35 28 30 27 23 93 72 49 30.44 30.36 30.25 10 10 3 9 3 - 0.00