Weather History for Walla Walla, WA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 61 °F 45 °F 28 °F
Mean Temperature 54 °F 40 °F 26 °F
Min Temperature 48 °F 34 °F 23 °F
Degree Days  
Heating Degree Days (base 65) 40 25 10 779
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 4 0 0 9
Dew Point  
Dew Point 47 °F 31 °F 14 °F
Precipitation  
Precipitation 0.33 in 0.06 in 0.00 in 1.83 in
Snowdepth - - - -
Wind  
Wind 40 mph 9 mph 0 mph
Gust Wind 63 mph 28 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.53 in 29.96 in 29.20 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 30, 2012 Rise Set
Actual Time 7:35 AM PST 4:16 PM PST
Civil Twilight 7:00 AM PST 4:51 PM PST
Nautical Twilight 6:22 AM PST 5:29 PM PST
Astronomical Twilight 5:46 AM PST 6:05 PM PST
Moon 7:01 PM PST (12/30) 8:38 AM PST (12/30)
Length of Visible Light 9h 50m
Length of Day
8h 41m
Waning Gibbous, 95% of the Moon is Illuminated
Dec 30
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Weather History Calendar

Precipitation Actual month total 1.83 Average Month Total: 2.28
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
60 | 46 0.33
Average:
43 | 33 0.13
Rain
Actual:
52 | 43 0.28
Average:
44 | 34 0.12
Partly Cloudy
Actual:
57 | 48 0.00
Average:
47 | 34 0.02
Rain
Actual:
61 | 48 0.16
Average:
45 | 31 0.19
Rain
Actual:
57 | 39 0.17
Average:
41 | 31 0.13
Partly Cloudy
Actual:
46 | 35 0.00
Average:
42 | 31 0.13
Rain
Actual:
50 | 37 0.01
Average:
39 | 29 0.09
Partly Cloudy
Actual:
39 | 33 0.00
Average:
42 | 28 0.07
Rain
Actual:
46 | 32 0.00
Average:
42 | 31 0.06
Snow
Actual:
51 | 33 0.00
Average:
43 | 31 0.09
Rain
Actual:
48 | 41 0.22
Average:
43 | 30 0.06
Rain
Actual:
45 | 33 0.00
Average:
41 | 31 0.08
Snow
Actual:
36 | 26 0.00
Average:
40 | 29 0.09
Snow
Actual:
36 | 30 0.08
Average:
42 | 29 0.03
Snow
Actual:
42 | 28 0.07
Average:
42 | 29 0.04
Rain
Actual:
52 | 36 0.04
Average:
39 | 30 0.01
Partly Cloudy
Actual:
50 | 34 0.00
Average:
38 | 29 0.05
Partly Cloudy
Actual:
39 | 32 0.00
Average:
37 | 27 0.04
Snow
Actual:
46 | 30 0.00
Average:
37 | 28 0.07
Rain
Actual:
54 | 39 0.00
Average:
38 | 27 0.08
Rain
Actual:
50 | 37 0.02
Average:
38 | 28 0.07
Rain
Actual:
53 | 37 0.06
Average:
38 | 28 0.04
Rain
Actual:
48 | 35 0.11
Average:
38 | 28 0.06
Rain
Actual:
44 | 33 0.10
Average:
41 | 28 0.05
Snow
Actual:
41 | 32 0.17
Average:
38 | 29 0.08
Snow
Actual:
34 | 30 0.01
Average:
39 | 29 0.07
Rain
Actual:
39 | 33 0.00
Average:
37 | 28 0.12
Fog
Actual:
35 | 26 0.00
Average:
34 | 24 0.05
Snow
Actual:
32 | 28 0.00
Average:
32 | 22 0.07
Mostly Cloudy
Actual:
33 | 26 0.00
Average:
32 | 24 0.04
Fog
Actual:
28 | 23 0.00
Average:
33 | 24 0.05
 

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
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 60 53 46 44 41 35 93 70 39 29.78 29.65 29.49 10 9 4 22 13 31 0.33 Rain
2 52 48 43 47 38 30 97 69 48 29.93 29.56 29.22 10 10 4 22 12 33 0.28 Rain
3 57 52 48 36 32 27 58 46 32 30.07 30.00 29.84 10 10 10 18 11 30 0.00  
4 61 54 48 47 42 30 72 57 37 29.84 29.79 29.73 10 10 8 30 21 43 0.16 Rain
5 57 48 39 45 36 31 87 70 52 30.23 30.11 29.78 10 10 3 22 15 33 0.17 Rain
6 46 40 35 33 31 28 76 63 54 30.19 30.14 30.08 10 10 10 17 10 20 0.00  
7 50 44 37 36 32 26 73 64 50 30.12 30.03 29.92 10 10 8 25 12 37 0.01 Rain
8 39 36 33 34 30 27 93 80 70 30.35 30.22 30.10 10 10 10 9 6 - 0.00  
9 46 39 32 38 32 26 89 75 55 30.45 30.34 30.22 10 10 10 17 5 17 0.00 Rain
10 51 42 33 41 37 33 100 85 66 30.34 30.26 30.09 10 6 0 14 6 - 0.00 Fog , Snow
11 48 44 41 38 34 30 89 69 50 30.05 29.73 29.59 10 10 6 15 8 - 0.22 Rain
12 45 39 33 38 35 32 100 82 65 30.02 29.83 29.60 10 8 2 15 8 - 0.00 Rain
13 36 31 26 36 32 27 100 95 87 30.07 29.98 29.86 10 3 0 6 2 - 0.00 Fog , Snow
14 36 33 30 35 31 27 97 92 85 29.99 29.88 29.80 10 3 0 7 2 - 0.08 Fog , Rain , Snow
15 42 35 28 36 33 27 100 88 70 29.99 29.84 29.62 10 6 0 22 5 36 0.07 Fog , Rain , Snow
16 52 44 36 37 31 26 87 65 49 29.83 29.65 29.20 10 10 10 34 13 44 0.04 Rain
17 50 42 34 36 30 22 73 59 48 29.95 29.63 29.23 10 10 10 31 21 44 0.00  
18 39 36 32 25 22 20 70 57 45 30.06 29.99 29.94 10 10 9 18 12 22 0.00  
19 46 38 30 29 21 14 66 48 33 30.08 29.98 29.82 10 10 9 36 16 51 0.00 Snow
20 54 46 39 34 21 15 82 38 23 29.90 29.78 29.69 10 10 10 40 28 63 0.00 Rain
21 50 44 37 38 32 25 86 67 39 29.90 29.83 29.73 10 10 7 18 7 24 0.02 Rain
22 53 45 37 39 31 25 82 57 35 29.83 29.68 29.54 10 9 3 30 14 41 0.06 Rain
23 48 42 35 36 30 23 93 66 39 29.89 29.73 29.54 10 10 5 32 11 38 0.11 Rain
24 44 38 33 34 31 26 93 76 68 30.20 30.05 29.81 10 10 5 17 11 28 0.10 Rain
25 41 36 32 32 30 21 100 83 51 30.17 29.89 29.80 10 6 0 16 6 - 0.17 Fog , Rain , Snow
26 34 32 30 34 32 30 100 95 92 30.00 29.87 29.77 10 3 0 8 4 - 0.01 Fog , Snow
27 39 36 33 34 32 28 96 85 70 30.21 30.10 29.98 10 8 2 13 3 - 0.00 Rain
28 35 30 26 29 27 25 100 92 75 30.27 30.22 30.18 10 3 0 5 2 - 0.00 Fog
29 32 30 28 29 27 25 100 88 75 30.28 30.22 30.14 10 7 1 7 1 - 0.00 Snow
30 33 30 26 29 27 21 100 89 75 30.39 30.33 30.25 10 7 2 6 1 - 0.00  
31 28 26 23 27 25 21 100 93 78 30.53 30.38 30.32 10 3 0 7 3 - 0.00 Fog