Weather History for Decatur, IL

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Month of January, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 62 °F 43 °F 19 °F
Mean Temperature 54 °F 34 °F 16 °F
Min Temperature 46 °F 24 °F 8 °F
Degree Days  
Heating Degree Days (base 65) 49 31 11 974
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 4 0 0 4
Dew Point  
Dew Point 57 °F 26 °F -1 °F
Precipitation  
Precipitation 0.65 in 0.07 in 0.00 in 1.92 in
Snowdepth - - - -
Wind  
Wind 38 mph 12 mph 0 mph
Gust Wind 53 mph 25 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.52 in 30.03 in 29.42 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jan. 06, 2012 Rise Set
Actual Time 7:17 AM CST 4:45 PM CST
Civil Twilight 6:46 AM CST 5:15 PM CST
Nautical Twilight 6:13 AM CST 5:49 PM CST
Astronomical Twilight 5:40 AM CST 6:22 PM CST
Moon 2:36 PM CST (1/6) 4:56 AM CST (1/6)
Length of Visible Light 10h 28m
Length of Day
9h 28m
Waxing Gibbous, 93% of the Moon is Illuminated
Jan 6
Waxing Gibbous
Jan 9
Full
Jan 16
Last Quarter
Jan 23
New
Jan 30
First Quarter

Weather History Calendar

Precipitation Actual month total 1.92 Normal Month Total: 1.74
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Rain
Actual:
49 | 31 0.05
Average:
36 | 20 0.08
Snow
Actual:
31 | 20 T
Average:
36 | 20 0.08
Clear
Actual:
32 | 14 0.00
Average:
36 | 20 0.08
Scattered Clouds
Actual:
49 | 30 0.00
Average:
36 | 20 0.07
Clear
Actual:
56 | 26 0.00
Average:
36 | 20 0.08
Clear
Actual:
62 | 39 0.00
Average:
35 | 20 0.07
Clear
Actual:
47 | 28 0.00
Average:
35 | 20 0.06
Partly Cloudy
Actual:
45 | 22 0.00
Average:
35 | 19 0.07
Clear
Actual:
49 | 23 0.00
Average:
35 | 19 0.06
Clear
Actual:
56 | 28 0.00
Average:
35 | 19 0.06
Rain
Actual:
50 | 29 0.17
Average:
35 | 19 0.06
Snow
Actual:
39 | 15 0.00
Average:
35 | 19 0.05
Snow
Actual:
19 | 13 0.00
Average:
35 | 19 0.05
Snow
Actual:
24 | 8 0.01
Average:
35 | 19 0.06
Scattered Clouds
Actual:
37 | 16 0.00
Average:
35 | 19 0.05
Scattered Clouds
Actual:
58 | 34 0.00
Average:
35 | 19 0.07
Thunderstorm
Actual:
60 | 18 0.43
Average:
35 | 19 0.07
Scattered Clouds
Actual:
29 | 11 0.00
Average:
35 | 19 0.05
Partly Cloudy
Actual:
31 | 10 0.00
Average:
35 | 19 0.05
Partly Cloudy
Actual:
25 | 9 T
Average:
35 | 19 0.04
Partly Cloudy
Actual:
30 | 20 0.00
Average:
35 | 19 0.05
Thunderstorm
Actual:
54 | 24 0.46
Average:
35 | 19 0.04
Rain
Actual:
51 | 33 0.01
Average:
35 | 19 0.04
Partly Cloudy
Actual:
37 | 27 0.00
Average:
35 | 19 0.05
Snow
Actual:
34 | 25 0.07
Average:
35 | 19 0.04
Rain
Actual:
36 | 33 0.65
Average:
35 | 19 0.05
Partly Cloudy
Actual:
41 | 31 T
Average:
35 | 20 0.04
Snow
Actual:
40 | 28 0.06
Average:
35 | 20 0.04
Scattered Clouds
Actual:
38 | 24 0.00
Average:
35 | 20 0.04
Partly Cloudy
Actual:
57 | 29 0.00
Average:
35 | 20 0.04
Rain
Actual:
62 | 46 0.01
Average:
36 | 20 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
Jan high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 49 40 31 41 27 12 85 60 34 30.27 30.01 29.65 10 10 9 38 21 53 0.05 Rain
2 31 26 20 18 14 7 81 67 52 30.48 30.31 30.22 10 7 1 29 18 40 T Snow
3 32 23 14 16 12 9 88 66 43 30.52 30.37 30.13 10 10 10 21 11 26 0.00  
4 49 40 30 29 24 17 64 53 42 30.15 30.07 30.01 10 10 10 21 12 26 0.00  
5 56 41 26 36 31 23 85 66 47 30.12 29.98 29.84 10 10 10 18 10 23 0.00  
6 62 51 39 39 34 31 73 58 42 29.87 29.80 29.72 10 10 10 22 11 28 0.00  
7 47 38 28 31 29 26 92 71 49 30.25 30.11 29.89 10 10 10 16 9 22 0.00  
8 45 34 22 32 28 22 100 73 45 30.38 30.31 30.26 10 10 9 14 5 16 0.00  
9 49 36 23 29 26 22 92 66 39 30.29 30.18 30.09 10 10 10 16 6 21 0.00  
10 56 42 28 32 28 25 92 64 35 30.12 29.99 29.80 10 10 10 20 5 23 0.00  
11 50 40 29 45 39 27 100 83 66 29.78 29.59 29.50 10 7 2 24 9 29 0.17 Rain
12 39 27 15 36 15 9 96 82 67 29.80 29.65 29.57 10 3 0 27 19 38 0.00 Fog , Snow
13 19 16 13 13 10 8 80 74 67 30.16 29.97 29.77 10 8 2 28 13 36 0.00 Snow
14 24 16 8 19 14 5 100 90 80 30.32 30.18 30.07 10 5 0 10 4 24 0.01 Fog , Snow
15 37 27 16 29 23 16 92 81 70 30.41 30.27 30.05 10 9 7 25 13 33 0.00  
16 58 46 34 55 43 27 93 82 70 30.04 29.84 29.69 10 10 10 25 16 36 0.00  
17 60 39 18 57 35 11 100 87 73 30.34 29.88 29.59 10 7 2 36 17 47 0.43 Rain , Thunderstorm
18 29 20 11 20 14 8 88 73 58 30.37 30.21 29.95 10 10 10 18 10 23 0.00  
19 31 21 10 25 14 2 75 70 64 30.22 30.06 29.89 10 10 10 22 11 26 0.00  
20 25 17 9 18 11 -1 91 75 59 30.22 30.07 29.95 10 9 2 22 14 25 T  
21 30 25 20 22 18 15 96 80 63 30.25 30.14 30.04 10 10 5 22 13 28 0.00  
22 54 39 24 52 37 23 100 94 88 30.09 29.77 29.44 10 2 0 24 15 35 0.46 Fog , Rain , Thunderstorm
23 51 42 33 48 34 25 93 81 69 30.04 29.72 29.42 10 9 4 29 16 39 0.01 Rain
24 37 32 27 27 24 21 92 77 61 30.37 30.27 30.06 10 10 8 17 7 22 0.00  
25 34 30 25 34 29 22 100 93 85 30.35 30.20 30.01 10 6 2 17 8 21 0.07 Rain , Snow
26 36 35 33 36 34 33 100 96 92 29.99 29.81 29.67 6 3 0 15 8 23 0.65 Fog , Rain
27 41 36 31 34 31 27 96 78 59 30.04 29.92 29.72 10 9 5 16 7 23 T  
28 40 34 28 34 27 17 100 70 40 30.26 30.10 29.95 10 8 2 24 14 39 0.06 Snow
29 38 31 24 25 20 18 92 68 44 30.29 30.21 30.10 10 10 10 25 11 35 0.00  
30 57 43 29 39 32 22 85 66 47 30.24 30.05 29.96 10 10 10 28 17 35 0.00  
31 62 54 46 52 43 34 86 71 56 29.99 29.95 29.88 10 10 7 28 18 35 0.01 Rain