Weather History for Chicago, IL

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Month of January, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 57 °F 39 °F 19 °F
Mean Temperature 50 °F 30 °F 14 °F
Min Temperature 43 °F 22 °F 5 °F
Degree Days  
Heating Degree Days (base 65) 51 35 15 1071
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 46 °F 22 °F -12 °F
Precipitation  
Precipitation 0.54 in 0.07 in 0.00 in 1.86 in
Snowdepth 5.0 in 2.1 in 0.0 in -
Wind  
Wind 33 mph 10 mph 0 mph
Gust Wind 47 mph 24 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.45 in 29.97 in 29.34 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jan. 18, 2012 Rise Set
Actual Time 7:15 AM CST 4:48 PM CST
Civil Twilight 6:45 AM CST 5:19 PM CST
Nautical Twilight 6:11 AM CST 5:53 PM CST
Astronomical Twilight 5:37 AM CST 6:26 PM CST
Moon 2:45 AM CST (1/18) 12:26 PM CST (1/18)
Length of Visible Light 10h 33m
Length of Day
9h 32m
Waning Crescent, 24% of the Moon is Illuminated
Jan 18
Waning Crescent
Jan 23
New
Jan 30
First Quarter
Feb 7
Full
Feb 14
Last Quarter

Weather History Calendar

Precipitation Actual month total 1.86 Normal Month Total: 1.73
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Snow
Actual:
44 | 29 0.04
Average:
32 | 17 0.06
Snow
Actual:
29 | 18 0.01
Average:
31 | 17 0.07
Partly Cloudy
Actual:
27 | 13 0.00
Average:
31 | 17 0.06
Partly Cloudy
Actual:
41 | 25 0.00
Average:
31 | 17 0.06
Partly Cloudy
Actual:
49 | 23 0.00
Average:
31 | 17 0.06
Mostly Cloudy
Actual:
55 | 38 0.00
Average:
31 | 17 0.07
Scattered Clouds
Actual:
44 | 28 0.00
Average:
31 | 17 0.06
Partly Cloudy
Actual:
42 | 25 0.00
Average:
31 | 17 0.06
Scattered Clouds
Actual:
46 | 25 0.00
Average:
31 | 17 0.06
Clear
Actual:
52 | 25 0.00
Average:
31 | 17 0.06
Partly Cloudy
Actual:
54 | 27 0.00
Average:
31 | 16 0.06
Snow
Actual:
37 | 19 0.35
Average:
31 | 16 0.06
Snow
Actual:
22 | 17 0.01
Average:
31 | 16 0.05
Snow
Actual:
19 | 8 T
Average:
31 | 16 0.06
Snow
Actual:
31 | 5 T
Average:
31 | 16 0.06
Rain
Actual:
45 | 30 0.04
Average:
31 | 16 0.05
Snow
Actual:
39 | 17 0.16
Average:
31 | 16 0.06
Partly Cloudy
Actual:
26 | 10 0.00
Average:
31 | 16 0.05
Snow
Actual:
28 | 5 0.01
Average:
31 | 16 0.05
Snow
Actual:
24 | 5 0.54
Average:
31 | 16 0.06
Snow
Actual:
25 | 16 T
Average:
31 | 16 0.05
Thunderstorm
Actual:
40 | 16 0.32
Average:
31 | 16 0.05
Thunderstorm
Actual:
46 | 30 0.29
Average:
31 | 16 0.05
Partly Cloudy
Actual:
37 | 25 0.00
Average:
31 | 16 0.06
Mostly Cloudy
Actual:
36 | 22 0.00
Average:
31 | 16 0.04
Overcast
Actual:
38 | 32 T
Average:
31 | 16 0.05
Snow
Actual:
43 | 34 0.04
Average:
31 | 16 0.05
Snow
Actual:
34 | 26 0.05
Average:
31 | 17 0.05
Snow
Actual:
31 | 21 T
Average:
31 | 17 0.05
Partly Cloudy
Actual:
53 | 22 0.00
Average:
32 | 17 0.05
Partly Cloudy
Actual:
57 | 43 0.00
Average:
32 | 17 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 44 37 29 36 26 16 85 71 56 30.07 29.82 29.52 10 9 2 33 19 47 0.04 Rain , Snow
2 29 24 18 18 11 5 77 64 50 30.42 30.19 30.06 10 7 2 29 18 37 0.01 Snow
3 27 20 13 14 7 4 70 54 38 30.45 30.30 30.04 10 10 10 23 10 28 0.00  
4 41 33 25 25 20 15 69 57 44 30.07 30.00 29.93 10 10 10 17 8 21 0.00  
5 49 36 23 31 27 19 81 66 50 30.04 29.88 29.70 10 10 10 15 8 23 0.00  
6 55 47 38 36 32 28 70 58 46 29.79 29.72 29.66 10 10 10 20 8 25 0.00  
7 44 36 28 28 26 23 78 66 53 30.25 30.05 29.81 10 10 10 16 7 20 0.00  
8 42 34 25 28 24 19 85 70 54 30.37 30.32 30.27 10 10 8 9 3 13 0.00  
9 46 36 25 29 27 24 92 69 45 30.27 30.09 29.95 10 9 6 24 11 32 0.00  
10 52 39 25 32 29 23 92 68 44 30.07 29.95 29.80 10 10 10 16 5 22 0.00  
11 54 41 27 32 29 24 85 63 41 29.78 29.62 29.49 10 10 10 10 3 22 0.00  
12 37 28 19 30 24 14 92 84 75 29.57 29.46 29.37 9 3 0 23 12 29 0.35 Fog , Snow
13 22 20 17 14 12 10 80 74 67 30.06 29.83 29.55 10 8 2 20 12 24 0.01 Snow
14 19 14 8 11 8 6 80 68 56 30.28 30.15 30.03 10 9 5 10 5 14 T Snow
15 31 18 5 22 14 3 80 74 67 30.38 30.26 30.04 10 10 8 22 11 28 T Snow
16 45 38 30 38 32 22 86 74 62 30.01 29.80 29.70 10 9 6 23 10 31 0.04 Rain
17 39 28 17 37 26 6 92 77 62 30.27 29.81 29.57 10 5 1 28 15 36 0.16 Rain , Snow
18 26 18 10 18 10 3 76 65 54 30.31 30.15 29.86 10 10 10 23 11 29 0.00  
19 28 17 5 22 5 -12 81 62 42 30.24 29.98 29.77 10 8 2 23 13 30 0.01 Snow
20 24 15 5 19 9 -12 88 67 45 30.27 30.14 30.05 10 4 0 12 5 22 0.54 Fog , Snow
21 25 21 16 18 13 8 84 73 62 30.27 30.20 30.08 10 10 7 15 8 23 T Snow
22 40 28 16 38 28 10 96 85 74 30.12 29.79 29.46 10 3 0 21 13 24 0.32 Fog , Rain , Snow , Thunderstorm
23 46 38 30 43 33 21 92 81 69 29.92 29.53 29.34 10 7 2 30 17 43 0.29 Rain , Snow , Thunderstorm
24 37 31 25 24 22 19 78 69 59 30.36 30.18 29.91 10 10 9 21 9 26 0.00  
25 36 29 22 29 25 19 88 79 70 30.37 30.25 30.08 8 6 4 12 4 14 0.00  
26 38 35 32 36 32 28 92 87 82 30.05 29.80 29.64 6 3 1 15 4 20 T  
27 43 39 34 31 27 21 89 66 43 29.98 29.85 29.65 10 8 2 18 9 23 0.04 Snow
28 34 30 26 31 24 17 89 74 58 30.12 29.95 29.79 10 7 1 28 15 36 0.05 Snow
29 31 26 21 27 19 12 75 65 55 30.25 30.07 29.93 10 8 1 24 11 31 T Snow
30 53 38 22 38 28 15 74 63 52 30.24 29.96 29.81 10 10 10 25 13 32 0.00  
31 57 50 43 46 41 36 83 71 59 29.89 29.82 29.77 10 10 10 24 15 35 0.00