Weather History for Chicago, IL

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Month of April, 2007

  Max Avg Min Sum
Temperature  
Max Temperature 83 °F 56 °F 32 °F
Mean Temperature 68 °F 47 °F 27 °F
Min Temperature 52 °F 37 °F 22 °F
Degree Days  
Heating Degree Days (base 65) 38 18 0 543
Cooling Degree Days (base 65) 3 0 0 3
Growing Degree Days (base 50) 17 3 0 89
Dew Point  
Dew Point 61 °F 32 °F 3 °F
Precipitation  
Precipitation 1.15 in 0.16 in 0.00 in 3.49 in
Snowdepth 4.0 in 2.5 in 1.0 in -
Wind  
Wind 35 mph 12 mph 0 mph
Gust Wind 43 mph 24 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.29 in 29.95 in 29.34 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Apr. 29, 2007 Rise Set
Actual Time 5:50 AM CDT 7:48 PM CDT
Civil Twilight 5:20 AM CDT 8:18 PM CDT
Nautical Twilight 4:43 AM CDT 8:55 PM CDT
Astronomical Twilight 4:03 AM CDT 9:35 PM CDT
Moon 5:28 PM CDT (4/29) 4:26 AM CDT (4/29)
Length of Visible Light 14h 57m
Length of Day
13h 57m
Waxing Gibbous, 94% of the Moon is Illuminated
Apr 29
Waxing Gibbous
May 2
Full
May 9
Last Quarter
May 16
New
May 23
First Quarter

Weather History Calendar

Precipitation Actual month total 3.49 Normal Month Total: 3.68
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Rain
Actual:
61 | 46 0.09
Average:
52 | 33 0.11
Partly Cloudy
Actual:
61 | 41 0.00
Average:
53 | 34 0.11
Thunderstorm
Actual:
70 | 35 0.15
Average:
53 | 34 0.11
Snow
Actual:
35 | 28 T
Average:
53 | 34 0.12
Partly Cloudy
Actual:
40 | 27 0.00
Average:
54 | 34 0.12
Partly Cloudy
Actual:
36 | 23 0.00
Average:
54 | 35 0.12
Mostly Cloudy
Actual:
32 | 22 0.00
Average:
55 | 35 0.12
Snow
Actual:
40 | 28 T
Average:
55 | 35 0.12
Snow
Actual:
43 | 29 T
Average:
55 | 36 0.12
Partly Cloudy
Actual:
52 | 26 0.00
Average:
56 | 36 0.12
Snow
Actual:
43 | 33 1.15
Average:
56 | 36 0.12
Snow
Actual:
38 | 33 0.09
Average:
57 | 36 0.12
Partly Cloudy
Actual:
51 | 32 0.00
Average:
57 | 37 0.13
Mostly Cloudy
Actual:
49 | 35 0.00
Average:
57 | 37 0.13
Scattered Clouds
Actual:
58 | 29 0.00
Average:
58 | 37 0.13
Clear
Actual:
62 | 32 0.00
Average:
58 | 38 0.13
Scattered Clouds
Actual:
70 | 36 T
Average:
59 | 38 0.13
Rain
Actual:
50 | 39 T
Average:
59 | 38 0.13
Partly Cloudy
Actual:
58 | 41 T
Average:
59 | 39 0.13
Scattered Clouds
Actual:
68 | 38 0.00
Average:
60 | 39 0.13
Scattered Clouds
Actual:
77 | 43 0.00
Average:
60 | 39 0.13
Rain
Actual:
83 | 52 T
Average:
61 | 40 0.13
Mostly Cloudy
Actual:
70 | 51 0.00
Average:
61 | 40 0.13
Rain
Actual:
68 | 44 0.30
Average:
61 | 40 0.12
Rain
Actual:
49 | 45 1.06
Average:
62 | 41 0.12
Rain
Actual:
56 | 45 0.49
Average:
62 | 41 0.12
Rain
Actual:
53 | 43 T
Average:
63 | 41 0.12
Scattered Clouds
Actual:
73 | 39 0.00
Average:
63 | 41 0.12
Thunderstorm
Actual:
82 | 45 0.15
Average:
63 | 42 0.12
Thunderstorm
Actual:
67 | 51 0.01
Average:
64 | 42 0.12
 

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

2007 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Apr high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 61 54 46 53 42 37 83 70 57 29.79 29.68 29.58 10 10 8 32 17 41 0.09 Rain
2 61 51 41 45 39 36 82 64 46 29.99 29.93 29.81 10 10 10 17 9 24 0.00  
3 70 53 35 56 45 30 89 73 57 29.91 29.77 29.66 10 9 2 31 15 38 0.15 Rain , Thunderstorm
4 35 32 28 27 19 15 75 62 49 30.14 30.01 29.82 10 10 10 30 21 38 T Snow
5 40 34 27 17 13 10 58 44 30 30.18 30.15 30.11 10 10 10 25 16 32 0.00  
6 36 30 23 11 7 3 55 42 28 30.11 30.04 29.96 10 10 10 24 15 29 0.00  
7 32 27 22 14 10 5 57 50 42 30.06 30.01 29.98 10 10 10 21 14 29 0.00  
8 40 34 28 24 18 14 69 55 41 30.12 30.08 30.03 10 10 10 13 7 20 T Snow
9 43 36 29 27 23 19 78 59 39 30.10 30.07 30.02 10 10 10 14 6 20 T Snow
10 52 39 26 28 24 19 92 62 31 30.08 29.99 29.86 10 9 6 22 11 30 0.00  
11 43 38 33 36 33 25 100 75 49 29.86 29.53 29.34 10 2 0 26 15 38 1.15 Rain , Snow
12 38 36 33 34 30 28 96 83 70 30.06 29.71 29.39 10 8 2 22 13 25 0.09 Rain , Snow
13 51 42 32 28 25 22 78 55 32 30.25 30.17 30.08 10 10 10 16 8 25 0.00  
14 49 42 35 29 22 17 64 48 31 30.12 30.00 29.92 10 10 10 20 9 23 0.00  
15 58 44 29 27 21 15 59 43 26 30.02 29.95 29.91 10 10 10 22 8 35 0.00  
16 62 47 32 28 23 20 64 43 21 30.14 30.05 29.99 10 10 10 17 9 23 0.00  
17 70 53 36 42 29 15 65 47 28 29.99 29.94 29.88 10 10 10 23 11 26 T  
18 50 45 39 39 36 33 89 75 61 30.01 29.96 29.92 10 10 10 21 13 35 T Rain
19 58 50 41 39 37 34 82 65 47 30.18 30.08 29.99 10 9 2 17 9 31 T  
20 68 53 38 39 36 34 79 57 34 30.29 30.24 30.19 10 10 10 14 6 24 0.00  
21 77 60 43 42 39 36 71 49 27 30.26 30.16 30.04 10 10 8 18 10 23 0.00  
22 83 68 52 49 45 41 68 47 26 30.05 29.94 29.80 10 10 10 30 17 37 T Rain
23 70 61 51 53 48 42 72 58 44 30.06 29.88 29.70 10 10 9 31 16 39 0.00  
24 68 56 44 45 41 38 86 62 37 30.14 30.08 30.01 10 10 7 22 10 28 0.30 Rain
25 49 47 45 46 44 42 93 90 86 29.98 29.94 29.90 10 6 2 28 17 32 1.06 Rain
26 56 51 45 51 46 43 100 93 86 29.87 29.69 29.59 8 2 0 15 9 25 0.49 Fog , Rain
27 53 48 43 45 43 41 93 82 71 29.92 29.78 29.65 10 9 2 14 9 18 T Rain
28 73 56 39 50 42 36 100 64 27 29.98 29.90 29.87 10 7 1 23 9 30 0.00  
29 82 64 45 58 46 40 80 53 26 30.03 29.95 29.87 10 10 10 35 11 43 0.15 Rain , Thunderstorm
30 67 59 51 61 44 35 84 59 34 30.00 29.94 29.90 10 9 2 28 11 36 0.01 Rain , Thunderstorm