Chicago Midway, IL

4:11 AM CST on January 18, 2018 (GMT -0600)
Chicago-Midway

Weather History for KMDW - September, 2012

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 89 °F 75 °F 60 °F
Mean Temperature 80 °F 66 °F 53 °F
Min Temperature 75 °F 57 °F 42 °F
Degree Days  
Heating Degree Days (base 65) 12 2 0 73
Cooling Degree Days (base 65) 15 4 0 109
Growing Degree Days (base 50) 30 16 2 472
Dew Point  
Dew Point 72 °F 50 °F 28 °F
Precipitation  
Precipitation 0.33 in 0.06 in 0.00 in 1.63 in
Snowdepth - - - -
Wind  
Wind 39 mph 9 mph 0 mph
Gust Wind 47 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.35 in 30.00 in 29.72 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 04, 2012 Rise Set
Actual Time 6:20 AM CDT 7:18 PM CDT
Civil Twilight 5:51 AM CDT 7:46 PM CDT
Nautical Twilight 5:18 AM CDT 8:20 PM CDT
Astronomical Twilight 4:42 AM CDT 8:55 PM CDT
Moon 9:06 PM CDT (9/4) 10:31 AM CDT (9/4)
Length of Visible Light 13h 54m
Length of Day
12h 58m
Waning Gibbous, 83% of the Moon is Illuminated
Sep 4
Waning Gibbous
Sep 8
Last Quarter
Sep 15
New
Sep 22
First Quarter
Sep 29
Full

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 78 76 73 72 67 57 89 76 50 30.07 30.00 29.93 10 10 5 18 10 23 0.25 Rain
2 81 78 75 72 70 69 89 78 67 29.95 29.89 29.85 10 10 8 18 12 24 0.00  
3 87 80 73 70 69 68 85 70 48 29.93 29.88 29.84 10 10 7 13 6 17 0.00  
4 89 79 68 72 69 57 94 72 49 29.94 29.85 29.80 10 9 2 39 7 47 0.33 Rain , Thunderstorm
5 86 76 66 64 63 60 90 67 41 29.95 29.81 29.74 10 9 2 22 6 28 0.18 Rain , Thunderstorm
6 86 78 70 67 61 52 81 58 32 29.90 29.87 29.80 10 10 10 13 6 18 0.00  
7 78 70 61 66 59 53 84 68 48 29.92 29.81 29.74 10 10 4 29 9 35 0.20 Rain
8 73 65 56 55 48 44 82 56 26 29.90 29.85 29.81 10 10 5 20 11 25 0.23 Rain
9 72 64 56 57 52 44 90 67 34 30.14 30.00 29.83 10 10 9 18 10 23 0.00  
10 77 66 54 50 47 44 77 50 22 30.22 30.15 30.09 10 10 10 13 5 18 0.00  
11 84 72 59 55 51 46 67 47 24 30.16 30.10 30.04 10 10 10 23 10 31 0.00  
12 87 75 63 57 54 51 70 48 24 30.15 30.11 30.06 10 10 10 18 10 24 0.00  
13 72 64 56 59 55 51 94 71 56 30.32 30.24 30.13 10 9 4 20 10 24 0.13 Rain
14 75 65 54 52 45 39 86 52 19 30.35 30.30 30.26 10 10 10 15 6 18 T  
15 79 67 55 48 44 37 72 45 20 30.31 30.22 30.13 10 10 10 12 4 15 0.00  
16 78 67 56 50 45 41 72 44 23 30.12 30.05 29.96 10 10 10 15 6 20 0.00  
17 79 69 59 61 56 49 88 68 34 29.96 29.83 29.72 10 10 7 28 9 38 0.17 Rain , Thunderstorm
18 64 57 50 52 38 30 82 52 19 30.04 29.90 29.77 10 10 10 24 12 35 0.00  
19 74 61 47 43 38 34 74 44 17 30.09 29.97 29.84 10 10 10 26 14 36 0.00  
20 72 64 56 49 39 30 72 40 15 29.93 29.88 29.83 10 10 10 21 9 24 0.00  
21 61 57 52 51 45 34 89 66 36 29.94 29.87 29.79 10 10 4 16 7 20 0.13 Rain
22 60 54 47 51 40 33 90 63 32 30.18 29.98 29.81 10 10 5 26 11 35 0.01 Rain
23 62 53 43 39 35 28 76 53 21 30.27 30.23 30.18 10 10 10 15 6 35 0.00  
24 71 57 42 37 33 29 71 41 11 30.23 30.08 29.92 10 10 10 23 11 28 0.00  
25 77 66 54 61 50 38 87 58 38 29.92 29.86 29.81 10 10 8 15 8 21 0.00  
26 69 63 57 61 53 42 94 70 42 30.17 29.99 29.85 10 8 4 17 10 21 0.00  
27 68 59 49 49 45 40 77 59 41 30.21 30.17 30.14 10 10 10 17 8 21 0.00  
28 67 60 52 54 49 45 77 66 37 30.17 30.14 30.11 10 10 10 18 8 24 0.00  
29 79 64 49 52 45 39 86 57 14 30.12 30.04 29.95 10 10 7 17 6 21 0.00  
30 67 60 52 51 46 39 86 63 27 29.99 29.95 29.93 10 10 10 18 9 23 0.00