Mount Vernon, IL

7:53 PM CST on December 14, 2017 (GMT -0600)
Mount Vernon

Weather History for KMVN - September, 2015

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Month of September, 2015

  Max Avg Min Sum
Temperature  
Max Temperature 95 °F 82 °F 64 °F
Mean Temperature 80 °F 70 °F 56 °F
Min Temperature 66 °F 57 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 9 1 0 29
Cooling Degree Days (base 65) 16 6 0 167
Growing Degree Days (base 50) 30 20 6 587
Dew Point  
Dew Point 72 °F 58 °F 37 °F
Precipitation  
Precipitation 1.40 in 0.11 in 0.00 in 3.25 in
Snowdepth - - - -
Wind  
Wind 20 mph 3 mph 0 mph
Gust Wind 23 mph 18 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.29 in 30.06 in 29.83 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 09, 2015 Rise Set
Actual Time 6:31 AM CDT 7:13 PM CDT
Civil Twilight 6:04 AM CDT 7:39 PM CDT
Nautical Twilight 5:33 AM CDT 8:11 PM CDT
Astronomical Twilight 5:00 AM CDT 8:43 PM CDT
Moon 3:10 AM CDT (9/9) 5:10 PM CDT (9/9)
Length of Visible Light 13h 35m
Length of Day
12h 41m
Waning Crescent, 11% of the Moon is Illuminated
Sep 9
Waning Crescent
Sep 13
New
Sep 21
First Quarter
Sep 27
Full
Oct 4
Last Quarter

Daily Weather History & Observations

2015 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 91 78 66 70 66 61 88 70 49 30.15 30.10 30.07 10 8 0 9 2 - 0.00  
2 91 76 62 70 66 57 88 70 46 30.15 30.08 30.00 10 6 0 9 2 - 0.00  
3 93 78 64 70 65 59 88 70 46 30.05 30.00 29.93 10 7 2 10 2 - 0.00  
4 95 80 64 70 66 59 88 68 36 30.07 30.02 29.98 10 7 2 8 1 - 0.00  
5 95 80 66 70 66 61 88 67 39 30.14 30.08 30.04 10 7 2 6 1 - 0.00  
6 95 80 66 70 66 61 88 66 39 30.12 30.07 30.02 10 8 2 7 1 - 0.00  
7 93 80 66 72 66 61 88 68 41 30.09 30.03 29.98 10 8 2 14 3 17 0.00  
8 93 80 66 70 65 61 88 68 41 30.03 29.96 29.87 10 9 2 20 4 23 0.20  
9 78 71 64 68 65 59 88 79 61 29.98 29.95 29.91 10 8 3 10 2 - 1.21  
10 84 71 60 64 61 55 88 71 51 29.98 29.93 29.85 10 8 0 9 1 - 0.00  
11 73 66 59 61 57 52 88 77 57 30.02 29.95 29.88 10 9 1 10 2 18 0.26  
12 64 56 48 52 48 43 88 72 52 30.10 30.05 30.01 10 10 3 8 3 20 0.06  
13 73 58 44 50 44 37 87 65 35 30.15 30.10 30.06 10 9 1 8 1 - 0.00  
14 80 62 46 55 50 41 87 66 42 30.21 30.16 30.09 10 10 10 17 3 18 0.00  
15 82 66 50 55 51 45 88 62 37 30.29 30.24 30.20 10 10 9 14 2 17 0.00  
16 84 67 50 63 55 45 82 66 40 30.29 30.22 30.15 10 10 7 13 3 17 0.00  
17 86 72 57 66 60 52 88 66 48 30.14 30.07 29.97 10 10 6 16 4 20 0.00  
18 89 76 64 70 64 59 83 66 49 29.96 29.91 29.85 10 10 5 15 7 20 0.00  
19 73 66 59 64 56 50 78 65 50 30.10 29.99 29.83 10 10 2 13 5 16 0.01 Thunderstorm
20 71 60 50 55 50 43 82 67 53 30.18 30.12 30.08 10 8 1 9 5 - 0.00  
21 78 62 46 54 48 39 87 67 36 30.15 30.10 30.07 10 8 1 7 1 - 0.00  
22 82 64 46 57 50 43 88 66 34 30.21 30.16 30.11 10 9 1 6 1 - 0.00  
23 84 66 48 57 52 45 88 65 37 30.24 30.18 30.14 10 8 0 9 2 - 0.00  
24 84 68 51 61 52 46 88 66 35 30.21 30.16 30.13 10 10 7 12 3 - 0.00  
25 84 70 55 59 54 50 82 61 35 30.15 30.11 30.06 10 10 10 9 5 - 0.00  
26 75 66 57 63 57 52 83 72 61 30.15 30.11 30.08 10 10 6 10 5 - 0.00  
27 75 68 62 64 61 57 88 78 69 30.12 30.07 30.01 10 9 1 7 4 - 0.03  
28 82 70 57 66 61 52 88 75 54 30.06 30.00 29.95 10 8 1 6 0 - 0.08  
29 69 66 62 64 63 55 88 83 73 30.00 29.95 29.91 10 7 2 9 2 - 1.40  
30 71 64 57 54 50 43 77 63 43 30.12 30.06 30.00 10 10 7 13 8 23 0.00