Weather History for Mount Vernon, IL

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Week of July 21, 2013 through July 27, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 89 °F 81 °F 75 °F
Mean Temperature 81 °F 72 °F 65 °F
Min Temperature 73 °F 63 °F 55 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 16 7 0 48
Growing Degree Days (base 50) 31 22 15 154
Dew Point  
Dew Point 75 °F 64 °F 52 °F
Precipitation  
Precipitation 0.02 in 0.00 in 0.00 in 0.02 in
Snowdepth - - - -
Wind  
Wind 13 mph 4 mph 0 mph
Gust Wind 17 mph 17 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.13 in 29.96 in 29.78 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Jul. 23, 2013 Rise Set
Actual Time 5:50 AM CDT 8:13 PM CDT
Civil Twilight 5:20 AM CDT 8:43 PM CDT
Nautical Twilight 4:43 AM CDT 9:20 PM CDT
Astronomical Twilight 4:02 AM CDT 10:00 PM CDT
Moon 8:43 PM CDT (7/23) 6:57 AM CDT (7/23)
Length of Visible Light 15h 22m
Length of Day
14h 22m
Full, 99% of the Moon is Illuminated
Jul 23
Full
Jul 29
Last Quarter
Aug 6
New
Aug 14
First Quarter
Aug 20
Full

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Jul high avg low high avg low high avg low high avg low high avg low high avg high sum  
21 84 76 69 73 70 66 94 84 66 29.99 29.93 29.88 10 9 0 9 2 - 0.02 Thunderstorm
22 87 78 71 75 71 70 94 80 62 29.88 29.85 29.81 10 10 6 10 5 - 0.00 Thunderstorm
23 89 81 73 75 73 66 100 77 59 29.91 29.84 29.78 10 10 3 12 4 16 0.00 Thunderstorm
24 75 68 60 66 58 54 88 71 53 30.04 29.98 29.90 10 10 10 13 6 17 0.00  
25 78 68 57 63 57 54 94 73 44 30.13 30.09 30.03 10 10 8 10 2 - 0.00  
26 80 68 57 66 61 54 94 79 54 30.10 30.06 29.99 10 10 9 12 3 - 0.00  
27 75 65 55 66 59 52 94 74 50 30.02 29.98 29.95 10 10 10 12 5 17 0.00