Weather History for St. Louis, MO

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Week of September 23, 2012 through September 29, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 81 °F 74 °F 68 °F
Mean Temperature 73 °F 65 °F 56 °F
Min Temperature 66 °F 55 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 9 2 0 16
Cooling Degree Days (base 65) 8 2 0 17
Growing Degree Days (base 50) 22 15 6 104
Dew Point  
Dew Point 70 °F 52 °F 32 °F
Precipitation  
Precipitation 0.97 in 0.18 in 0.00 in 1.24 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 23 mph 5 mph 0 mph
Gust Wind 29 mph 22 mph 20 mph
Sea Level Pressure  
Sea Level Pressure 30.34 in 30.09 in 29.81 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Sep. 27, 2012 Rise Set
Actual Time 6:54 AM CDT 6:49 PM CDT
Civil Twilight 6:27 AM CDT 7:16 PM CDT
Nautical Twilight 5:56 AM CDT 7:47 PM CDT
Astronomical Twilight 5:25 AM CDT 8:18 PM CDT
Moon 5:20 PM CDT (9/27) 4:24 AM CDT (9/27)
Length of Visible Light 12h 48m
Length of Day
11h 55m
Waxing Gibbous, 94% of the Moon is Illuminated
Sep 27
Waxing Gibbous
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New
Oct 21
First Quarter

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  
23 68 56 44 41 37 32 77 52 27 30.34 30.28 30.23 10 10 10 15 2 20 0.00  
24 74 60 45 47 41 35 82 55 27 30.26 30.13 29.94 10 10 10 17 8 21 0.00  
25 81 71 61 70 61 46 93 72 51 29.96 29.87 29.81 10 8 1 23 8 29 0.97 Rain , Thunderstorm
26 79 73 66 65 63 62 87 74 60 30.07 29.98 29.91 10 9 2 16 5 23 0.19 Rain , Thunderstorm
27 71 68 64 64 61 58 93 82 70 30.18 30.13 30.06 10 6 0 9 3 12 0.00 Fog
28 72 64 55 54 49 43 80 59 37 30.20 30.14 30.09 10 9 3 12 5 16 0.08 Rain
29 76 64 52 54 49 44 89 62 35 30.15 30.08 29.99 10 10 9 7 2 22 0.00