Weather History for St. Charles, MO

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 98 °F 83 °F 71 °F
Mean Temperature 84 °F 71 °F 60 °F
Min Temperature 71 °F 59 °F 46 °F
Degree Days  
Heating Degree Days (base 65) 4 0 0 14
Cooling Degree Days (base 65) 20 6 0 191
Growing Degree Days (base 50) 34 21 10 626
Dew Point  
Dew Point 76 °F 60 °F 33 °F
Precipitation  
Precipitation 1.06 in 0.06 in 0.00 in 1.88 in
Snowdepth - - - -
Wind  
Wind 21 mph 4 mph 0 mph
Gust Wind 28 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.28 in 30.00 in 29.75 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 30, 2013 Rise Set
Actual Time 6:56 AM CDT 6:45 PM CDT
Civil Twilight 6:30 AM CDT 7:12 PM CDT
Nautical Twilight 5:59 AM CDT 7:42 PM CDT
Astronomical Twilight 5:28 AM CDT 8:14 PM CDT
Moon 2:36 AM CDT (9/30) 4:14 PM CDT (9/30)
Length of Visible Light 12h 41m
Length of Day
11h 48m
Waning Crescent, 19% of the Moon is Illuminated
Sep 30
Waning Crescent
Oct 4
New
Oct 11
First Quarter
Oct 18
Full
Oct 26
Last Quarter

Weather History Calendar

Precipitation Actual month total 1.88 Average Month Total: 3.60
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Rain
Actual:
90 | 71 0.04
Average:
- | - 0.12
Scattered Clouds
Actual:
84 | 66 0.00
Average:
- | - 0.13
Clear
Actual:
81 | 59 0.00
Average:
- | - 0.20
Clear
Actual:
86 | 57 0.00
Average:
- | - 0.04
Fog
Actual:
89 | 57 0.00
Average:
- | - 0.02
Clear
Actual:
89 | 64 0.00
Average:
- | - 0.04
Fog
Actual:
93 | 60 0.00
Average:
- | - 0.02
Rain
Actual:
84 | 71 0.30
Average:
- | - 0.10
Scattered Clouds
Actual:
98 | 71 0.00
Average:
- | - 0.23
Clear
Actual:
98 | 70 0.00
Average:
- | - 0.04
Fog
Actual:
95 | 64 0.00
Average:
- | - 0.14
Rain
Actual:
84 | 66 0.00
Average:
- | - 0.08
Scattered Clouds
Actual:
75 | 57 0.00
Average:
- | - 0.08
Clear
Actual:
75 | 50 0.00
Average:
- | - 0.29
Rain
Actual:
82 | 52 0.02
Average:
- | - 0.15
Partly Cloudy
Actual:
73 | 57 0.00
Average:
- | - 0.21
Rain
Actual:
71 | 57 0.03
Average:
- | - 0.30
Rain
Actual:
88 | 64 0.18
Average:
- | - 0.14
Scattered Clouds
Actual:
91 | 69 0.00
Average:
- | - 0.11
Rain
Actual:
72 | 59 1.06
Average:
- | - 0.13
Clear
Actual:
72 | 53 0.00
Average:
- | - 0.13
Fog
Actual:
75 | 46 0.01
Average:
- | - 0.03
Clear
Actual:
75 | 50 0.00
Average:
- | - 0.32
Rain
Actual:
82 | 52 0.22
Average:
- | - 0.15
Partly Cloudy
Actual:
82 | 62 0.00
Average:
- | - 0.06
Fog
Actual:
84 | 57 0.01
Average:
- | - 0.05
Scattered Clouds
Actual:
84 | 57 0.00
Average:
- | - 0.15
Rain
Actual:
86 | 57 0.00
Average:
- | - 0.00
Rain
Actual:
75 | 53 0.01
Average:
- | - 0.08
Fog
Actual:
79 | 46 0.00
Average:
- | - 0.06
 

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

2013 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 90 80 71 76 72 68 100 83 59 29.83 29.79 29.75 10 7 0 16 2 26 0.04 Fog , Rain
2 84 74 66 64 61 58 81 63 46 29.96 29.92 29.84 10 10 10 10 8 - 0.00  
3 81 70 59 62 58 54 90 70 45 30.09 30.03 29.97 10 10 10 8 4 - 0.00  
4 86 72 57 66 59 55 96 76 38 30.16 30.11 30.07 10 8 1 6 1 - 0.00  
5 89 72 57 66 61 54 100 79 32 30.19 30.15 30.12 10 6 0 7 1 - 0.00 Fog
6 89 76 64 66 63 57 93 68 35 30.17 30.10 30.02 10 10 6 9 2 - 0.00  
7 93 76 60 68 63 59 96 75 32 30.05 29.99 29.89 10 7 0 12 1 - 0.00 Fog
8 84 78 71 73 71 68 100 86 69 30.00 29.92 29.89 10 7 2 12 4 - 0.30 Rain
9 98 84 71 73 70 65 97 74 34 29.96 29.92 29.88 10 7 2 10 4 - 0.00  
10 98 84 70 73 68 59 100 74 28 30.07 30.02 29.96 10 7 1 12 1 18 0.00  
11 95 80 64 74 67 63 100 73 34 30.12 30.06 30.00 10 7 0 6 1 - 0.00 Fog
12 84 76 66 69 62 48 85 63 44 30.08 30.03 29.97 10 10 9 13 5 18 0.00 Rain
13 75 66 57 56 49 44 78 58 35 30.15 30.10 30.07 10 10 10 12 9 17 0.00  
14 75 62 50 49 44 33 86 58 22 30.17 30.10 30.04 10 10 10 12 5 - 0.00  
15 82 66 52 65 55 48 94 70 40 30.10 30.04 29.98 10 10 8 10 4 16 0.02 Rain
16 73 65 57 63 56 53 94 77 48 30.28 30.21 30.12 10 10 7 16 9 21 0.00  
17 71 64 57 65 58 54 93 82 68 30.24 30.17 30.06 10 9 5 9 5 - 0.03 Rain
18 88 76 64 70 66 62 97 81 53 30.07 30.02 29.94 10 6 2 12 4 - 0.18 Rain
19 91 80 69 71 68 66 94 72 45 29.98 29.92 29.82 10 8 2 15 6 22 0.00  
20 72 66 59 68 65 52 96 88 73 29.93 29.90 29.86 10 8 1 13 5 20 1.06 Rain
21 72 62 53 54 51 47 100 75 41 29.97 29.93 29.90 10 9 1 12 6 21 0.00  
22 75 60 46 57 49 45 100 86 41 30.03 29.96 29.93 10 5 0 9 1 - 0.01 Fog
23 75 62 50 54 50 47 93 69 36 30.04 29.97 29.92 10 10 6 14 6 20 0.00  
24 82 66 52 64 58 49 93 75 47 29.95 29.86 29.78 10 10 2 16 7 22 0.22 Rain
25 82 72 62 67 64 61 100 85 50 29.88 29.84 29.79 10 7 1 9 4 - 0.00  
26 84 70 57 65 60 57 100 85 41 30.01 29.94 29.86 10 5 0 10 2 - 0.01 Fog
27 84 70 57 63 56 52 94 67 37 30.10 30.04 29.99 10 8 3 14 7 18 0.00  
28 86 70 57 70 61 54 94 72 43 30.03 29.98 29.92 10 10 6 21 8 28 0.00 Rain
29 75 65 53 63 54 45 96 74 34 30.07 30.02 29.97 10 10 9 14 8 - 0.01 Rain
30 79 62 46 61 51 45 100 87 50 29.99 29.96 29.87 10 6 0 10 1 - 0.00 Fog