Weather History for St. Charles, MO

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 60 °F 46 °F 33 °F
Mean Temperature 52 °F 39 °F 26 °F
Min Temperature 45 °F 31 °F 16 °F
Degree Days  
Heating Degree Days (base 65) 39 27 12 824
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 4
Dew Point  
Dew Point 55 °F 30 °F 9 °F
Precipitation  
Precipitation 0.68 in 0.11 in 0.00 in 3.26 in
Snowdepth - - - -
Wind  
Wind 30 mph 6 mph 0 mph
Gust Wind 37 mph 24 mph 18 mph
Sea Level Pressure  
Sea Level Pressure 30.63 in 30.17 in 29.55 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 19, 2011 Rise Set
Actual Time 7:15 AM CST 4:41 PM CST
Civil Twilight 6:45 AM CST 5:11 PM CST
Nautical Twilight 6:12 AM CST 5:45 PM CST
Astronomical Twilight 5:39 AM CST 6:17 PM CST
Moon 1:27 AM CST (12/19) 12:39 PM CST (12/19)
Length of Visible Light 10h 26m
Length of Day
9h 26m
Waning Crescent, 31% of the Moon is Illuminated
Dec 19
Waning Crescent
Dec 24
New
Jan 1
First Quarter
Jan 9
Full
Jan 16
Last Quarter

Weather History Calendar

Precipitation Actual month total 3.26 Average Month Total: 2.90
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
50 | 28 0.00
Average:
- | - 0.09
Rain
Actual:
45 | 33 0.00
Average:
- | - 0.04
Rain
Actual:
60 | 45 0.24
Average:
- | - 0.25
Rain
Actual:
53 | 34 0.02
Average:
- | - 0.15
Overcast
Actual:
33 | 32 0.00
Average:
- | - 0.06
Snow
Actual:
35 | 30 0.00
Average:
- | - 0.09
Snow
Actual:
37 | 27 0.00
Average:
- | - 0.08
Partly Cloudy
Actual:
42 | 26 0.00
Average:
- | - 0.04
Partly Cloudy
Actual:
37 | 23 0.00
Average:
- | - 0.07
Clear
Actual:
36 | 16 0.00
Average:
- | - 0.08
Clear
Actual:
48 | 21 0.00
Average:
- | - 0.14
Rain
Actual:
48 | 24 0.01
Average:
- | - 0.10
Rain
Actual:
46 | 41 0.51
Average:
- | - 0.03
Rain
Actual:
59 | 44 0.45
Average:
- | - 0.12
Rain
Actual:
57 | 34 0.09
Average:
- | - 0.24
Clear
Actual:
37 | 25 0.00
Average:
- | - 0.07
Scattered Clouds
Actual:
45 | 25 0.00
Average:
- | - 0.03
Scattered Clouds
Actual:
53 | 24 0.01
Average:
- | - 0.02
Rain
Actual:
54 | 44 0.68
Average:
- | - 0.06
Rain
Actual:
46 | 44 0.41
Average:
- | - 0.09
Rain
Actual:
45 | 33 0.03
Average:
- | - 0.09
Fog
Actual:
39 | 32 0.00
Average:
- | - 0.07
Partly Cloudy
Actual:
36 | 28 0.00
Average:
- | - 0.10
Clear
Actual:
44 | 24 0.00
Average:
- | - 0.11
Clear
Actual:
51 | 27 0.01
Average:
- | - 0.08
Rain
Actual:
39 | 24 0.55
Average:
- | - 0.03
Snow
Actual:
43 | 32 0.25
Average:
- | - 0.05
Clear
Actual:
42 | 28 0.00
Average:
- | - 0.17
Rain
Actual:
57 | 34 0.00
Average:
- | - 0.04
Rain
Actual:
53 | 43 0.00
Average:
- | - 0.20
Clear
Actual:
57 | 30 0.00
Average:
- | - 0.11
 

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

2011 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 50 39 28 34 28 23 89 70 41 30.31 30.26 30.19 10 10 10 8 4 - 0.00  
2 45 39 33 37 31 26 87 71 58 30.48 30.40 30.32 10 7 5 12 8 - 0.00 Rain
3 60 52 45 47 40 35 83 67 46 30.30 30.15 29.97 10 10 6 22 9 29 0.24 Rain
4 53 44 34 52 38 28 94 82 74 30.29 30.12 29.93 10 10 8 17 10 - 0.02 Rain
5 33 32 32 27 25 24 80 75 72 30.33 30.29 30.24 10 9 8 20 12 26 0.00  
6 35 32 30 30 27 24 87 82 76 30.28 30.23 30.18 8 5 2 13 9 18 0.00 Snow
7 37 32 27 26 18 9 85 60 32 30.22 30.19 30.15 10 9 5 15 9 - 0.00 Snow
8 42 34 26 29 23 18 82 64 45 30.30 30.23 30.19 10 10 10 8 4 - 0.00  
9 37 30 23 30 23 11 86 69 46 30.54 30.36 30.21 10 9 5 12 7 - 0.00  
10 36 26 16 20 15 9 84 64 44 30.63 30.55 30.50 10 10 10 8 2 - 0.00  
11 48 34 21 28 22 17 85 70 46 30.51 30.45 30.38 10 10 8 10 6 - 0.00  
12 48 36 24 37 25 19 82 63 31 30.43 30.38 30.33 10 10 8 9 6 - 0.01 Rain
13 46 44 41 43 41 37 93 90 81 30.42 30.34 30.20 10 4 2 8 4 - 0.51 Rain
14 59 52 44 55 49 43 96 90 69 30.19 29.97 29.80 10 6 1 15 8 21 0.45 Rain
15 57 46 34 55 37 25 94 74 62 30.36 30.07 29.78 10 9 4 25 13 31 0.09 Rain
16 37 31 25 26 24 22 88 72 53 30.46 30.40 30.35 10 10 10 8 4 - 0.00  
17 45 35 25 30 26 22 92 76 52 30.40 30.33 30.28 10 9 3 14 4 - 0.00  
18 53 38 24 35 29 22 93 72 48 30.30 30.20 30.00 10 8 2 9 3 - 0.01  
19 54 49 44 46 42 34 100 81 54 30.14 30.06 29.98 10 6 2 8 3 - 0.68 Rain
20 46 45 44 45 44 42 100 92 87 30.10 29.88 29.73 9 3 0 14 7 - 0.41 Fog , Rain
21 45 39 33 43 38 32 96 86 71 30.01 29.85 29.70 10 5 0 22 5 28 0.03 Fog , Rain
22 39 36 32 36 32 30 96 89 79 30.30 30.09 30.01 8 4 0 14 3 22 0.00 Fog
23 36 32 28 29 25 22 82 74 59 30.45 30.37 30.32 10 10 9 10 8 - 0.00  
24 44 34 24 30 25 20 91 74 49 30.43 30.37 30.33 10 10 9 8 2 - 0.00  
25 51 39 27 29 26 23 89 69 38 30.40 30.34 30.30 10 10 7 14 3 - 0.01  
26 39 32 24 34 28 21 96 84 63 30.37 30.18 29.95 10 7 2 8 3 - 0.55 Rain
27 43 38 32 34 31 25 100 83 61 30.11 29.86 29.75 10 7 1 20 6 30 0.25 Snow
28 42 35 28 32 28 24 89 79 67 30.13 30.04 29.90 10 10 9 8 3 - 0.00  
29 57 46 34 39 34 28 82 68 42 29.88 29.75 29.67 10 10 9 14 5 18 0.00 Rain
30 53 49 43 41 37 33 80 64 47 29.92 29.69 29.55 10 10 10 30 12 37 0.00 Rain
31 57 44 30 38 34 28 96 70 44 30.01 29.88 29.67 10 9 1 21 7 26 0.00