Weather History for St. Charles, MO

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 75 °F 48 °F 32 °F
Mean Temperature 66 °F 39 °F 27 °F
Min Temperature 57 °F 31 °F 17 °F
Degree Days  
Heating Degree Days (base 65) 38 26 0 799
Cooling Degree Days (base 65) 1 0 0 1
Growing Degree Days (base 50) 16 1 0 32
Dew Point  
Dew Point 60 °F 32 °F 14 °F
Precipitation  
Precipitation 0.66 in 0.09 in 0.00 in 2.83 in
Snowdepth - - - -
Wind  
Wind 34 mph 7 mph 0 mph
Gust Wind 54 mph 25 mph 18 mph
Sea Level Pressure  
Sea Level Pressure 30.44 in 30.01 in 29.22 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 22, 2012 Rise Set
Actual Time 7:17 AM CST 4:43 PM CST
Civil Twilight 6:47 AM CST 5:13 PM CST
Nautical Twilight 6:14 AM CST 5:47 PM CST
Astronomical Twilight 5:41 AM CST 6:19 PM CST
Moon 12:59 PM CST (12/22) 2:04 AM CST (12/22)
Length of Visible Light 10h 26m
Length of Day
9h 26m
Waxing Gibbous, 74% of the Moon is Illuminated
Dec 22
Waxing Gibbous
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Weather History Calendar

Precipitation Actual month total 2.83 Average Month Total: 2.90
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
68 | 37 0.00
Average:
- | - 0.09
Partly Cloudy
Actual:
72 | 53 0.00
Average:
- | - 0.04
Partly Cloudy
Actual:
75 | 57 0.00
Average:
- | - 0.25
Rain
Actual:
62 | 33 0.50
Average:
- | - 0.15
Fog
Actual:
52 | 33 0.01
Average:
- | - 0.06
Rain
Actual:
52 | 33 0.00
Average:
- | - 0.09
Rain
Actual:
51 | 44 0.07
Average:
- | - 0.08
Rain
Actual:
46 | 42 0.17
Average:
- | - 0.04
Thunderstorm
Actual:
48 | 35 0.66
Average:
- | - 0.07
Mostly Cloudy
Actual:
35 | 26 0.00
Average:
- | - 0.08
Clear
Actual:
39 | 19 0.00
Average:
- | - 0.14
Clear
Actual:
50 | 23 0.00
Average:
- | - 0.10
Clear
Actual:
55 | 27 0.00
Average:
- | - 0.03
Rain
Actual:
54 | 28 0.05
Average:
- | - 0.12
Rain
Actual:
62 | 42 0.50
Average:
- | - 0.24
Partly Cloudy
Actual:
51 | 37 0.00
Average:
- | - 0.07
Rain
Actual:
39 | 37 0.02
Average:
- | - 0.03
Clear
Actual:
59 | 30 0.00
Average:
- | - 0.02
Rain
Actual:
46 | 30 0.08
Average:
- | - 0.06
Thunderstorm
Actual:
55 | 26 0.59
Average:
- | - 0.09
Clear
Actual:
36 | 23 0.00
Average:
- | - 0.09
Clear
Actual:
44 | 19 0.00
Average:
- | - 0.07
Scattered Clouds
Actual:
45 | 28 0.00
Average:
- | - 0.10
Mostly Cloudy
Actual:
33 | 23 0.00
Average:
- | - 0.11
Mostly Cloudy
Actual:
32 | 23 0.00
Average:
- | - 0.08
Overcast
Actual:
32 | 28 0.00
Average:
- | - 0.03
Partly Cloudy
Actual:
33 | 27 0.00
Average:
- | - 0.05
Overcast
Actual:
35 | 30 0.00
Average:
- | - 0.17
Snow
Actual:
33 | 19 0.00
Average:
- | - 0.04
Clear
Actual:
42 | 17 0.00
Average:
- | - 0.20
Snow
Actual:
37 | 28 0.18
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

2012 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 68 52 37 54 46 35 93 77 61 30.11 30.02 29.93 10 8 2 16 8 - 0.00  
2 72 62 53 58 54 50 93 78 57 30.03 29.98 29.92 10 10 6 15 6 18 0.00  
3 75 66 57 60 57 54 93 73 52 29.99 29.92 29.84 10 9 6 25 10 31 0.00  
4 62 48 33 55 42 34 100 85 49 30.31 30.17 29.94 10 6 0 15 7 23 0.50 Fog , Rain
5 52 42 33 41 35 31 100 83 54 30.39 30.29 30.16 10 7 0 10 2 - 0.01 Fog
6 52 42 33 42 38 30 92 82 61 30.12 30.01 29.93 10 9 6 10 7 - 0.00 Rain
7 51 48 44 48 46 41 100 94 86 29.93 29.86 29.82 10 4 1 7 4 - 0.07 Rain
8 46 44 42 46 42 37 100 91 81 30.01 29.94 29.86 10 5 2 12 5 - 0.17 Rain
9 48 42 35 46 41 29 100 89 75 29.95 29.86 29.78 10 5 0 20 7 24 0.66 Fog , Rain , Thunderstorm
10 35 30 26 28 21 19 75 71 64 30.09 29.98 29.90 10 10 10 18 14 24 0.00  
11 39 29 19 25 21 17 92 74 43 30.23 30.14 30.09 10 10 10 12 5 - 0.00  
12 50 36 23 31 24 20 96 73 32 30.35 30.28 30.23 10 9 2 12 2 - 0.00  
13 55 41 27 30 26 23 85 67 31 30.32 30.26 30.18 10 10 9 13 7 - 0.00  
14 54 41 28 39 32 25 89 73 52 30.23 30.13 29.96 10 10 10 12 6 - 0.05 Rain
15 62 52 42 50 44 39 93 84 62 29.94 29.73 29.58 10 8 2 23 11 30 0.50 Rain
16 51 44 37 42 39 36 100 87 68 29.76 29.72 29.67 10 8 1 12 3 - 0.00  
17 39 38 37 37 36 32 93 88 79 29.81 29.72 29.69 9 5 2 14 6 - 0.02 Rain
18 59 44 30 39 33 30 96 73 42 29.93 29.78 29.65 10 8 4 20 6 25 0.00  
19 46 38 30 44 35 28 92 85 76 30.02 29.86 29.52 8 5 2 15 7 - 0.08 Rain
20 55 41 26 52 35 18 96 84 66 29.97 29.49 29.22 10 5 0 34 17 54 0.59 Fog , Rain , Snow , Thunderstorm
21 36 30 23 19 16 14 72 62 41 30.32 30.21 29.99 10 10 10 24 17 32 0.00  
22 44 32 19 27 22 16 89 72 45 30.31 30.15 29.96 10 10 10 12 6 - 0.00  
23 45 36 28 32 28 24 92 78 53 29.98 29.93 29.88 10 10 7 9 5 - 0.00  
24 33 28 23 30 24 14 93 83 68 30.17 29.98 29.83 10 5 2 16 8 21 0.00  
25 32 28 23 25 21 15 85 77 71 30.28 30.15 30.04 10 9 5 21 10 30 0.00  
26 32 30 28 23 22 21 80 73 69 30.19 30.06 29.96 10 10 10 21 16 31 0.00  
27 33 30 27 25 23 21 80 74 64 30.22 30.15 30.09 10 10 9 13 6 - 0.00  
28 35 32 30 30 27 24 92 82 76 30.07 29.99 29.91 10 7 4 8 5 - 0.00  
29 33 27 19 28 21 15 86 74 59 30.36 30.14 29.94 10 8 2 20 11 26 0.00 Snow
30 42 30 17 26 21 14 88 74 49 30.44 30.35 30.21 10 8 4 10 3 - 0.00  
31 37 32 28 34 30 24 100 89 62 30.23 30.13 30.09 10 3 0 15 3 - 0.18 Fog , Snow