Weather History for St. Louis, MO

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Month of December, 2010

  Max Avg Min Sum
Temperature  
Max Temperature 64 °F 37 °F 19 °F
Mean Temperature 52 °F 31 °F 11 °F
Min Temperature 43 °F 23 °F 3 °F
Degree Days  
Heating Degree Days (base 65) 54 34 13 1069
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 4 0 0 4
Dew Point  
Dew Point 57 °F 23 °F -5 °F
Precipitation  
Precipitation 0.53 in 0.06 in 0.00 in 1.30 in
Snowdepth 3.0 in 0.6 in 0.0 in -
Wind  
Wind 32 mph 9 mph 0 mph
Gust Wind 45 mph 23 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.57 in 30.13 in 29.57 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 30, 2010 Rise Set
Actual Time 7:19 AM CST 4:48 PM CST
Civil Twilight 6:49 AM CST 5:18 PM CST
Nautical Twilight 6:16 AM CST 5:52 PM CST
Astronomical Twilight 5:43 AM CST 6:24 PM CST
Moon 2:39 AM CST (12/30) 12:54 PM CST (12/30)
Length of Visible Light 10h 29m
Length of Day
9h 29m
Waning Crescent, 23% of the Moon is Illuminated
Dec 30
Waning Crescent
Jan 4
New
Jan 12
First Quarter
Jan 19
Full
Jan 26
Last Quarter

Weather History Calendar

Precipitation Actual month total 1.30 Normal Month Total: 2.86
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Snow
Actual:
38 | 26 T
Average:
47 | 31 0.12
Partly Cloudy
Actual:
45 | 26 0.00
Average:
46 | 30 0.11
Rain
Actual:
37 | 26 T
Average:
46 | 30 0.11
Snow
Actual:
38 | 31 T
Average:
46 | 30 0.11
Snow
Actual:
31 | 22 T
Average:
45 | 29 0.11
Snow
Actual:
32 | 17 T
Average:
45 | 29 0.11
Partly Cloudy
Actual:
28 | 16 0.00
Average:
45 | 28 0.10
Scattered Clouds
Actual:
34 | 17 0.00
Average:
44 | 28 0.10
Partly Cloudy
Actual:
40 | 19 0.00
Average:
44 | 28 0.10
Partly Cloudy
Actual:
57 | 32 0.00
Average:
44 | 27 0.10
Snow
Actual:
46 | 21 0.26
Average:
43 | 27 0.10
Snow
Actual:
26 | 10 0.13
Average:
43 | 27 0.10
Scattered Clouds
Actual:
19 | 3 0.00
Average:
43 | 26 0.09
Partly Cloudy
Actual:
22 | 7 0.00
Average:
42 | 26 0.09
Snow
Actual:
30 | 22 0.01
Average:
42 | 26 0.09
Snow
Actual:
30 | 28 T
Average:
42 | 26 0.09
Partly Cloudy
Actual:
31 | 21 0.00
Average:
41 | 25 0.09
Partly Cloudy
Actual:
37 | 20 0.00
Average:
41 | 25 0.09
Snow
Actual:
39 | 23 0.01
Average:
41 | 25 0.09
Mostly Cloudy
Actual:
45 | 31 T
Average:
41 | 24 0.09
Overcast
Actual:
44 | 36 0.00
Average:
40 | 24 0.08
Mostly Cloudy
Actual:
36 | 25 0.00
Average:
40 | 24 0.08
Mostly Cloudy
Actual:
36 | 24 0.00
Average:
40 | 24 0.08
Snow
Actual:
34 | 31 0.25
Average:
40 | 23 0.08
Snow
Actual:
31 | 25 0.05
Average:
39 | 23 0.08
Snow
Actual:
29 | 19 T
Average:
39 | 23 0.08
Snow
Actual:
30 | 18 T
Average:
39 | 23 0.08
Partly Cloudy
Actual:
40 | 19 0.00
Average:
39 | 23 0.08
Rain
Actual:
45 | 28 0.06
Average:
39 | 22 0.08
Overcast
Actual:
57 | 43 T
Average:
38 | 22 0.08
Thunderstorm
Actual:
64 | 40 0.53
Average:
38 | 22 0.07
 

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

2010 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 38 32 26 18 17 15 63 52 40 30.22 30.15 30.06 10 10 9 29 12 36 T Snow
2 45 36 26 25 21 18 78 58 37 30.27 30.21 30.14 10 10 9 10 5 14 0.00  
3 37 32 26 30 27 23 92 78 64 30.28 30.17 30.03 10 7 4 16 7 21 T Rain
4 38 35 31 31 27 22 85 74 63 30.36 30.12 29.93 10 9 6 30 14 38 T Snow
5 31 27 22 22 18 15 75 69 63 30.50 30.43 30.37 10 10 10 18 12 23 T Snow
6 32 25 17 16 13 10 77 62 47 30.46 30.36 30.24 10 9 8 22 10 26 T Snow
7 28 22 16 14 13 11 80 65 50 30.35 30.30 30.22 10 8 7 12 6 16 0.00  
8 34 26 17 15 13 12 80 61 41 30.37 30.33 30.29 10 9 7 12 4 15 0.00  
9 40 30 19 28 20 14 74 61 48 30.31 30.15 30.01 10 9 8 21 10 28 0.00  
10 57 45 32 34 32 28 89 63 36 30.09 30.02 29.95 10 9 7 12 6 16 0.00  
11 46 34 21 45 35 8 96 78 60 29.93 29.73 29.57 10 6 2 32 16 40 0.26 Rain , Snow
12 26 18 10 23 15 5 88 75 61 30.17 29.79 29.61 9 3 1 24 19 45 0.13 Snow
13 19 11 3 4 0 -5 73 63 53 30.37 30.31 30.22 10 10 10 16 9 23 0.00  
14 22 15 7 13 7 2 88 72 56 30.37 30.28 30.16 10 10 8 13 5 16 0.00  
15 30 26 22 26 20 13 92 77 62 30.14 29.89 29.71 10 8 3 21 13 24 0.01 Rain , Snow
16 30 29 28 27 25 22 92 81 69 30.12 29.85 29.68 10 5 0 16 10 24 T Rain , Snow
17 31 26 21 22 18 16 77 68 58 30.27 30.23 30.13 10 8 6 14 7 17 0.00  
18 37 29 20 22 20 16 81 67 52 30.27 30.19 30.13 10 10 8 13 4 18 0.00  
19 39 31 23 27 25 19 92 76 59 30.17 30.11 30.06 10 8 2 9 4 13 0.01 Snow
20 45 38 31 32 27 24 85 65 45 30.10 29.98 29.86 10 9 7 24 12 30 T  
21 44 40 36 34 33 30 89 76 62 30.14 29.98 29.86 10 9 7 14 6 17 0.00  
22 36 31 25 25 22 18 78 73 68 30.53 30.38 30.14 10 10 9 17 10 22 0.00  
23 36 30 24 27 25 21 85 75 64 30.57 30.48 30.39 10 9 5 12 5 14 0.00  
24 34 33 31 30 28 25 92 81 69 30.38 30.27 30.18 10 3 0 13 8 14 0.25 Fog , Snow
25 31 28 25 29 25 21 92 84 75 30.34 30.27 30.18 9 5 1 21 10 28 0.05 Snow
26 29 24 19 21 18 15 88 76 63 30.40 30.36 30.29 10 9 7 18 12 25 T Snow
27 30 24 18 17 16 14 84 74 63 30.45 30.38 30.30 10 10 8 12 6 15 T Snow
28 40 30 19 27 23 17 84 69 54 30.29 30.19 30.09 10 9 8 15 5 - 0.00  
29 45 37 28 43 35 26 100 88 75 30.08 29.85 29.72 9 3 1 18 9 26 0.06 Rain
30 57 50 43 52 48 41 93 85 77 29.73 29.69 29.64 10 7 2 25 14 35 T  
31 64 52 40 57 52 25 86 74 62 29.88 29.70 29.64 10 8 0 26 14 32 0.53 Fog , Rain , Thunderstorm