Weather History for Savanna, IL

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 54 °F 40 °F 27 °F
Mean Temperature 46 °F 34 °F 19 °F
Min Temperature 40 °F 27 °F 11 °F
Degree Days  
Heating Degree Days (base 65) 46 31 19 970
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 51 °F 28 °F 4 °F
Precipitation  
Precipitation 0.78 in 0.06 in 0.00 in 1.74 in
Snowdepth - - - -
Wind  
Wind 26 mph 7 mph 0 mph
Gust Wind 34 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.52 in 30.11 in 29.44 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 10, 2011 Rise Set
Actual Time 7:17 AM CST 4:28 PM CST
Civil Twilight 6:45 AM CST 5:00 PM CST
Nautical Twilight 6:10 AM CST 5:35 PM CST
Astronomical Twilight 5:36 AM CST 6:09 PM CST
Moon 4:42 PM CST (12/10) 7:17 AM CST (12/10)
Length of Visible Light 10h 14m
Length of Day
9h 11m
Full, 100% of the Moon is Illuminated
Dec 10
Full
Dec 17
Last Quarter
Dec 24
New
Jan 1
First Quarter
Jan 9
Full

Weather History Calendar

 
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
41 | 28 0.00
Average:
- | - -
Scattered Clouds
Actual:
38 | 22 0.00
Average:
- | - -
Rain
Actual:
48 | 34 0.78
Average:
- | - -
Rain
Actual:
51 | 33 0.11
Average:
- | - -
Overcast
Actual:
34 | 30 0.00
Average:
- | - -
Snow
Actual:
32 | 30 0.00
Average:
- | - -
Partly Cloudy
Actual:
31 | 19 0.00
Average:
- | - -
Partly Cloudy
Actual:
34 | 26 0.00
Average:
- | - -
Snow
Actual:
27 | 21 0.00
Average:
- | - -
Scattered Clouds
Actual:
27 | 11 0.00
Average:
- | - -
Clear
Actual:
43 | 22 0.00
Average:
- | - -
Mostly Cloudy
Actual:
45 | 30 0.00
Average:
- | - -
Overcast
Actual:
44 | 35 0.00
Average:
- | - -
Thunderstorm
Actual:
52 | 40 0.57
Average:
- | - -
Mostly Cloudy
Actual:
54 | 30 0.01
Average:
- | - -
Scattered Clouds
Actual:
33 | 22 0.00
Average:
- | - -
Snow
Actual:
34 | 28 0.01
Average:
- | - -
Scattered Clouds
Actual:
49 | 21 0.00
Average:
- | - -
Scattered Clouds
Actual:
47 | 34 0.00
Average:
- | - -
Snow
Actual:
38 | 32 0.00
Average:
- | - -
Rain
Actual:
40 | 32 0.00
Average:
- | - -
Mostly Cloudy
Actual:
36 | 29 0.00
Average:
- | - -
Partly Cloudy
Actual:
31 | 18 0.00
Average:
- | - -
Clear
Actual:
41 | 17 0.00
Average:
- | - -
Clear
Actual:
45 | 32 0.00
Average:
- | - -
Scattered Clouds
Actual:
45 | 21 0.00
Average:
- | - -
Partly Cloudy
Actual:
40 | 30 0.00
Average:
- | - -
Partly Cloudy
Actual:
34 | 21 0.00
Average:
- | - -
Scattered Clouds
Actual:
48 | 30 0.00
Average:
- | - -
Rain
Actual:
40 | 33 0.26
Average:
- | - -
Fog
Actual:
43 | 32 0.00
Average:
- | - -
 

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 41 34 28 30 25 23 86 69 48 30.29 30.21 30.15 10 10 10 12 4 - 0.00  
2 38 30 22 31 27 21 96 84 68 30.46 30.39 30.30 10 9 1 10 5 - 0.00  
3 48 41 34 46 41 32 97 92 86 30.25 30.11 29.87 10 4 0 18 8 26 0.78 Rain
4 51 42 33 49 35 28 95 86 78 30.27 30.04 29.76 10 9 3 22 12 29 0.11 Rain
5 34 32 30 30 28 26 91 84 77 30.35 30.31 30.27 10 7 4 16 8 21 0.00  
6 32 31 30 27 23 19 82 72 61 30.32 30.28 30.19 10 10 4 13 7 - 0.00 Snow
7 31 25 19 27 20 16 87 75 61 30.15 30.08 30.00 10 9 5 15 9 18 0.00  
8 34 30 26 26 23 21 84 75 62 30.24 30.19 30.13 10 9 7 14 4 - 0.00  
9 27 24 21 22 12 4 88 61 39 30.40 30.30 30.22 10 10 3 13 7 18 0.00 Snow
10 27 19 11 19 8 5 78 64 42 30.52 30.47 30.41 10 10 10 13 7 17 0.00  
11 43 32 22 31 25 20 97 82 58 30.38 30.33 30.29 10 7 2 13 8 - 0.00  
12 45 38 30 31 29 28 93 78 54 30.35 30.32 30.29 10 8 4 10 7 - 0.00  
13 44 40 35 36 32 29 84 75 65 30.38 30.33 30.27 10 9 7 8 2 - 0.00  
14 52 46 40 51 45 39 97 96 94 30.16 29.90 29.66 7 3 1 16 8 21 0.57 Rain , Thunderstorm
15 54 42 30 51 31 23 88 75 61 30.29 29.96 29.63 10 10 5 26 14 34 0.01  
16 33 28 22 25 21 18 85 73 60 30.42 30.36 30.29 10 10 10 13 6 - 0.00  
17 34 31 28 30 28 27 97 90 82 30.34 30.24 30.18 10 6 1 7 3 - 0.01 Snow
18 49 35 21 36 30 20 98 83 58 30.21 30.05 29.86 10 7 1 16 6 - 0.00  
19 47 41 34 36 34 30 87 77 62 30.18 29.96 29.84 10 10 10 16 8 22 0.00  
20 38 35 32 34 31 28 97 85 75 30.19 30.01 29.77 10 8 2 8 5 - 0.00 Rain , Snow
21 40 36 32 36 34 31 99 94 81 29.91 29.78 29.68 10 4 1 9 3 - 0.00 Rain
22 36 34 29 33 30 19 99 85 64 30.28 30.11 29.92 10 7 2 15 5 22 0.00  
23 31 24 18 24 20 16 94 78 65 30.36 30.29 30.18 10 10 10 15 6 18 0.00  
24 41 29 17 28 23 16 94 77 56 30.29 30.23 30.17 10 10 7 13 5 17 0.00  
25 45 38 32 29 27 26 78 65 46 30.29 30.17 30.07 10 10 10 14 7 18 0.00  
26 45 33 21 30 25 20 97 76 48 30.31 30.15 29.97 10 10 10 16 5 25 0.00  
27 40 35 30 32 28 21 94 75 53 29.99 29.76 29.66 10 10 10 20 8 33 0.00  
28 34 28 21 29 22 17 94 77 60 30.07 29.96 29.76 10 10 7 12 5 - 0.00  
29 48 39 30 32 31 28 94 77 53 29.74 29.63 29.54 10 10 7 16 7 22 0.00  
30 40 36 33 39 35 32 96 92 87 29.83 29.59 29.44 10 5 2 17 8 22 0.26 Rain
31 43 38 32 39 35 32 98 92 81 29.96 29.81 29.54 10 5 0 21 7 28 0.00 Fog