History for Chicago DuPage, IL

Month of December, 2012 — View Current Conditions
Month of December, 2012
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Daily Weekly Monthly Custom
  Max Avg Min Sum
Temperature
Max Temperature 69 °F 41 °F 28 °F
Mean Temperature 59 °F 34 °F 21 °F
Min Temperature 48 °F 27 °F 11 °F
Degree Days
Heating Degree Days (base 65) 44 31 6 946
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 8 0 0 11
Dew Point
Dew Point 61 °F 30 °F 8 °F
Precipitation
Precipitation 0.79 in 0.07 in 0.00 in 1.48 in
Snowdepth - - - -
Wind
Wind 36 mph 10 mph 0 mph
Gust Wind 51 mph 25 mph 18 mph
Sea Level Pressure
Sea Level Pressure 30.44 in 29.98 in 29.01 in
Monthly Graph
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Date:
Astronomy
May. 22, 2013 Rise Set
Actual Time 7:13 AM CST 4:22 PM CST
Civil Twilight 6:41 AM CST 4:54 PM CST
Nautical Twilight 6:06 AM CST 5:29 PM CST
Astronomical Twilight 5:32 AM CST 6:03 PM CST
Moon 8:17 AM CST (12/14) 6:15 PM CST (12/14)
Length Of Visible Light 10h 12m
Length of Day
9h 09m
Waxing Crescent, 3% of the Moon is Illuminated
Dec 14
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Visit Astronomy
Monthly Calendar Overview
Print This Calendar Precipitation: Actual month total 1.48 Normal month total 1.72
« Previous Month « 2011 December 2012 2013 » Next Month »
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
1 Fog
Actual: 58 | 26
Precip: T
Average: 41 | 24
Precip: 0.07
2 Fog
Actual: 63 | 44
Precip: 0.08
Average: 40 | 24
Precip: 0.07
3 Rain
Actual: 69 | 48
Precip: 0.02
Average: 40 | 23
Precip: 0.07
4 Scattered Clouds
Actual: 57 | 34
Precip: 0.00
Average: 39 | 23
Precip: 0.06
5 Clear
Actual: 41 | 21
Precip: 0.00
Average: 39 | 22
Precip: 0.07
6 Rain
Actual: 45 | 31
Precip: T
Average: 38 | 22
Precip: 0.06
7 Rain
Actual: 44 | 39
Precip: 0.06
Average: 38 | 22
Precip: 0.06
8 Snow
Actual: 42 | 34
Precip: 0.10
Average: 38 | 21
Precip: 0.06
9 Snow
Actual: 40 | 34
Precip: 0.10
Average: 37 | 21
Precip: 0.06
10 Rain
Actual: 37 | 29
Precip: T
Average: 37 | 21
Precip: 0.06
11 Partly Cloudy
Actual: 34 | 20
Precip: 0.00
Average: 36 | 20
Precip: 0.05
12 Clear
Actual: 44 | 21
Precip: 0.00
Average: 36 | 20
Precip: 0.06
13 Clear
Actual: 48 | 25
Precip: 0.00
Average: 36 | 20
Precip: 0.06
14 Clear
Actual: 48 | 24
Precip: 0.00
Average: 35 | 19
Precip: 0.05
15 Rain
Actual: 49 | 41
Precip: 0.31
Average: 35 | 19
Precip: 0.06
16 Overcast
Actual: 49 | 38
Precip: 0.00
Average: 35 | 19
Precip: 0.05
17 Mostly Cloudy
Actual: 38 | 28
Precip: 0.00
Average: 34 | 18
Precip: 0.06
18 Rain
Actual: 40 | 29
Precip: T
Average: 34 | 18
Precip: 0.06
19 Rain
Actual: 41 | 30
Precip: 0.02
Average: 34 | 18
Precip: 0.06
20 Snow
Actual: 49 | 32
Precip: 0.79
Average: 34 | 18
Precip: 0.05
21 Snow
Actual: 32 | 18
Precip: T
Average: 33 | 17
Precip: 0.06
22 Clear
Actual: 30 | 12
Precip: 0.00
Average: 33 | 17
Precip: 0.06
23 Partly Cloudy
Actual: 33 | 14
Precip: 0.00
Average: 33 | 17
Precip: 0.06
24 Overcast
Actual: 31 | 26
Precip: T
Average: 33 | 17
Precip: 0.04
25 Overcast
Actual: 28 | 20
Precip: T
Average: 32 | 17
Precip: 0.05
26 Overcast
Actual: 32 | 26
Precip: T
Average: 32 | 17
Precip: 0.04
27 Overcast
Actual: 31 | 26
Precip: 0.00
Average: 32 | 16
Precip: 0.04
28 Snow
Actual: 31 | 27
Precip: T
Average: 32 | 16
Precip: 0.04
29 Snow
Actual: 30 | 17
Precip: T
Average: 32 | 16
Precip: 0.04
30 Clear
Actual: 32 | 11
Precip: 0.00
Average: 32 | 16
Precip: 0.05
31 Partly Cloudy
Actual: 33 | 19
Precip: 0.00
Average: 32 | 16
Precip: 0.04
 
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 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 58 42 26 50 39 26 100 88 75 30.14 30.02 29.88 10 4 0 21 9 28 T Fog
2 63 54 44 54 50 44 100 89 65 30.06 29.98 29.87 10 5 0 17 6 24 0.08 Fog
3 69 59 48 61 57 48 100 89 68 30.03 29.88 29.76 10 5 0 31 13 43 0.02 Fog , Rain
4 57 46 34 47 35 26 80 60 42 30.31 30.10 29.91 10 10 9 20 10 24 0.00  
5 41 31 21 27 23 16 82 70 55 30.44 30.35 30.22 10 10 10 14 7 17 0.00  
6 45 38 31 39 34 27 85 78 68 30.22 30.02 29.91 10 10 9 16 10 20 T Rain
7 44 42 39 41 37 34 100 85 73 29.97 29.92 29.89 10 8 3 12 7 14 0.06 Rain
8 42 38 34 36 33 28 100 87 70 30.10 29.97 29.87 10 8 2 16 10 20 0.10 Rain , Snow
9 40 37 34 39 36 33 100 93 86 30.08 29.85 29.71 10 6 1 18 8 23 0.10 Rain , Snow
10 37 33 29 34 28 22 100 87 69 29.96 29.80 29.71 10 7 2 22 13 30 T Rain
11 34 27 20 27 22 18 93 79 56 30.16 30.03 29.94 10 9 7 22 10 26 0.00  
12 44 33 21 27 24 19 92 73 47 30.30 30.25 30.17 10 10 10 18 10 23 0.00  
13 48 37 25 30 26 23 85 68 41 30.28 30.20 30.11 10 10 8 24 11 31 0.00  
14 48 36 24 33 29 23 92 74 48 30.21 30.14 30.03 10 10 6 10 5 13 0.00  
15 49 45 41 47 42 31 100 89 60 30.01 29.68 29.56 10 5 2 21 12 28 0.31 Rain
16 49 44 38 46 40 33 93 88 81 29.74 29.63 29.57 10 9 6 18 12 22 0.00  
17 38 33 28 33 30 26 92 83 75 29.75 29.72 29.66 9 8 4 10 4 13 0.00  
18 40 35 29 37 32 26 93 86 75 29.84 29.70 29.59 9 5 4 22 8 28 T Rain
19 41 36 30 36 32 27 93 85 73 30.06 29.96 29.77 7 5 3 18 8 25 0.02 Rain
20 49 41 32 48 36 28 100 92 86 29.71 29.32 29.01 10 4 1 36 17 51 0.79 Rain , Snow
21 32 25 18 28 18 12 87 77 68 30.20 29.90 29.49 10 10 3 36 21 46 T Snow
22 30 21 12 23 16 9 92 80 66 30.24 30.13 29.97 10 10 7 12 5 14 0.00  
23 33 24 14 27 22 14 96 86 78 30.04 29.99 29.94 10 8 5 13 6 15 0.00  
24 31 29 26 27 25 21 89 83 79 30.12 29.94 29.86 10 9 7 15 8 21 T  
25 28 24 20 22 20 17 84 79 74 30.32 30.26 30.13 10 10 9 15 9 18 T  
26 32 29 26 24 22 20 86 73 64 30.19 30.08 30.00 10 10 9 25 17 33 T  
27 31 29 26 26 23 19 86 79 74 30.21 30.14 30.08 10 10 8 14 7 17 0.00  
28 31 29 27 29 27 25 96 89 80 30.12 30.01 29.87 10 5 1 12 4 13 T Snow
29 30 24 17 30 23 13 100 87 75 30.24 29.97 29.85 10 6 1 21 12 25 T Snow
30 32 22 11 26 17 8 88 80 69 30.36 30.25 30.09 10 8 4 17 9 22 0.00  
31 33 26 19 25 20 10 86 75 68 30.16 30.07 30.02 10 9 7 17 11 23 0.00  
Comma Delimited File