Weather Observations for Champaign-Urbana, Illinois
Illinois State Water Survey, Prairie Research Institute, University of Illinois
August 2015
  Midnight to Midnight 8 AM Observations  
  Temperature (F) Degree Days Precipitation (inches) Soil Temperature (F) Temp. (F)  
Day High Time (CST) Low Time (CST) Mean Depart Heating Cooling Precipitation Snowfall Snow Depth 4 inch 8 inch Morning Low Comments
1 84 1:34 PM 63 5:30 AM 74 0 0 9 0.00 0.0 0 78 77    
2 90 4:08 PM 65 4:12 AM 78 +4 0 13 0.00 0.0 0 78 77    
3 85 1:44 PM 65 11:56 PM 75 +1 0 10 0.00 0.0 0 80 78 75  
4 81 1:25 PM 58 4:18 AM 70 -4 0 5 0.00 0.0 0 77 76 58  
5 83 3:36 PM 62 4:38 AM 73 -1 0 8 0.00 0.0 0 77 76 62  
6 82 2:03 PM 62 11:58 PM 72 -2 0 7 0.13 0.0 0 79 77 65 rain
7 83 4:05 PM 58 4:29 AM 71 -3 0 6 0.00 0.0 0 76 76 58  
8 86 1:13 PM 63 4:26 AM 75 +1 0 10 0.00 0.0 0 77 76    
9 83 3:28 PM 70 2:03 AM 77 +3 0 12 0.09 0.0 0 79 77   rain
10 84 3:50 PM 70 11:57 PM 77 +3 0 12 1.04 0.0 0 80 77 71 rain, fog, thunder
11 83 2:41 PM 64 11:59 PM 74 0 0 9 0.00 0.0 0 79 77 67 fog
12 82 1:27 PM 60 4:55 AM 71 -3 0 6 0.00 0.0 0 78 77 60  
13 84 2:36 PM 60 5:13 AM 72 -2 0 7 0.00 0.0 0 77 76 60  
14 87 1:07 PM 65 5:49 AM 76 +2 0 11 0.00 0.0 0 78 76 65  
15 90 3:40 PM 67 4:34 AM 79 +5 0 14 0.00 0.0 0 79 77 67  
16 89 3:22 PM 67 4:43 AM 78 +4 0 13 0.00 0.0 0 80 78 67 fog
17 88 1:03 PM 65 5:00 AM 77 +3 0 12 0.00 0.0 0 80 78 65  
18 86 2:14 PM 67 5:19 AM 77 +3 0 12 0.57 0.0 0 80 78 67 thunderstorms
19 78 12:52 PM 58 11:53 PM 68 -6 0 3 1.28 0.0 0 78 77 66 thunderstorms, rain
20 77 2:17 PM 54 5:21 AM 66 -7 0 1 0.01 0.0 0 75 74 54 rain
21 82 3:32 PM 53 5:39 AM 68 -5 0 3 0.00 0.0 0 73 73 53  
22 80 2:54 PM 56 5:10 AM 68 -5 0 3 0.00 0.0 0 74 73 56  
23 77 3:03 PM 58 11:58 PM 68 -5 0 3 0.00 0.0 0 76 74   fog
24 76 3:09 PM 53 5:34 AM 65 -8 0 0 0.00 0.0 0 72 72 53 fog
25 74 2:23 PM 52 5:27 AM 63 -10 2 0 0.00 0.0 0 72 71 52  
26 71 11:35 AM 57 11:59 PM 64 -9 1 0 0.00 0.0 0 73 72 60  
27 78 2:06 PM 53 4:37 AM 66 -7 0 1 0.00 0.0 0 71 71 53  
28 80 12:40 PM 57 4:47 AM 69 -3 0 4 0.00 0.0 0 72 72 57  
29 81 11:41 AM 63 12:45 AM 72 0 0 7 0.02 0.0 0 74 72 63 rain
30 86 2:32 PM 63 5:56 AM 75 +3 0 10 0.02 0.0 0 75 73 63 rain, fog
31 88 3:37 PM 65 5:30 AM 77 +5 0 12 0.00 0.0 0 76 74 65 fog
Avg/Sum 82.5   61.1   72.1   3 223 3.16 0.0 0 76.5 75.2    
Highest 90   70   79   2 14 1.28 0.0 0        
Lowest 71   52   63   0 0 0.00 0.0 0        
Normal 83.7   63.1   73.4   5 265 3.93 0.0          
Departure -1.2   -2.0   -1.3   -2 -42 -0.77 0.0          
Days 90 2 Days 32 0                        
Notes:
Temperatures are from midnight to midnight (calendar day) and are in degrees Fahrenheit
Precipitation and snowfall are measured at 8 am and represent the previous 24 hours, T means a trace of precipitation
Time is always Central Standard Time (CST)
Heating and cooling degree days use a base temperature of 65F
Normal refers to the new 1981-2010 average
"Days 90" means # of days with a high temperature of 90 or more, "Days 32" means # of days with a low temperature of 32 or less