Weather Observations for Champaign-Urbana, Illinois
Illinois State Water Survey, Prairie Research Institute, University of Illinois
July 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 76 2:46 PM 61 11:59 PM 69 -6 0 4 0.00 0.0 0 76 74 63  
2 76 1:45 PM 58 4:45 AM 67 -8 0 2 0.01 0.0 0 74 73 58  
3 76 3:02 PM 62 11:59 PM 69 -6 0 4 0.00 0.0 0 75 74    
4 80 4:49 PM 58 4:06 AM 69 -6 0 4 0.00 0.0 0 73 72 58 fog
5 83 2:25 PM 59 4:32 AM 71 -4 0 6 0.00 0.0 0 74 73 59  
6 88 2:12 PM 62 4:18 AM 75 0 0 10 0.00 0.0 0 75 74 62 fog
7 75 12:02 AM 56 11:56 PM 66 -9 0 1 1.43 0.0 0 79 76 71 rain, fog
8 71 11:34 PM 56 6:12 AM 64 -11 1 0 0.10 0.0 0 73 73 56 rain, fog
9 67 5:06 PM 60 4:32 AM 64 -11 1 0 1.02 0.0 0 72 71 60 rain, fog
10 78 3:25 PM 62 3:06 AM 70 -5 0 5 0.02 0.0 0 72 71 62 rain, fog
11 81 1:14 PM 61 4:24 AM 71 -4 0 6 0.03 0.0 0 73 72 61 rain, thunder, fog
12 86 3:58 PM 70 2:30 AM 78 +3 0 13 0.22 0.0 0 77 74 70 rain, fog
13 91 3:10 PM 71 4:47 AM 81 +6 0 16 0.00 0.0 0 79 76 71 fog
14 87 2:10 PM 64 11:59 PM 76 +1 0 11 0.00 0.0 0 80 77 70  
15 80 3:47 PM 60 4:49 AM 70 -5 0 5 0.00 0.0 0 78 77 60  
16 83 2:40 PM 65 4:25 AM 74 -1 0 9 0.00 0.0 0 78 77 65  
17 90 2:33 PM 72 11:57 PM 81 +6 0 16 0.01 0.0 0 79 77 73 rain, fog
18 91 11:35 AM 70 1:01 AM 81 +6 0 16 0.00 0.0 0 81 79 70 fog
19 85 4:09 PM 70 11:59 PM 78 +3 0 13 0.01 0.0 0 82 80   rain
20 85 2:25 PM 68 11:31 PM 77 +2 0 12 0.02 0.0 0 80 78 69 rain, fog
21 82 2:05 PM 64 11:51 PM 73 -2 0 8 0.36 0.0 0 79 77 68 rain, thunder, fog
22 82 3:10 PM 59 5:06 AM 71 -4 0 6 0.00 0.0 0 76 76 59  
23 83 3:17 PM 62 5:01 AM 73 -2 0 8 0.00 0.0 0 76 76 62  
24 84 3:04 PM 62 4:00 AM 73 -2 0 8 0.00 0.0 0 76 76 62  
25 87 4:04 PM 65 4:10 AM 76 +1 0 11 0.00 0.0 0 77 76 65  
26 84 2:56 PM 70 11:58 PM 77 +3 0 12 0.09 0.0 0 79 77   fog, thunderstorm
27 86 3:09 PM 68 3:36 AM 77 +3 0 12 0.00 0.0 0 79 77 68 fog
28 92 1:38 PM 71 4:48 AM 82 +8 0 17 0.00 0.0 0 80 78 71 fog
29 87 12:46 PM 68 11:56 PM 78 +4 0 13 0.90 0.0 0 81 79 72 thunderstorms, fog
30 86 2:54 PM 63 4:30 AM 75 +1 0 10 0.00 0.0 0 78 78 63  
31 88 1:24 PM 66 5:21 AM 77 +3 0 12 0.00 0.0 0 79 78    
Avg/Sum 82.9   64.0   73.6   2 270 4.22 0.0 0 77.1 75.7    
Highest 92   72   82   1 17 1.43 0.0 0        
Lowest 67   56   64   0 0 0.00 0.0 0        
Normal 85.0   64.9   75.0   1 309 4.70 0.0          
Departure -2.1   -0.9   -1.3   1 -39 -0.48 0.0          
Days 90 4 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