Weather Observations for Champaign-Urbana, Illinois
Illinois State Water Survey, Prairie Research Institute, University of Illinois
October 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 66 1:09 PM 45 6:27 AM 56 -4 9 0 0.00 0.0 0 66 66 45  
2 66 1:53 PM 45 6:01 AM 56 -3 9 0 0.00 0.0 0 64 64 45  
3 59 11:56 AM 47 11:48 PM 53 -6 12 0 0.00 0.0 0 64 63    
4 70 2:29 PM 47 12:16 AM 59 +1 6 0 T 0.0 0 63 62 47 rain, fog
5 72 2:56 PM 52 2:29 AM 62 +4 3 0 0.00 0.0 0 64 63 52 fog
6 74 2:26 PM 54 5:12 AM 64 +6 1 0 0.00 0.0 0 66 64 54 fog
7 80 3:06 PM 50 4:37 AM 65 +8 0 0 0.00 0.0 0 65 64 50 fog
8 79 1:02 PM 53 6:08 AM 66 +9 0 1 0.00 0.0 0 66 65 53  
9 64 1:09 PM 48 11:59 PM 56 0 9 0 0.03 0.0 0 68 66 58  
10 70 3:42 PM 43 6:15 AM 57 +1 8 0 0.00 0.0 0 62 62 43  
11 79 2:10 PM 43 6:24 AM 61 +5 4 0 0.00 0.0 0 62 62 43  
12 77 12:22 PM 54 1:35 AM 66 +11 0 1 0.00 0.0 0 64 63 54  
13 67 2:20 PM 47 11:34 PM 57 +2 8 0 0.00 0.0 0 63 62 52  
14 68 2:28 PM 43 3:59 AM 56 +1 9 0 0.00 0.0 0 61 61 43  
15 74 1:26 PM 37 5:48 AM 56 +2 9 0 0.00 0.0 0 59 60 37  
16 60 1:37 PM 39 6:24 AM 50 -4 15 0 0.00 0.0 0 59 60 39  
17 53 1:24 PM 31 11:53 PM 42 -12 23 0 0.00 0.0 0 56 57   First frost this season
18 62 3:53 PM 31 12:45 AM 47 -6 18 0 0.00 0.0 0 54 55 31  
19 71 2:34 PM 36 1:38 AM 54 +1 11 0 0.00 0.0 0 55 55 36  
20 78 1:38 PM 50 5:57 AM 64 +12 1 0 0.00 0.0 0 58 57 50  
21 81 1:16 PM 53 2:28 AM 67 +15 0 2 0.00 0.0 0 60 58 53  
22 78 1:25 PM 54 11:58 PM 66 +14 0 1 0.00 0.0 0 63 60 57  
23 71 3:38 PM 51 4:11 AM 61 +10 4 0 0.00 0.0 0 63 61 51  
24 71 10:41 AM 51 11:43 PM 61 +10 4 0 0.01 0.0 0 65 62 63  
25 64 1:31 PM 45 6:50 AM 55 +4 10 0 0.00 0.0 0 61 60 45  
26 67 2:21 PM 42 6:04 AM 55 +5 10 0 0.00 0.0 0 58 58 42  
27 55 3:35 PM 46 5:11 AM 51 +1 14 0 0.30 0.0 0 59 58 46 rain, fog
28 57 8:13 AM 38 10:58 PM 48 -2 17 0 0.83 0.0 0 60 58 54 rain, fog
29 45 2:17 PM 34 6:47 AM 40 -9 25 0 0.02 0.0 0 56 56 34 rain, fog
30 56 1:26 PM 39 5:36 AM 48 -1 17 0 T 0.0 0 54 54 39 rain
31 56 3:33 PM 44 4:12 AM 50 +2 15 0 0.05 0.0 0 56 55 44 rain
Avg/Sum 67.4   44.9   56.4   271 5 1.24 0.0 0 61.1 60.4    
Highest 81   54   67   25 2 0.83 0.0 0        
Lowest 45   31   40   0 0 0.00 0.0 0        
Normal 65.2   42.6   53.9   358 14 3.26 0.1          
Departure 2.2   2.3   2.5   -87 -9 -2.02 -0.1          
Days ≥ 90 0 Days ≤ 32 2                        
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 65°F
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