Weather Observations for Champaign-Urbana, Illinois
Illinois State Water Survey, Prairie Research Institute, University of Illinois
April 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 72 1:37 PM 37 5:16 AM 55 +9 10 0 0.00 0.0 0 48 46 37  
2 72 11:39 AM 50 12:09 AM 61 +14 4 0 T 0.0 0 53 49 50  
3 56 10:22 AM 36 11:59 AM 46 -1 19 0 0.02 0.0 0 54 50 48  
4 59 2:55 PM 28 5:50 AM 44 -4 21 0 0.00 0.0 0 47 47 28  
5 66 2:49 PM 36 3:49 AM 51 +3 14 0 0.00 0.0 0 48 47 36  
6 62 2:47 PM 47 2:29 AM 55 +7 10 0 T 0.0 0 53 49 47  
7 65 5:10 PM 55 1:52 AM 60 +11 5 0 0.06 0.0 0 56 51 55 rain, drizzle, fog
8 75 11:14 AM 55 5:09 AM 65 +16 0 0 0.48 0.0 0 57 53 55 extensive 1/4 to 1/2 inch hail on hail pad
9 77 2:30 PM 51 11:59 PM 64 +14 1 0 1.25 0.0 0 62 56 62 thunderstorms, rain
10 67 2:53 PM 41 4:38 AM 54 +4 11 0 0.32 0.0 0 58 56 41 rain, thunderstorms
11 62 3:21 PM 35 5:22 AM 49 -1 16 0 0.00 0.0 0 53 53 35  
12 66 3:34 PM 40 2:57 AM 53 +2 12 0 0.00 0.0 0 55 54 40  
13 69 1:38 PM 54 11:53 PM 62 +11 3 0 0.05 0.0 0 57 54 54 rain
14 66 3:42 PM 51 9:14 PM 59 +7 6 0 0.01 0.0 0 56 55 51 rain
15 71 2:33 PM 47 5:15 AM 59 +7 6 0 0.00 0.0 0 55 54 47  
16 70 4:04 PM 52 11:48 PM 61 +9 4 0 0.08 0.0 0 59 56 52 rain, fog
17 76 3:39 PM 48 2:12 AM 62 +9 3 0 0.00 0.0 0 59 56 48  
18 79 1:06 PM 53 5:29 AM 66 +13 0 1 0.00 0.0 0 61 58 53  
19 60 8:36 AM 54 9:19 PM 57 +4 8 0 0.00 0.0 0 62 59    
20 56 1:18 AM 41 10:22 PM 49 -5 16 0 0.51 0.0 0 60 58 47 rain
21 62 3:18 PM 36 5:19 AM 49 -5 16 0 0.01 0.0 0 53 54 36 rain
22 53 4:10 PM 35 5:16 AM 44 -10 21 0 0.12 0.0 0 54 54 35 rain
23 58 4:14 PM 31 3:38 PM 45 -10 20 0 0.00 0.0 0 50 52 31  
24 61 1:26 PM 32 4:29 AM 47 -8 18 0 0.00 0.0 0 51 52 32  
25 52 12:59 AM 43 11:59 PM 48 -8 17 0 0.04 0.0 0 55 54 49 rain
26 58 2:38PM 38 5:25 AM 48 -8 17 0 0.62 0.0 0 53 52 38 rain, thunder
27 60 3:16 PM 40 5:23 AM 50 -6 15 0 0.00 0.0 0 53 53 40  
28 66 3:14 PM 39 4:10 AM 53 -4 12 0 0.00 0.0 0 54 53 39  
29 70 2:24 PM 41 5:13 AM 56 -1 9 0 0.00 0.0 0 55 55 41  
30 56 11:50 AM 40 11:45 PM 48 -9 17 0 0.05 0.0 0 57 56 43  
Avg/Sum 64.7   42.9   54.0   331 1 3.62 0.0   54.9 53.2    
Highest 79   55   66   21 1 1.25 0.0 0        
Lowest 52   28   44   0 0 0.00 0.0 0        
Normal 62.8   41.1   52.0   402 10 3.68 0.4          
Departure 1.9   1.8   2.1   -71 -9 -0.06 -0.4          
Days ≥ 90 0 Days ≤ 32 3                        
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