Weather Observations for Champaign-Urbana, Illinois
Illinois State Water Survey, Prairie Research Institute, University of Illinois
May 2014 Heating Cooling 8am 8am 8am
Degree Degree Precipitation Snowfall Snow Depth
Day High Time (CST) Low Time (CST) Mean Days Days inches inches inches Comments
1 52 1:16 PM 40 4:06 AM 46 19 0 0.02 0 0 rain
2 53 5:01 PM 44 3:30 AM 49 16 0 0.02 0 0 rain
3 71 4:20 PM 44 5:05 AM 58 7 0 0.00 0 0
4 69 2:58 PM 46 4:47 AM 58 7 0 0.00 0 0
5 74 2:19 PM 46 5:02 AM 60 5 0 0.00 0 0
6 78 3:03 PM 49 5:02 AM 64 1 0 0.00 0 0
7 86 3:10 PM 62 5:23 AM 74 0 9 0.00 0 0
8 88 2:08 PM 64 5:00 AM 76 0 11 0.00 0 0
9 79 3:54 PM 56 11:11 PM 68 0 3 0.19 0 0 rain
10 77 5:06 PM 53 3:59 AM 65 0 0 0.04 0 0 rain, thunderstorm
11 83 2:13 PM 56 12:58 AM 70 0 5 0.61 0 0 thunderstorm
12 83 1:58 PM 67 11:49 PM 75 0 10 0.00 0 0
13 69 8:30 AM 51 11:39 PM 60 5 0 0.19 0 0 thunderstorms
14 53 9:41 AM 44 11:12 PM 49 16 0 0.02 0 0
15 57 3:41 PM 43 1:39 AM 50 15 0 0.61 0 0 rain
16 53 1:01 PM 41 11:06 PM 47 18 0 0.24 0 0 rain
17 58 3:29 PM 38 4:26 AM 48 17 0 0.03 0 0 rain
18 66 2:28 PM 37 5:02 AM 52 13 0 0.00 0 0
19 71 4:13 PM 44 3:54 AM 58 7 0 T 0 0 rain sprinkles
20 84 2:12 PM 57 3:10 PM 71 0 6 0.00 0 0  
21 88 1:57 PM 67 4:57 AM 78 0 13 0.00 0 0
22 77 4:02 PM 58 11:58 PM 68 0 3 1.03 0 0 thunderstorms, hail
23 77 4:38 PM 51 5:03 AM 64 1 0 0.00 0 0
24 77 2:13 PM 50 5:03 AM 64 1 0 0.00 0 0
25 81 1:57 PM 60 5:03 AM 71 0 6 0.00 0 0
26 88 2:59 PM 59 5:13 AM 74 0 9 0.00 0 0
27 86 3:55 PM 61 9:24 PM 74 0 9 0.00 0 0
28 87 1:14 PM 63 4:49 AM 75 0 10 1.25 0 0 thunderstorms
29 85 12:47 PM 62 3:03 AM 74 0 9 0.00 0 0
30 87 3:18 PM 65 2:25 AM 76 0 11 0.13 0 0 thunderstorms
31 86 2:57 PM 62 4:57 AM 74 0 9 0.00 0 0
Average 74.9 52.9 64.2
Sum           148 123 4.38 0  
Highest 88 67 78 19 13 1.25 0 0
Lowest 52   37   46 0 0 0 0 0
Normal 73.4 51.6 62.5 146 69 4.89 0
Departure 1.5   1.3   1.7     -0.51 0  
Days 90 0 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 65°F
Normal refers to the new 1981-2010 average
Days 90 means number of days with a high of 90 degrees or more, Days 32 means number of days with a low of 32 degrees or less