Weather Observations for Champaign-Urbana, Illinois
Illinois State Water Survey, Prairie Research Institute, University of Illinois
January 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	32	2:15 PM	15	12:44 AM	24	-2	41	0	0.00	0.0	0	36	35	15
2	39	1:55 PM	21	5:34 AM	30	+5	35	0	0.00	0.0	0	37	35	21
3	40	2:11 PM	32	12:25 AM	36	+11	29	0	0.37	0.0	0	38	35	32	rain
4	34	12:00 AM	8	11:58 PM	21	-4	44	0	0.31	0.0	0	38	35		rain
5	13	11:13 PM	1	7:14 AM	7	-18	58	0	0.02	0.2	0	39	35	1	snow
6	13	6:05 AM	8	6:24 AM	11	-14	54	0	0.21	3.1	3	41	35	11	snow
7	12	12:00 AM	-7	11:58 PM	3	-22	62	0	0.01	T	3	35	35	1	snow
8									0.00	0.0	3	34	34	-8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Avg/Sum	26.1		11.1		18.9		323	0	0.92	3.3		37.3	34.9
Highest	40		32		36		62	0	0.37	3.1	3
Lowest	12		-7		3		29	0	0.00	0.0	0
Normal	32.9		16.7		24.8		1117	0	2.05	6.8
Departure	-6.8		-5.6		-5.9		-794	0	-1.13	-3.5
Days ≥ 90	0	Days ≤ 32	7
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