Weather Observations for Champaign-Urbana, Illinois
Illinois State Water Survey, Prairie Research Institute, University of Illinois
February 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	33	2:13 PM	16	11:59 PM	25	-1	40	0	0.46	2.0	2	37	35	31	rain, snow
2	18	3:16 PM	10	4:59 AM	14	-12	51	0	0.22	1.8	4	37	36	10	rain, snow
3	36	3:12 PM	15	3:01 AM	26	0	39	0	T	T	3	36	35	15	snow flurries
4	34	1:20 AM	9	11:54 PM	22	-4	43	0	0.00	0.0	3	37	35	30
5	17	12:47 PM	2	7:24 AM	10	-16	55	0	0.04	1.1	4	36	35	2	snow
6	35	3:58 PM	13	1:54 AM	24	-2	41	0	0.00	0.0	4	36	35	13
7	50	2:40 PM	27	12:04 AM	39	+12	26	0	0.00	0.0	3	36	34	27
8	55	1:49 PM	32	11:58 PM	44	+17	21	0	0.00	0.0	T	36	34
9	32	12:01 AM	26	10:58 AM	29	+2	36	0	T	T	0	38	37	28	fog, snow
10	37	3:18 PM	26	6:48 AM	32	+5	33	0	T	T	0	36	35	26	snow
11	36	11:14 AM	21	11:59 PM	29	+1	36	0	0.00	0.0	0	37	36	31
12	21	12:01 AM	10	10:48 PM	16	-8	49	0	T	T	T	35	36	13	snow
13	29	9:37 PM	6	4:47 AM	18	-10	47	0	0.00	0.0	0	35	36	6
14	28	6:51 AM	4	11:50 PM	16	-13	49	0	0.00	0.0	0	34	34	26
15	19	1:42 PM	2	4:13 AM	11	-18	54	0	0.00	0.0	0	30	33	2
16	21	3:18 PM	8	11:54 PM	15	-14	50	0	T	T	T	31	33	11	snow
17	30	1:48 PM	7	12:51 AM	19	-10	46	0	T	T	0	30	33	7	snow flurries
18	17	12:01 AM	1	11:51 PM	9	-21	56	0	0.03	0.8	1	32	33	8	snow
19	10	2:32 PM	-4	6:48 AM	3	-27	62	0	T	T	1	29	32	-4	snow, blowing snow
20	19	2:12 PM	-3	2:21 AM	8	-23	57	0	0.00	0.0	1	28	32	-3
21	32	2:40 PM	17	12:00 AM	25	-6	40	0	0.39	5.6	6	32	32	17	snow
22	29	1:10 AM	6	11:59 PM	18	-13	47	0	T	T	4	34	32	18	snow
23	17	2:54 PM	-5	11:34 PM	6	-26	59	0	0.00	0.0	3	33	32	0	Record low temp (surpassed -4, 1910)
24	29	5:30 PM	-16	6:17 AM	7	-25	58	0	0.00	0.0	3	31	32	-16	Record low temp (surpassed -2, 1967)
25	32	2:26 PM	11	5:50 AM	22	-10	43	0	0.00	0.0	3	32	32	11
26	23	12:00 AM	10	11:46 PM	17	-16	48	0	0.09	1.1	4		32	17	snow
27	17	3:56 PM	-3	6:37 AM	7	-26	58	0	T	T	4	32	32	-3	snow
28	24	3:49 PM	4	2:00 AM	14	-20	51	0	0.00	0.0	4	31	32	4
Avg/Sum	27.9		9.0		18.8		1295	0	1.23	12.4		33.7	33.8
Highest	55		32		44		62	0	0.46	5.6	6
Lowest	10		-16		3		21	0	0.00	0.0	0
Normal	37.7		20.2		29.0		1009	0	2.13	5.8
Departure	-9.8		-11.2		-10.2		286	0	-0.90	6.6
Days ≥ 90	0	Days ≤ 32	28
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