Weather Observations for Champaign-Urbana, Illinois
Illinois State Water Survey, Prairie Research Institute, University of Illinois
December 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
2
3
4
5
6
7
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
Highest	0		0		0		0	0	0.00	0.0	0
Lowest	0		0		0		0	0	0.00	0.0	0
Normal	36.7		21.2		29.0		1117	0	2.73	6.6
Departure
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 # of days with a high temperature of 90° or more, "Days 32" means # of days with a low temperature of 32° or less