Southern Illinois Univ Carbondale is first with 32.4 degrees.

Incidentally, both are NCAA members.

beat Eastern Illinois Univ (28.4 degrees), Millikin Univ (27.5 degrees), McCormick Theological Seminary (27.3 degrees), and Lutheran School of Theology at Chicago (27.3 degrees), and others, ending with Northern Illinois Univ (20.3 degrees).

25 out of the other 119 colleges were ruled out due to missing, unknown, or not-applicable values for average January temperature, e.g., ITT Technical Institute-Oak Brook.

1. Weather data comes from NOAA'S 1981-2010 Climate Normals data files at NOAA's National Climatic Data Center, using the closest weather station to each college, as determined by distance calculations using the latitude and longitude of the weather station and of the college, as listed in the IPEDS directory (http://nces.ed.gov/ipeds).
   
2. College geographic information is from the IPEDS Directory, 2012-13 (Provisional release) by the National Center for Education Statistics (http://nces.ed.gov/ipeds).
   

McKendree Univ is in Lebanon, IL, is private and nonprofit, is in the Great Lakes Valley Conference, is United Methodist, grants doctorates, has a nursing major, has its top Associates major in business, has its top major in nursing, offers on-campus housing, requires test scores for undergrad admissions, is on the semester system, its top Masters major is business administration and management, and enrolls from 1,000 to 4,999 students.

• PayScale mid-career median salary ranking (709th place)
• average full-time teaching salary ($59,683)
• in-state undergrad tuition & fees ($25,340)
• out-of-state undergrad tuition & fees ($25,340)
• average grant aid to undergrads ($18,684)
• endowment per full-time student ($10,353)
• average undergrad student loan ($5,818)
• cost of a shared room ($4,530)
• research spending ($0.0K)
• research spending per student ($0.0)
• undergrads who get financial aid (100%)
• in-state freshmen (79.1%)
• undergrads who receive student loans (79%)
• undergrads among full-time students (73.8%)
• full-time retention rate (69%)
• ratio of female full-time freshmen (51.5%)
• undergrads who get Pell grants (41%)
• undergrads who are 25 years or older (39.3%)
• minorities (17.9%)
• tuition & fees increase over three years (14.8%)
• average teaching salary differential (men vs. women, 14.8%)
• Blacks or African Americans (13.6%)
• grad students who are under 25 years old (12.4%)
• Hispanics (2.6%)
• Asians (1.4%)
• foreign students (1%)
• American Indians or Alaska Natives (0.3%)
• non-resident tuition & fees surcharge (0%)
• average teaching salary differential (women vs. men, -12.9%)
• 25th percentile SAT math score (460)
• 25th percentile SAT reading score (420)
• 25th percentile SAT writing score (390)
• 75th percentile SAT math score (570)
• 75th percentile SAT reading score (520)
• 75th percentile SAT writing score (480)
• alumni who played in the National Football League (0)
• average January temperature (30.0 degrees)
• dorm capacity (862)
• first-year applicants (1,354)
• foreign students (39)
• full-time grad students (205)
• full-time undergrads (1,637)
• grad students (796)
• members of the National Academy of Sciences (0)
• men's basketball Final Four appearances (0)
• Rhodes Scholar alumni (2)
• total 75th percentile SAT score (1,570)
• undergrads (2,240)
• yearly for-credit students (3,979)
• on-campus yearly property crimes per thousand students (1.51)
• students per faculty member (14)
• annual rainfall (44.3 inches)
• diversity and inclusion ratio (0.01)
• elevation (140 meters)

Sources