National Univ College-Rio Grande is first with 77.3 inches.

Incidentally, both are in Puerto Rico.

outdid U of Phoenix-Puerto Rico Campus (70.8 inches), Florida National Univ (70.4 inches), Columbia Southern Univ (67.3 inches), and DeVry Univ's Keller Graduate School of Management-Florida (67.1 inches), and others, ending with The Art Inst. of Las Vegas (4.2 inches).

35 out of the other 790 colleges were ruled out due to missing, unknown, or not-applicable values for annual rainfall, e.g., National Univ College-Arecibo.

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. The type of college is from the IPEDS Directory, 2012-13 (Provisional release) by the National Center for Education Statistics and combines public/private, profit/nonprofit, length of degree program, etc (http://nces.ed.gov/ipeds).
   

National Univ College-Bayamon is in Bayamon, PR, is private and for-profit, degree-granting, more than 50% Black, Hispanic, Asian, American Indian, or Alaska Native, has a nursing major, has its top Associates major in nursing, has its top major in nursing, is on the trimester system, and enrolls from 1,000 to 4,999 students.

• average full-time teaching salary ($27,646)
• out-of-state undergrad tuition & fees ($10,275)
• in-state undergrad tuition & fees ($6,495)
• average grant aid to undergrads ($5,191)
• average undergrad student loan ($2,775)
• endowment per full-time student ($0)
• Hispanics (100%)
• minorities (100%)
• undergrads who get financial aid (99%)
• undergrads who get Pell grants (98%)
• ratio of female full-time freshmen (64.2%)
• tuition & fees increase over three years (60.8%)
• non-resident tuition & fees surcharge (58.2%)
• full-time retention rate (48%)
• undergrads who receive student loans (21%)
• disabled students (6%)
• average teaching salary differential (women vs. men, 0.7%)
• foreign students (0%)
• American Indians or Alaska Natives (0%)
• Asians (0%)
• Blacks or African Americans (0%)
• average teaching salary differential (men vs. women, -0.7%)
• alumni who played in the National Football League (0)
• first-year applicants (1,734)
• foreign students (0)
• members of the National Academy of Sciences (0)
• men's basketball Final Four appearances (0)
• Rhodes Scholar alumni (0)
• yearly for-credit students (4,485)
• on-campus yearly property crimes per thousand students (1.19)
• students per faculty member (28)
• annual rainfall (72.6 inches)
• elevation (13 meters)

Sources