Purdue officials say the money came from some 85,000 individual donors, along with corporations and foundations.
Forecasters say wind chills could drop into the teens and 20s at times this weekend.
This year's turnout for the Indiana primary could be record-setting.
Indianapolis has seen 13.13 inches of rain in July, beating the previous wettest month on record of 13.12 inches set in 1875.
Indiana set a record for rainfall in the month of June; roads this weekend are the most dangerous predicted by the National Safety Council since 2008.
Indianapolis has received more than 51 inches of snow since December.
Indiana has received 23.3 inches of snow this month, making it the third snowiest January on record.
A record high temperature of 96 degrees was set in Indianapolis on Tuesday.
Indiana’s average temperature was more than three degrees higher than average, making it the second hottest year since 1871.
According to the Indiana Economic Development Corporation, only four of every five jobs promised has materialized over the last year.