The Class A affiliate of the Kansas City Royals offered fans the chance to get tickets to Opening Day for the same number, in cents, as the temperature at 8 a.m. ET.
The temperature in Wilmington, Delaware, at that time Monday? Four degrees Fahrenheit.
"It's really cold here, and we want to get the fans thinking about us," said Stefani Rash, the team's director of tickets.
Fans had three ways to get $.04 tickets to Opening Day -- an April 16 matchup against the Frederick Keys. They could show up in person (which many did as Monday was the first day individual tickets went on sale), call the box office or order online. Orders by phone and the Web, however, were charged a $5 handling fee.
Rash said the team sold about 3,600 Opening Day seats, and more than 200 fans took advantage of the chance to buy up to eight tickets for 32 cents total. The team usually sells $6 tickets for general admission and $11 for field box seats.
It's the second year that the Blue Rocks held the promotion. Last year, the price was 20 cents.
While the team leaves money on the table in the short term, the promotion ensues that fans sample the ballpark on the first day it opens, Rash said.
As the bitter cold reached a new level last week, Rash wasn't too sure her department would be making any money at all from the promotion.
"We told fans if it was zero or below, we'd give tickets out for free," she said.
Twelve players on the Kansas City Royals' World Series roster last year at least stopped in Wilmington on their way to the majors.
Weather-Based Promotion Nets Fans Cheap Tickets
Wilmington Blue Rocks general manager Chris Kemple discusses the weather-based promotion that resulted in his team selling tickets for 4 cents each.