Baskin Robbins celebrates March 31 with a sweet deal

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PHOENIX (3TV/CBS 5) -

We're all looking for ways to beat the heat. And now a popular ice cream chain is helping keep things cool.

The deal is available at Baskin Robbins stores only on Tuesday, March 31.

Customers can get single scoops of ice cream for $1.31/scoop (reg. price $2.99/each) or a Classic Two-Scoop Sundae for $3.31/each (reg. price $4.89/each.) The prices are good Tuesday, and will also be available on May 31 and July 31.

This sweet deal is being offered to celebrate the ice cream chain's 70th birthday, as well as its famous "31 flavors.”

31 has always been a magical number for Baskin-Robbins. Originally, the ice cream chain came up with 31 different flavors with the idea that there would be a different flavor for each day of the month. There are actually far more flavors available today. In fact, more than 1,000 varieties have been created over the years.

2015 marks the 70th anniversary of Baskin-Robbins, and naturally the brand decided that March 31 would be the perfect day to host the special promotion.