The park has been open on weekends since Feb. 23rd as well as 2 weeks for Spring Break. The park will open every day in the 2019 season on Thursday, May 16th until around mid-August.
I have a Gold Plus Membership & I recently visited on Saturday April 6th and Sunday April 7th. It rained the first 3 hours on the 6th so no outdoor rides were running. It wasn't until around 1pm when everything was up and running. So it was really like 1:00pm to 10:00pm that they were open. And then on the 7th, there was no heavy rain, just light sprinkling, and the rides were working at regular hours 11:00am to 7:00pm. As far as I know, they do not issue rainchecks or refunds. Maybe stop by Guest Services the next time you're there & they might be able to answer any questions you might have when it comes to rain, weather, etc.
If you have a season pass it's free everyday that the park is open. So how do you except to receive free days? It was open last weekend, my family went on Sunday. It's not supposed to rain tomorrow either so you should take advantage of that.
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