Rear right Wheel locking up on 2000 Dodge Grand Caravan

I got in van for first time today and the right rear wheel would not turn. I pumped the brakes, reset the parking brake and popped it a few times. It rained all day yesterday and woke up to snow and temperatures around 20 today. Could the parking brake be frozen on the wheel?

Asked by for the 2000 Dodge Grand Caravan
The brake could be frozen to the drum. This is not uncommon in freezing temperatures. Usually the brake freezing is due to it being full of water and then freezing. Under some circumstances, it's best to leave the park brake off if it could freeze. Park on level ground and put the transmission in PARK to be safe.