Protect your investment; winterize your rain barrels. Start by draining the water before freezing temperatures arrive. Disconnect all hoses (and get the ones attached to your house while you’re out.) Disconnect the barrel from your downspout- seal up the connection with a stopper and re-direct the downspout away from the foundation of your house. Clean any debris from the filter and the barrel. Finally, store your barrel upside-down to prevent snowmelt from accumulating inside.
Here is a quick video demonstration.