Ever since we started our business we have had the yearly question from people about whether they should purchase rain barrels. The question/problem: When it's raining, we don't need one, when it's not raining, it won't fill up so why have one. Our answer is usually the same, it is better to be prepared than to wish you had been.
Remember that just a little bit of rainfall will fill up your rain barrels (100 square feet of roof space will give you about 60 gallons of water!) So use the water as you need it and keep the downspout diverters ready to harvest if the rains become less frequent. If you end up with full rain barrels at the end of the season, treat your trees and shrubs to one last good drink for the fall. If you use them over and over as they fill and provide water for your flowers and crops, then you will be saving money and giving your plants naturally soft water that they don't have to filter. Happy Harvesting!