Electric bills get plenty of focus once it's warm enough for air conditioners to click on, but this summer, it's smart to pay attention to the water bill, too.

All but six states currently have areas experiencing short- or long-term drought conditions, ranging from "abnormally dry" to "exceptional drought," according to U.S. Drought Monitor data from the University of Nebraska-Lincoln's National Drought Mitigation Center. If that's not impetus enough to start conserving, Circle of Blue's Price of Water 2015 report estimates the average monthly cost for a family of four using 100 gallons of water per person per day is up 6 percent compared with last year. The water portion alone can be as high as $150 in some major cities; combined with sewer and stormwater charges, they found, some households are paying more than $300 a month.