Another warmer than usual month for the Tri-Cities is forecast by the National Weather Service.
Temperatures in May averaged 2.9 degrees above normal in the Tri-Cities, and June also is expected to be warmer than usual, according to the weather service.
The spring season -- March through May -- also was warmer than usual in the Mid-Columbia. Temperatures averaged 2.2 degrees above normal at Hanford, where daily records are kept back to World War II.
Normal highs in the Tri-Cities in June rise from 78 degrees at the start of the month to 86 degrees at the end of the month. Normal lows rise from 54 degrees to 59 degrees through the month.