Climate change in Benton County, Washington
Since 1979, Benton County, Washington has warmed 2.0°F, with 17 more days above 90°F, 1 more nights above 70°F and 10% less precipitation a year.
- Average temperature: +2.0°F
- Summer highs (Jun–Aug): +4.3°F
- Winter lows (Dec–Feb): +1.3°F
- Precipitation: −10%
- Wettest day of the year: −1%
- Longest dry spell: +18 days
- Days above 90°F: +17 days
- Nights above 70°F: +1 days
- Freezing nights: +2 days
- Frost-free season: +27 days
- Muggy days: +0 days
- Summer heat index (Jun–Aug): +3.4°F
- Extreme fire-weather days: +22 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.