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Climate & Weather Averages in Lewiston, Idaho, USA. Currently: 55 °F. Clear. (Weather station: Lewiston-Nez Perce County Airport, USA). See more current weather.
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Lewiston weather averages and climate Lewiston, Idaho. Monthly temperature, precipitation and hours of sunshine. A climate graph showing rainfall, temperatures and normals.
Climate and Average Weather Year Round in Lewiston Idaho, United States. In Lewiston, the summers are short, hot, dry, and mostly clear and the winters are very cold and partly cloudy. Over the course of the year, the temperature typically varies from 31°F to 93°F and is rarely below 19°F or above 102°F.
Lewiston, Idaho gets 16 inches of rain, on average, per year. The US average is 38 inches of rain per year. Lewiston averages 13 inches of snow per year. The US average is 28 inches of snow per year. On average, there are 169 sunny days per year in Lewiston. The US average is 205 sunny days.
Lewiston, Idaho - Climate and weather forecast by month. Detailed climate information with charts - average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data.
In Lewiston, precipitation is more abundant during the winter season compared to summer. This climate is considered to be Csa according to the Köppen-Geiger climate classification. The temperature here averages 11.3 °C | 52.3 °F. The rainfall here is around 548 mm | 21.6 inch per year.
Donate. Lewiston, ID's climate averages. Monthly weather conditions like average temps, precipitation, wind, and more. Lewiston's yearly averages for humidity, fog, sun, and snow days.
