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Weather in leavenworth in september
Daily low temperatures decrease by 8°F, from 55°F to 47°F, rarely falling below 40°F or exceeding 62°F. Get the monthly weather forecast for Leavenworth, WA, including daily high/low, historical averages, to help you plan ahead. Average temperature: 24℃ (75℉) · Average high temperature: 29℃ (83℉) · Average low temperature: 19℃ (66℉) · Average humidity: 78% · Average sunny days: 13 days. 97°. Daily ; 83° ; 90° ; 96° ; 99° ; 1. In Leavenworth during September average daily high temperatures decrease from 77°F to 66°F and the fraction of time spent overcast or mostly cloudy . Get the monthly weather forecast for Leavenworth, WA, including daily high/low, historical averages, to help you plan ahead. Get the monthly weather forecast for Leavenworth, WA, including daily high/low, historical averages, to help you plan ahead. September, the first month of the autumn in Leavenworth, is still a comfortable month, with temperature in the range of an average low of °F (°C) and an average high of °F . The average minimum temperature (usually the minimum temperature is noted during the night) in Leavenworth in September is °C (°F). It rains. Fall (September through November) Fall daily highs range from °F (°C) and °F (°C), which will feel chilly given the humidity and wind.