Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Weather Guide
Wentzville, Missouri, United States Average Monthly Weather
Weather score52Mixed annual avg
Best months: August, June, July
Across the year, average daytime temperatures are around 18°C, sunshine averages 7.1h per day, and rainfall totals about 955mm.
Annual weather
Annual averages
Temp
18°C
Rain
955mm
Annual total
Sun
7.1h
Weather score
52
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 78mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.9h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Wentzville, Missouri, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August31°C average high
August is one of Wentzville's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August78mm average rain
August sits near Wentzville's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to February, October, and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August8.9 hours average sun
August is brighter than Wentzville's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
August82 weather score
August is one of Wentzville's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
