Climate averages 1991–2020

Lee's Summit weather
in August.

A hot, wet month: the 2nd warmest and the joint 8th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 29.8°C Daytime mean, August
Average low 20.8°C Night-time mean, August
Rainfall 94 mm 9 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Lee's Summit · average highYear overview

August is a hot month in Lee's Summit: daytime highs average 29.8°C and nights cool to about 20.8°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 94 mm of rain on roughly 9 days, which makes August a wet month (the joint 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 41 min on an average August day.

The nearest other city in this atlas is Independence (20 km away). In August its highs average 29.6°C, about as warm as Lee's Summit, with 94 mm of rain.

Among the 498 cities listed in the United States, Lee's Summit ranks joint 253rd of 498 for the warmest August highs and joint 349th of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Lee's Summit is 0.1°C cooler than that mean.

From August to September, average highs fall by 4.4°C to 25.3°C, and monthly rainfall falls from 94 mm to 93 mm.

The annual picture

August in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -10-505101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Lee's Summit climate table

1991–2020
Monthly climate averages for Lee's Summit, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 3.4°C-5.3°C-5.3°C375.99.810 h
February 6.2°C-3.2°C-3.2°C506.110.711 h
March 12.2°C2.0°C2.0°C789.311.912 h
April 17.8°C7.7°C7.7°C12411.213.213 h
May 23.1°C13.7°C13.7°C14312.914.314 h
June 28.2°C19.1°C19.1°C12411.714.815 h
July 30.6°C21.7°C21.7°C949.314.615 h
August, selected 29.8°C20.8°C20.8°C949.013.714 h
September 25.3°C16.2°C16.2°C938.112.512 h
October 18.6°C9.7°C9.7°C858.111.211 h
November 11.3°C3.0°C3.0°C616.710.110 h
December 5.4°C-2.7°C-2.7°C465.89.59 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

August in nearby cities

Distance from Lee's Summit

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Lee's Summit) is explained once on the Lee's Summit year overview and on the Sources, method and limits page.

Kansas City and Independence lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.