Weather in Kansas City in August

Shoulder season. August is shoulder season in Kansas City — cheaper, quieter, and a genuine gamble. Highs average 30.9 °C, lows 19.4 °C, and rain falls on 12 days — nothing in the month is working against you.

August ranks 8 of 12 in Kansas City: past the worst of the year but short of September, which is the month to book if the dates are open.

Rain on 12 days, 4 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 30.9 °C days and 19.4 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 6 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest August day reached 44.3 °C and the coldest night fell to 9.5 °C, and the wettest single day dropped 82 mm — roughly 64% of the month's rain in one day.

August is moderately variable: 38 mm in the driest year against 243 mm in the wettest, around an average of 128 mm. Roughly two Augusts in three land near that average, and the third does something else entirely.

Wind is light at 8.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 70%.

How August sits in the year

Temperatures hold steady either side: 31.7 °C in July, 30.9 here, 26.8 in September. Nothing about the timing within the month matters much.

Daylight in August

13.7 hours of daylight, losing 1.1 hours across the month. That is between Kansas City's extremes of 14.9 and 9.4 hours, so days are long enough not to constrain the plan.

An inland climate

With no coast nearby, the year swings a fair way — 38.3 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.

How busy it gets

Busy. Popular without being frantic; book the things you care about, improvise the rest.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

August in Kansas City versus nearby

If Kansas City is one option among several, the nearby comparison is worth making. Omaha is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Wichita is the weaker option in August — 2.1 °C warmer, the same number of rain days.

So: August is a compromise. September is 23 points better and is what Kansas City is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Kansas City

See all twelve months in Kansas City, or where else to go in August.