What is the hottest month in Gardner, KS?

July is the warmest month, with a normal high of 89°F at Olathe Johnson CO AP.

What is the coldest month in Gardner, KS?

January is the coldest month, with a normal low of 20°F.

What is the wettest month in Gardner, KS?

June has the most precipitation on average, about 5.26 inches.

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Checked Oct 25, 2026

Gardner, KS Climate

1991 to 2020 normals at Olathe Johnson CO AP, 1.8 mi from the center of Gardner, elevation 1087 ft.

Average weather by month

Select a month for daily normals and last year's weather

Month	High	Low	Precip.	Snow
January	39°	20°	1.05 in	--
February	44°	24°	1.50 in	--
March	56°	34°	2.31 in	--
April	66°	44°	3.76 in	--
May	75°	54°	5.08 in	--
June	85°	64°	5.26 in	--
July	89°	68°	4.21 in	--
August	88°	67°	3.95 in	--
September	80°	58°	3.74 in	--
October	68°	46°	3.27 in	--
November	54°	34°	1.91 in	--
December	43°	24°	1.50 in	--
Year	66°		37.54 in	--

Frequently asked questions

What is the hottest month in Gardner, KS?: July is the warmest month, with a normal high of 89°F at Olathe Johnson CO AP.
What is the coldest month in Gardner, KS?: January is the coldest month, with a normal low of 20°F.
What is the wettest month in Gardner, KS?: June has the most precipitation on average, about 5.26 inches.

Today

Gardner, KS forecast

Data sources

U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information · Official site
U.S. Climate Normals 1991-2020 (daily) and GHCN-Daily via Access Data ServiceNOAA National Centers for Environmental Information · Official site

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About this data

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Climate normals are 30-year averages measured at one weather station, which may be miles from the place named here or at a different elevation.

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