Kansas climate

Kansas Plant Hardiness Zones

Kansas’s towns run from zone 5b to zone 7a: the average coldest winter night is 3.2°F at Anthony and -10.3°F at Saint Francis.

Hardiness zones in Kansas

In USDA’s colors, neighboring states washed out. Zones follow elevation, coasts and cities down to half a mile. Drawn by WeatherOverTime from the USDA-ARS and Oregon State University PRISM Climate Group 2023 GIS data; this is not the official USDA Plant Hardiness Zone Map.

Map of the 2023 plant hardiness zones across Kansas, from zone 5b to zone 7a, with the state’s border drawn.
  • 5b
  • 6a
  • 6b
  • 7a

Open the live map with plant hardiness zones

Towns by zone

Each town’s 1991-2020 average annual extreme minimum at its center, read from the map’s 800 m grid. Warmest zone first.

7a Zone 7a, 0 to 5°F 75 towns

6b Zone 6b, -5 to 0°F 175 towns

6a Zone 6a, -10 to -5°F 47 towns

5b Zone 5b, -15 to -10°F 1 towns

Counties

At the county’s center; a county with hills or a coast spans several zones.

CountyZone at the centerAverage coldest night
Allen County6b-0.9°F
Anderson County6b-1.6°F
Atchison County6a-5.8°F
Barber County7a0.5°F
Barton County6b-2.3°F
Bourbon County7a0.4°F
Brown County6a-7.5°F
Butler County7a0.1°F
Chase County6b-3.7°F
Chautauqua County7a1.5°F
Cherokee County7a2.1°F
Cheyenne County6a-9.8°F
Clark County6b-2.1°F
Clay County6b-3.7°F
Cloud County6a-5.4°F
Coffey County6b-2.4°F
Comanche County7a1.3°F
Cowley County7a0.8°F
Crawford County7a2.6°F
Decatur County6a-9.3°F
Dickinson County6b-2.2°F
Doniphan County6a-7.9°F
Douglas County6b-3.5°F
Edwards County6b-1.4°F
Elk County7a0.3°F
Ellis County6b-4.2°F
Ellsworth County6b-4.5°F
Finney County6b-5°F
Ford County6b-2.5°F
Franklin County6b-3.1°F
Geary County6b-3.4°F
Gove County6a-6.7°F
Graham County6a-6.5°F
Grant County6b-4.1°F
Gray County6b-3.6°F
Greeley County6a-8.3°F
Greenwood County6b-1.3°F
Hamilton County6a-6.5°F
Harper County7a2.9°F
Harvey County6b-0.6°F
Haskell County6b-3°F
Hodgeman County6b-3.6°F
Jackson County6a-6.3°F
Jefferson County6b-4.7°F
Jewell County6a-7.7°F
Johnson County6b-2.3°F
Kearny County6a-5.6°F
Kingman County7a0°F
Kiowa County6b-1°F
Labette County7a0.7°F
Lane County6a-6.4°F
Leavenworth County6b-4.5°F
Lincoln County6a-5.2°F
Linn County6b-2°F
Logan County6a-8.9°F
Lyon County6b-1.9°F
Marion County6b-2.3°F
Marshall County6a-8.5°F
McPherson County6b-2.1°F
Meade County6b-1.3°F
Miami County6b-2.8°F
Mitchell County6a-5.4°F
Montgomery County7a1.5°F
Morris County6b-4.5°F
Morton County6b-2.1°F
Nemaha County6a-8.1°F
Neosho County7a0.4°F
Ness County6a-6.1°F
Norton County6a-8.4°F
Osage County6b-2.7°F
Osborne County6a-6.1°F
Ottawa County6b-2.8°F
Pawnee County6b-1.8°F
Phillips County6a-6.4°F
Pottawatomie County6a-7.6°F
Pratt County6b-0.4°F
Rawlins County6a-10°F
Reno County6b-1.7°F
Republic County6a-6.1°F
Rice County6b-1.3°F
Riley County6b-4°F
Rooks County6a-6.1°F
Rush County6a-5.7°F
Russell County6b-4.7°F
Saline County6b-1.9°F
Scott County6a-6.4°F
Sedgwick County7a1.7°F
Seward County6b-1.6°F
Shawnee County6b-3.8°F
Sheridan County6a-7.1°F
Sherman County6a-7.8°F
Smith County6a-6.4°F
Stafford County6b-0.7°F
Stanton County6b-2.2°F
Stevens County6b-1.8°F
Sumner County7a2.2°F
Thomas County6a-8.9°F
Trego County6b-4.7°F
Wabaunsee County6b-4.4°F
Wallace County6a-6.4°F
Washington County6a-6.9°F
Wichita County6a-7°F
Wilson County7a0.2°F
Woodson County6b-0.3°F
Wyandotte County6b-2.8°F

The zones

A plant hardiness zone is set by the average of each winter’s single coldest temperature, 1991 to 2020: zones are 10°F apart and each half zone, a and b, 5°F. It says how cold a winter night usually gets, not the coldest it has ever been, and nothing about summer heat, rain or soil. Plant labels give the coldest zone a perennial survives in.

ZoneAverage coldest nightIn Celsius
5b-15 to -10°F-26.1 to -23.3°C
6a-10 to -5°F-23.3 to -20.6°C
6b-5 to 0°F-20.6 to -17.8°C
7a0 to 5°F-17.8 to -15.0°C

Sources

Hardiness zones: USDA Plant Hardiness Zone Map, 2023, Agricultural Research Service, U.S. Department of Agriculture, from the GIS data of the PRISM Climate Group, Oregon State University, which may be freely reproduced and redistributed. Drawn by WeatherOverTime from the USDA-ARS and Oregon State University PRISM Climate Group 2023 GIS data; this is not the official USDA Plant Hardiness Zone Map.