ZIP Code 45780 Hardiness Zones and Climate Data

ZIP Code 45780 - The Plains Ohio is in 2023 USDA Hardiness Zones 6b (-5°F to 0°F)

Additional Gardening Related Climate Data for ZIP Code 45780 - The Plains, Ohio

2023 Hardiness Zone:Zone 6b: -5°F to 0°F
2012 Hardiness Zone:Zone 6a: -10°F to -5°F
1990 Hardiness Zone:Zone 6a: -10F to -5F
Average First Frost Date:Oct. 11 - Oct. 20
Average Last Frost Date:May 1 - May 10
Koppen-Geiger Climate Zone:Dfa - Humid Continental Hot Summers
Ecoregion:70b - Monongahela Transition Zone
Heat Zone Days: Rare Over 86°F

Annual Climate Data for ZIP Code 45780 - The Plains, OH

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)18192836465560585138312339
Avg Max Temp (°F)38425465758284837767534364
Avg Precip (In.)2.752.683.313.154.143.874.243.942.962.553.043.0539.69

Source Data:

2025 plantmaps.com