ZIP Code 48340 Hardiness Zones and Climate Data

ZIP Code 48340 - Pontiac Michigan is in 2023 USDA Hardiness Zones 6a (-10°F to -5°F)

Additional Gardening Related Climate Data for ZIP Code 48340 - Pontiac, Michigan

2023 Hardiness Zone:Zone 6a: -10°F to -5°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 11 - May 20
Koppen-Geiger Climate Zone:Dfa - Humid Continental Hot Summers
Ecoregion:56h - Interlobate Dead Ice Moraines
Heat Zone Days: Rare Over 86°F

Annual Climate Data for ZIP Code 48340 - Pontiac, MI

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)16182636475761605242322239
Avg Max Temp (°F)30344558707982807360473458
Avg Precip (In.)1.591.522.32.812.733.222.823.163.012.552.622.2530.56

Source Data:

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