ZIP Code 57772 Hardiness Zones and Climate Data

ZIP Code 57772 - Porcupine South Dakota is in 2023 USDA Hardiness Zones 5a (-20°F to -15°F), 4b (-25°F to -20°F) and 5b (-15°F to -10°F)

Additional Gardening Related Climate Data for ZIP Code 57772 - Porcupine, South Dakota

2023 Hardiness Zone:Zone 5a: -20°F to -15°F
Zone 4b: -25°F to -20°F
Zone 5b: -15°F to -10°F
2012 Hardiness Zone:Zone 5a: -20°F to -15°F
Zone 4b: -25°F to -20°F
1990 Hardiness Zone:Zone 4b: -25F to -20F
Average First Frost Date:Sep. 21 - Sep. 30
Average Last Frost Date:May 21 - May 31
Koppen-Geiger Climate Zone:BSk - Cold Semi-Arid Climate
Ecoregion:25a - Pine Ridge Escarpment
Current Drought Status:Exceptional Drought
Heat Zone Days: 46 - 60 days Over 86°F

Annual Climate Data for ZIP Code 57772 - Porcupine, SD

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)8132130425157554532201132
Avg Max Temp (°F)34404859698087867763453760
Avg Precip (In.).4.471.082.052.972.982.751.731.411.41.66.418.31

Source Data:

2025 plantmaps.com