ZIP Code 59931 Hardiness Zones and Climate Data

ZIP Code 59931 - Rollins Montana is in 2023 USDA Hardiness Zones 6a (-10°F to -5°F), 6b (-5°F to 0°F) and 5b (-15°F to -10°F)

Additional Gardening Related Climate Data for ZIP Code 59931 - Rollins, Montana

2023 Hardiness Zone:Zone 6a: -10°F to -5°F
Zone 6b: -5°F to 0°F
Zone 5b: -15°F to -10°F
2012 Hardiness Zone:Zone 6a: -10°F to -5°F
Zone 5a: -20°F to -15°F
Zone 5b: -15°F to -10°F
1990 Hardiness Zone:Zone 4b: -25F to -20F
Average First Frost Date:Sep. 21 - Sep. 30
Average Last Frost Date:May 11 - May 20
Koppen-Geiger Climate Zone:Dfb - Humid Continental Mild Summer, Wet All Year
Ecoregion:15l - Salish Mountains
Current Drought Status:Exceptional Drought
Heat Zone Days: 1 - 7 days Over 86°F

Annual Climate Data for ZIP Code 59931 - Rollins, MT

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)17212632394650504133261933
Avg Max Temp (°F)31374556657381817056403256
Avg Precip (In.)1.611.251.381.532.642.381.611.341.491.231.751.8420.04

Source Data:

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