Find your town. See your numbers.
Nineteen Montana cities with their own hardiness zone, frost window, elevation and rainfall — and a page for each one.
19 of these 19 cities have a full written guide so far. Every city shows its own sourced conditions — the numbers a guide would be built on.
Zone 5aBillings Full guide
Zone 5a · ~150 frost-free days · 3,153 ft · Longest season of the big cities
Zone 5bMissoula Full guide
Zone 5b · ~150 frost-free days · 3,198 ft · Cold air pools on the valley floor
Zone 4bBozeman Full guide
Zone 4b · ~126 frost-free days · 4,806 ft · High elevation, short season
Zone 4bGreat Falls Full guide
Zone 4b · ~155 frost-free days · 3,398 ft · Chinook country, long season
Zone 5bKalispell Full guide
Zone 5b · ~110 frost-free days · 2,984 ft · Short season, mild lows
Zone 4b – 5aHelena Full guide
Zone 4b – 5a · ~149 frost-free days · 4,068 ft · One of the driest valleys in the state
Zone 4a – 5aButte Full guide
Zone 4a – 5a · ~92 frost-free days · 5,539 ft · Shortest growing season in the state
Zone 4bBelgrade Full guide
Zone 4b · ~120 frost-free days · 4,452 ft · Gallatin Valley cold drainage
Zone 5a – 5bWhitefish Full guide
Zone 5a – 5b · ~138 frost-free days · 2,998 ft · Shoreline moderation from the lake
Zone 5aLivingston Full guide
Zone 5a · ~116 frost-free days · 4,557 ft · Wind and a narrow window
Zone 5b – 6aHamilton Full guide
Zone 5b – 6a · ~130 frost-free days · 3,625 ft · Bitterroot fruit country
Zone 5b – 6aPolson Full guide
Zone 5b – 6a · ~155 frost-free days · 2,930 ft · Latest first frost in the state
Zone 5a – 5bColumbia Falls Full guide
Zone 5a – 5b · ~110 frost-free days · 3,002 ft · Short season near the park
Zone 4aHavre Full guide
Zone 4a · ~136 frost-free days · 2,493 ft · Wind and dry cold
Zone 4a – 4bMiles City Full guide
Zone 4a – 4b · ~151 frost-free days · 2,362 ft · Long season out on the plains
Zone 4aSidney Full guide
Zone 4a · ~144 frost-free days · 1,967 ft · Lowest elevation in the state
Zone 4aGlendive Full guide
Zone 4a · ~160 frost-free days · 2,053 ft · Longest growing season in the state
Zone 4bLewistown Full guide
Zone 4b · ~143 frost-free days · 3,936 ft · High plains, wetter than expected
Zone 5aRed Lodge Full guide
Zone 5a · ~116 frost-free days · 5,562 ft · Highest town in the state
