Dodson, MT 59524 Frost Dates
Dodson, MT: when does the frost end?
The last spring frost here typically falls around 05/24, about 269 days from today. Fall's first freeze usually shows up around 09/22, roughly 118 days after the last spring frost.
Dodson sits in USDA Zone 4a (-30 to -25°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 4 weeks until Dodson's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/11 and only about 1 year in 10 sees frost after that.
Dodson against the rest of the dataset
About 118 days separate Dodson's last and first frost, putting it 39,239 of 40,283 ZIP codes nationally. Within MT, it ranks 235 of 392.
Learn more
Before leaning on 59524's figures: zone vs. frost date explains why Zone 4a and Dodson's frost date answer different questions, while the frost range explains how to read the range around Dodson's dates instead of trusting one.