Victor, ID 83455 Frost Dates
Victor, ID: when does the frost end?
Typically, the last spring freeze lands around 06/13, roughly 289 days out. Fall's first freeze usually shows up around 09/09, roughly 86 days after the last spring frost.
Victor sits in USDA Zone 5a (-20 to -15°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 2 weeks until Victor's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 06/13 isn't a guarantee
06/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/28 and only about 1 year in 10 sees frost after that.
Victor against the rest of the dataset
At roughly 86 frost-free days, Victor places 39,974 of 40,283 ZIP codes in this dataset. Within ID, it ranks 270 of 320.
Learn more
Before leaning on 83455's figures: zone vs. frost date explains why Zone 5a and Victor's frost date answer different questions, while the frost range explains how to read the range around Victor's dates instead of trusting one.