Dixon, WY 82323 Frost Dates
Frost dates for Dixon, WY, ZIP 82323
The last spring frost here typically falls around 06/01, about 277 days from today. The first fall frost typically arrives around 09/18, about 108 frost-free days later.
Dixon sits in USDA Zone 4b (-25 to -20°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.
What to do before the first frost
Zone 4b around Dixon has about 3 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
06/01 is the middle of 30 years of NOAA records, not a promise. Plant by 05/15 and you're betting against frost in roughly 9 years out of 10. 06/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dixon compares
At roughly 108 frost-free days, Dixon places 39,554 of 40,283 ZIP codes in this dataset. Within WY, it ranks 133 of 192.
Learn more
zone vs. frost date explains why Zone 4b and Dixon's frost date answer different questions, and the frost range explains how to read the range around Dixon's dates instead of trusting one.