Roosevelt, UT 84066 Frost Dates
When can you plant in Roosevelt, UT?
The last spring frost here typically falls around 05/23, about 268 days from today. The first fall frost typically arrives around 09/22, about 121 frost-free days later.
Zone 5b (-15 to -10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Roosevelt, not a forecast for this year.
What to do before the first frost
About 4 weeks of growing season left in Roosevelt before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/23 is the middle of 30 years of NOAA records, not a promise. Plant by 05/09 and you're betting against frost in roughly 9 years out of 10. 06/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Roosevelt compares
At roughly 121 frost-free days, Roosevelt places 38,998 of 40,283 ZIP codes in this dataset. Within UT, it ranks 284 of 344.
Learn more
the frost range covers how to read the range around Roosevelt's dates instead of trusting one. local microclimates covers what one yard in Roosevelt can differ from the 84066 normal.