Bluff, UT 86033 Frost Dates
When can you plant in Bluff, UT?
Typically, the last spring freeze lands around 05/07, roughly 252 days out. The first fall frost typically arrives around 10/15, about 159 frost-free days later.
Zone 7a (0 to 5°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 Bluff, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Bluff before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/07 isn't a guarantee
05/07 is the middle of 30 years of NOAA records, not a promise. Plant by 04/23 and you're betting against frost in roughly 9 years out of 10. 05/26 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Bluff compares
Bluff's growing season runs about 159 days, ranking 32,773 of 40,283 US ZIP codes measured here, longest to shortest. Within UT, it ranks 168 of 344.
Learn more
the frost range covers how to read the range around Bluff's dates instead of trusting one. local microclimates covers what one yard in Bluff can differ from the 86033 normal.