Clarkston, UT 84305 Frost Dates
When can you plant in Clarkston, UT?
Around 05/17 is the usual last spring frost, about 262 days away. The first fall frost typically arrives around 09/18, about 121 frost-free days later.
The USDA Plant Hardiness Zone Map puts Clarkston in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 3 weeks of growing season left in Clarkston before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Clarkston's last frost
05/17 is the middle of 30 years of NOAA records, not a promise. Plant by 05/03 and you're betting against frost in roughly 9 years out of 10. 06/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Clarkston compares
About 121 days separate Clarkston's last and first frost, putting it 39,028 of 40,283 ZIP codes nationally. Within UT, it ranks 286 of 344.
Learn more
the frost range covers how to read the range around Clarkston's dates instead of trusting one. local microclimates covers what one yard in Clarkston can differ from the 84305 normal.