Richmond, UT 84333 Frost Dates
When can you plant in Richmond, UT?
Around 05/11 is the usual last spring frost, about 256 days away. The first fall frost typically arrives around 10/05, about 143 frost-free days later.
Richmond sits in USDA Zone 6a (-10 to -5°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
About 5 weeks of growing season left in Richmond before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/11 isn't a guarantee
05/11 is the middle of 30 years of NOAA records, not a promise. Plant by 04/27 and you're betting against frost in roughly 9 years out of 10. 06/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Richmond compares
At roughly 143 frost-free days, Richmond places 36,527 of 40,283 ZIP codes in this dataset. Within UT, it ranks 216 of 344.
Learn more
the frost range covers how to read the range around Richmond's dates instead of trusting one. local microclimates covers what one yard in Richmond can differ from the 84333 normal.