Carson, NV 89423 Frost Dates
Frost dates for Carson, NV, ZIP 89423
Typically, the last spring freeze lands around 06/07, roughly 283 days out. The first fall frost typically arrives around 09/28, about 113 frost-free days later.
The USDA Plant Hardiness Zone Map puts Carson in Zone 6b (-5 to 0°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
Zone 6b around Carson has about 4 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
06/07 is the middle of 30 years of NOAA records, not a promise. Plant by 05/21 and you're betting against frost in roughly 9 years out of 10. 06/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Carson compares
About 113 days separate Carson's last and first frost, putting it 39,380 of 40,283 ZIP codes nationally. Within NV, it ranks 199 of 222.
Learn more
zone vs. frost date explains why Zone 6b and Carson's frost date answer different questions, and the frost range explains how to read the range around Carson's dates instead of trusting one.