Sparks, NV 89441 Frost Dates
Frost dates for Sparks, NV, ZIP 89441
Around 05/03 is the usual last spring frost, about 248 days away. The first fall frost typically arrives around 10/10, about 157 frost-free days later.
Sparks sits in USDA Zone 7b (5 to 10°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
Zone 7b around Sparks has about 6 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.
Why 05/03 isn't a guarantee
05/03 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sparks compares
Sparks's growing season runs about 157 days, ranking 33,201 of 40,283 US ZIP codes measured here, longest to shortest. Within NV, it ranks 158 of 222.
Learn more
zone vs. frost date explains why Zone 7b and Sparks's frost date answer different questions, and the frost range explains how to read the range around Sparks's dates instead of trusting one.