Frost Dates for Sparks, NV 89436

Last spring frost May 21 · First fall frost October 11 · 143 frost-free days · USDA Zone 7a

Frost probability for 89436

Frost10%50%90%
Spring (last frost)June 10May 21April 29
Fall (first frost)September 18October 11November 3

Dates come from NOAA 1971–2000 freeze probabilities at the nearest reporting station (12.9 km away); the 50% date is the median year.

Frost dates by ZIP code in Sparks, NV

ZIPLast spring frost (50%)First fall frost (50%)Zone
89436May 21October 117a
89431May 22October 37a
89434May 21October 117b
89441May 21October 117b
89437May 21October 117b

Month by month in Sparks

MonthWhat to do
JanuaryPlan your garden layout and order seeds. Research varieties suited to your frost dates.
FebruaryStart the slowest-growing crops indoors: onions, leeks, and celery (10–12 weeks before last frost).
MarchStart peppers and eggplant indoors 8–10 weeks before your last frost (around May 21). Start tomatoes about two weeks later, 6–8 weeks before last frost.
AprilStart herbs, basil, and squash indoors (4–6 weeks before frost). Direct sow peas, spinach, and lettuce if soil is workable.
MayLast frost around May 21. Transplant cold-hardy crops (broccoli, kale, cabbage). Harden off tomato and pepper seedlings.
JuneFrost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini.
JulySuccession plant lettuce and greens. Keep beds weeded and watered consistently.
AugustHarvest regularly to encourage production. Monitor for pests and disease.
SeptemberFirst fall frost approaching (around October 11). Transplant fall brassicas. Sow spinach, arugula, and radishes.
OctoberFirst frost around October 11. Harvest tomatoes and peppers before frost. Cover cold-hardy crops with row covers to extend the season.
NovemberHarvest remaining cold-hardy crops: kale, carrots, and beets. Plant garlic bulbs for next year.
DecemberClean up spent plants. Add compost to beds. Rest, review, and plan next year's garden.

What grows in a 143-day season

Frequently Asked Questions

What is the last frost date for Sparks, NV (ZIP 89436)?

The median last spring frost date for Sparks, NV (ZIP code 89436) is around May 21. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area.

What is the first fall frost date in Sparks, NV?

The median first fall frost date for Sparks, NV is around October 11. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses.

How long is the growing season in Sparks, NV?

The frost-free growing season in Sparks is about 143 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side.

What USDA hardiness zone is Sparks, NV?

Based on frost date patterns, Sparks falls approximately in 7a. USDA hardiness zones are determined by average annual minimum winter temperatures and guide both plant selection and planting timing for your location.

When should I start tomatoes indoors in Sparks, NV?

Start tomato seeds indoors 6–8 weeks before your last frost date (around May 21). For Sparks, that's roughly March 26 to April 9. Transplant outdoors 1–2 weeks after your last frost.

Nearby and related