When to plant in Salem, OH
USDA Zone 6aSalem, Ohio frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Salem's nearest full-normals station sits about 15 km out, so treat these as a close estimate — local microclimate can nudge your first and last frost. In zone 6a, Salem gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
The average first fall frost in Salem is now 8 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
MILLPORT 4 NE · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Salem’s own odds, recorded at MILLPORT 4 NE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 28 | May 14 | Apr 27 | Sep 21 | Oct 4 | Oct 17 |
| 32°F | May 20 | May 2 | Apr 18 | Oct 1 | Oct 13 | Oct 29 |
| 28°F | May 9 | Apr 20 | Apr 4 | Oct 9 | Oct 26 | Nov 10 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Salem, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 42 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Salem planting FAQ
When is the last spring frost in Salem, OH?
Plan for the last spring frost in Salem around May 2 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Salem, OH?
The first fall frost in Salem typically arrives around October 13 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Salem in?
Salem is in USDA hardiness zone 6a. In zone 6a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Salem?
Salem has about 164 frost-free days — a moderate growing season — between the average last spring frost (May 2) and first fall frost (October 13).
When should I plant tomatoes in Salem?
For Salem, sow tomatoes indoors about March 7–March 21 and move the seedlings out around May 9, after the last spring frost.
Never miss a window in Salem
An email when it’s time to start seeds, transplant, and sow — timed to Salem’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Alliance · 23 km
- Austintown · 23 km
- Youngstown · 28 km
- Niles · 33 km
- Warren · 37 km
- New Castle · 44 km
- Ravenna · 44 km
- Canton · 45 km
Frost dates recorded at MILLPORT 4 NE, 15 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Salem, OH — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00335315. Retrieved from https://blissgarden.com/ohio/salem.