When to plant in Columbus, NE
USDA Zone 5bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Columbus, Nebraska — all computed from Columbus's nearest NOAA weather station.
Zone 5b means Columbus sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
COLUMBUS 3 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 Columbus’s own odds, recorded at COLUMBUS 3 NE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 14 | May 1 | Apr 17 | Sep 23 | Oct 6 | Oct 18 |
| 32°F | May 5 | Apr 21 | Apr 7 | Sep 30 | Oct 15 | Oct 27 |
| 28°F | Apr 26 | Apr 11 | Mar 30 | Oct 9 | Oct 24 | Nov 5 |
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 Columbus, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 32 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.
Columbus planting FAQ
When is the last spring frost in Columbus, NE?
Columbus's average last spring frost falls near April 21 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Columbus, NE?
Expect Columbus's first fall frost near October 15 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Columbus in?
Columbus is in USDA hardiness zone 5b. In zone 5b, winters are cold — pick cold-hardy varieties and protect tender crops.
How long is the growing season in Columbus?
There are roughly 177 frost-free days in Columbus (a moderate growing season), running from the average last frost around April 21 to the first fall frost near October 15.
When should I plant tomatoes in Columbus?
In Columbus, start tomato seeds indoors around February 24–March 10, then transplant seedlings outdoors around April 28 once the danger of frost has passed.
Never miss a window in Columbus
An email when it’s time to start seeds, transplant, and sow — timed to Columbus’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at COLUMBUS 3 NE, 4 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 Columbus, NE — Frost Dates & Zone 5b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00251825. Retrieved from https://blissgarden.com/nebraska/columbus.