When to plant in Sherrelwood, CO
USDA Zone 6aEverything below — frost dates, hardiness zone, and what to plant when in Sherrelwood, Colorado — is derived from the closest NOAA station with complete climate normals.
In zone 6a, Sherrelwood gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
NORTHGLENN · 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 Sherrelwood’s own odds, recorded at NORTHGLENN.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 26 | May 12 | Apr 30 | Sep 18 | Oct 1 | Oct 14 |
| 32°F | May 14 | May 2 | Apr 18 | Sep 26 | Oct 11 | Oct 24 |
| 28°F | May 5 | Apr 20 | Apr 4 | Oct 7 | Oct 21 | Nov 4 |
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 Sherrelwood, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 12 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.
Sherrelwood planting FAQ
When is the last spring frost in Sherrelwood, CO?
On average, the last spring frost in Sherrelwood is around May 2 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Sherrelwood, CO?
Expect Sherrelwood's first fall frost near October 11 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Sherrelwood in?
Sherrelwood 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 Sherrelwood?
Sherrelwood has about 162 frost-free days — a moderate growing season — between the average last spring frost (May 2) and first fall frost (October 11).
When should I plant tomatoes in Sherrelwood?
For Sherrelwood, 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 Sherrelwood
An email when it’s time to start seeds, transplant, and sow — timed to Sherrelwood’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Welby · 3 km
- Federal Heights · 3 km
- Berkley · 4 km
- Westminster · 7 km
- Northglenn · 8 km
- Thornton · 11 km
- Wheat Ridge · 11 km
- Arvada · 13 km
Frost dates recorded at NORTHGLENN, 7 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 Sherrelwood, CO — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00055984. Retrieved from https://blissgarden.com/colorado/sherrelwood.