When to plant in Newman, CA
USDA Zone 9bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Newman, California — all computed from Newman's nearest NOAA weather station.
A generous ~276-day season lets Newman gardeners direct-sow more and still ripen long-maturity crops like melons and winter squash. Zone 9b is warm enough that Newman can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
Frost probability
NEWMAN · 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 Newman’s own odds, recorded at NEWMAN.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 6 | Apr 7 | Mar 3 | Oct 26 | Nov 14 | Dec 1 |
| 32°F | Apr 21 | Feb 26 | Jan 18 | Nov 12 | Nov 29 | Dec 21 |
| 28°F | Mar 31 | Jan 20 | Dec 21 | Nov 24 | Dec 12 | Jan 16 |
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 Newman, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 26 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.
Newman planting FAQ
When is the last spring frost in Newman, CA?
Plan for the last spring frost in Newman around February 26 (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 Newman, CA?
Expect Newman's first fall frost near November 29 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Newman in?
Newman is in USDA hardiness zone 9b. In zone 9b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Newman?
There are roughly 276 frost-free days in Newman (a long growing season), running from the average last frost around February 26 to the first fall frost near November 29.
When should I plant tomatoes in Newman?
In Newman, start tomato seeds indoors around January 1–January 15, then transplant seedlings outdoors around March 5 once the danger of frost has passed.
Never miss a window in Newman
An email when it’s time to start seeds, transplant, and sow — timed to Newman’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at NEWMAN, 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 Newman, CA — Frost Dates & Zone 9b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00046168. Retrieved from https://blissgarden.com/california/newman.