Frost dates by ZIP code: The nearest NOAA stations to your ZIP, 1991-2020 normals
Enter a five-digit ZIP code. PlainClimate finds its center (Census Bureau 2024) and the five nearest NOAA stations with frost dates, and shows each station's last spring and first autumn 32°F dates with its distance and elevation.
Frost dates near ZIP 95351
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 95351 in zone 9b (the coldest night of a typical year: 25 to 30°F).
The nearest station, Modesto, CA, is 3 miles from the ZIP's center: its last spring frost comes after January 31 in half of years and after February 25 in one year in ten. By the USDA's method its plant hardiness zone is 9b.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Modesto, CAModesto City County Airport | 3 mi | 73 ft | January 31 | February 25 | December 5 | 9b |
| Turlock, CATurlock #2 | 12 mi | 103 ft | January 6 | January 31 | December 20 | 9b |
| Tracy, CATracy Carbona | 20 mi | 135 ft | February 25 | April 6 | November 26 | – |
| Stockton, CAStockton Metro Airport | 22 mi | 26 ft | February 6 | February 28 | December 1 | 9b |
| Newman, CA | 24 mi | 90 ft | February 26 | April 21 | November 29 | 9a |
Frost comes later in spring at higher and colder stations and earlier in low, open ground: prefer a station at a similar elevation to yours. Hardiness zone in the table: the USDA's rule (the average of each year's coldest night, 1991-2020) applied to the station's own record.
Every frost threshold at Modesto
NOAA publishes the dates for several temperatures and odds. A 30% spring date means a 3-in-10 chance of a later frost (the convention almanacs use); 50% is the median; 10% the cautious date.
| Threshold | Spring, 10% | Spring, 30% | Spring, 50% | Spring, 90% | Autumn, 50% | Autumn, 10% |
|---|---|---|---|---|---|---|
| 36°F (light frost) | March 31 | March 11 | March 1 | February 3 | November 22 | November 8 |
| 32°F | February 25 | February 10 | January 31 | December 31 | December 5 | November 20 |
| 28°F (hard freeze) | February 6 | January 21 | January 8 | December 16 | December 21 | December 1 |
| 24°F | January 22 | January 10 | January 1 | December 13 | December 27 | December 5 |
Source: NOAA NCEI 1991-2020 annual normals; ZIP centers: Census Bureau 2024 Gazetteer; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. Autumn 10%: one year in ten has its first frost before this date.