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 95113
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 95113 in zone 9b (the coldest night of a typical year: 25 to 30°F).
The nearest station, San Jose station, CA, is 1 miles from the ZIP's center: its last spring frost comes after January 2 in half of years and after January 23 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| San Jose station, CA | 1 mi | 67 ft | January 2 | January 23 | December 25 | – |
| San Jose, CA | 3 mi | 51 ft | January 12 | February 14 | December 22 | 10a |
| Los Gatos, CA | 8 mi | 365 ft | February 2 | March 14 | December 6 | – |
| Sunnyvale, CAMoffett Federal Airfield | 10 mi | 39 ft | January 6 | February 4 | December 23 | 10a |
| Mount Hamilton, CA | 14 mi | 4,206 ft | May 3 | June 5 | November 18 | 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 San Jose station
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) | February 27 | February 7 | January 26 | December 27 | December 10 | November 22 |
| 32°F | January 23 | January 10 | January 2 | December 14 | December 25 | December 4 |
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.