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 47708
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 47708 in zone 7a (the coldest night of a typical year: 0 to 5°F).
The nearest station, Evansville Museum, IN, is 1 miles from the ZIP's center: its last spring frost comes after March 29 in half of years and after April 11 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Evansville Museum, IN | 1 mi | 374 ft | March 29 | April 11 | November 10 | – |
| Evansville, INEvansville Regional Airport | 6 mi | 400 ft | April 4 | April 19 | October 29 | 7a |
| Newburgh, INNewburgh Lock and Dam | 11 mi | 380 ft | April 3 | April 17 | November 2 | – |
| Henderson, KYHenderson State Police | 13 mi | 420 ft | April 9 | April 24 | October 26 | – |
| Henderson (8 mi SSW), KY | 16 mi | 449 ft | April 4 | April 19 | October 29 | 7a |
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 Evansville Museum
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) | April 28 | April 14 | April 7 | March 25 | October 30 | October 15 |
| 32°F | April 11 | April 2 | March 29 | March 14 | November 10 | October 27 |
| 28°F (hard freeze) | March 31 | March 24 | March 18 | March 1 | November 20 | November 5 |
| 24°F | March 23 | March 15 | March 8 | February 15 | December 1 | November 13 |
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.