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 80918
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 80918 in zone 6a (the coldest night of a typical year: -10 to -5°F).
The nearest station, Cumbre Vista - Colorado Springs 1, CO, is 5 miles from the ZIP's center: its last spring frost comes after May 9 in half of years and after May 20 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Cumbre Vista - Colorado Springs 1, CO | 5 mi | 6,942 ft | May 9 | May 20 | October 6 | – |
| Black Forest, CO6 mi WNW | 8 mi | 6,957 ft | May 11 | May 25 | October 6 | 6a |
| Colorado Springs, COColorado Springs Municipal Airport | 9 mi | 6,181 ft | May 3 | May 15 | October 8 | 6a |
| Monument, CO3 mi S | 11 mi | 6,821 ft | May 17 | May 30 | October 1 | – |
| Ruxton Park, CO | 11 mi | 9,060 ft | June 3 | June 23 | September 17 | 5b |
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 Cumbre Vista - Colorado Springs 1
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) | June 1 | May 24 | May 18 | May 8 | September 29 | September 18 |
| 32°F | May 20 | May 13 | May 9 | April 28 | October 6 | September 27 |
| 28°F (hard freeze) | May 11 | May 4 | April 30 | April 16 | October 14 | October 4 |
| 24°F | May 3 | April 26 | April 19 | April 5 | October 21 | October 9 |
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.