First and last frost dates for your city
When is the first and last frost in my area?
Two dates anchor every garden calendar: the average last spring frost, when it's finally safe to plant tender crops, and the average first fall frost, the deadline to harvest or protect them. Both can differ by six weeks between cities in the same state.
This tool shows your city's dates from NOAA's 30-year climate normals — the long-term averages weather services use — so you can time planting, hardening off, and fall protection to your actual local climate instead of a seed-packet generalization.
Averages are odds, not guarantees: a typical year sees frost within a week or two of the normal date, but outliers happen. The traditional advice stands — watch the forecast around your dates, and keep row cover handy.
Check a major city
How it works
Frost dates shown here come from NOAA's 1991–2020 Climate Normals — a 30-year average of when temperatures in your area first drop to 32°F in fall and last hit 32°F in spring. The date is a 50% probability estimate: some years frost arrives earlier, some years later. We match your zip code to the nearest official weather station. Because this is a long-term average, it's a planning tool — not a guarantee. Always check the current 10-day forecast before planting tender crops.