U.S. Frost Dates by Weather Station

NOAA station USC00235976 · Missouri

Frost Dates for Neosho, MO

NOAA weather station Neosho (USC00235976), Missouri · elevation 1033 ft (315 m) · hardiness zone 7a*

  • Lower-risk planting dateafter April 25only 1 spring in 10 still has a frost later
  • Typical last frostApril 750% chance of a frost after it
  • Typical first fall frostOctober 3150% chance of a frost before it
  • Frost-free season206 daystypical year, 32°F
  • Hardiness zone7acalculated*

The year at a glance

Frost season at Neosho, MOSpring: a frost after March 18 in 9 years out of 10, after April 7 in half of the years, after April 25 in 1 year out of 10. Fall: the first frost comes before October 18 in 1 year out of 10, before October 31 in half of the years, before November 14 in 9 years out of 10. Typical frost-free season: 206 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Apr 7First frost ~Oct 31Frost season at Neosho, MOSpring: a frost after March 18 in 9 years out of 10, after April 7 in half of the years, after April 25 in 1 year out of 10. Fall: the first frost comes before October 18 in 1 year out of 10, before October 31 in half of the years, before November 14 in 9 years out of 10. Typical frost-free season: 206 days.JFMAMJJASONDLast frost ~Apr 7First frost ~Oct 31
frost likely chance fading 90% → 10% frost-free in a typical yearThe year at a glance. Blue: frost is likely; the gradient fades as the chance drops from 90% to 10%; green: the frost-free part of a typical year.

Frost dates (32°F)

Probability of frost, based on 27 years of NOAA records (1991–2020 normals)
ChanceLast frost in spring afterFirst frost in fall before
10% (unlikely)April 25October 18
50% (typical)April 7October 31
90% (likely)March 18November 14
Frost-free season (32°F, 50% chance)
206 days
Hard frost (28°F), last in spring, 50% chance after
March 27
Hard frost (28°F), first in fall, 50% chance before
November 8

The last 15 years (2006–2020 normals)

Typical last frost April 5 (2 days earlier than the 30-year normal), typical first fall frost October 31. Frost-free season 208 days.

A shorter, more recent NOAA period. The 30-year normals above remain the main reference: 15 years carry more year-to-year noise.

Add these dates to your calendar Yearly reminders for the typical last frost, the lower-risk planting date and the typical first fall frost (.ics).

How the chance of frost changes with the date

Spring at Neosho: chance of a frost after this dateSpring, chance of a frost after the date: 10% April 25, 20% April 18, 30% April 14, 40% April 11, 50% April 7, 60% April 3, 70% March 30, 80% March 26, 90% March 18. Observed last spring frost in recent years: 2021 April 22, 2022 April 10, 2023 March 29, 2024 March 29, 2025 April 7, 2026 March 18.Spring: last frostChance of a frost after this date10%50%90%Apr 1May 1Apr 25Apr 7Mar 182021: April 222022: April 102023: March 292024: March 292025: April 72026: March 18Fall at Neosho: chance of a frost before this dateFall, chance of a frost before the date: 10% October 18, 20% October 22, 30% October 25, 40% October 28, 50% October 31, 60% November 1, 70% November 4, 80% November 8, 90% November 14. Observed first fall frost in recent years: 2021 November 4, 2022 October 12, 2023 October 31, 2024 October 16, 2025 November 1.Fall: first frostChance of a frost before this date10%50%90%Nov 1Oct 18Oct 31Nov 142021: November 42022: October 122023: October 312024: October 162025: November 1
Two charts, because spring and fall answer different questions: in spring, the chance that a frost still comes after a date; in fall, the chance that the first frost has already come before it. NOAA publishes these odds from 10% to 90%, so the lines stop there. ◆ marks the actual date in each recent year.

What actually happened in recent years

Observed dates of the last spring and first fall frost (32°F) at this station; ◆ marks them on the charts above
YearLast spring frostFirst fall frost
2021April 22November 4
2022April 10October 12
2023March 29October 31
2024March 29October 16
2025April 7November 1
2026March 18season not over yet

What these dates mean

The cautious fall date in Neosho for finishing the harvest is October 18, when there is only a 10 % chance that a light frost has arrived. The 50% light-frost dates are April 7 in spring and October 31 in fall; each marks the median point with equal odds of a frost occurring.

For a cautious spring plan the date to set out tender crops is April 25, which carries a 10 % chance of a later frost, while March 18 is a gamble with a 90 % chance. The 50% hard-frost dates are March 27 in spring and November 8 in fall, indicating the median moment for a temperature of 28 °F. A hard frost at 28 °F can damage or kill plants that survive a 32 °F light frost.

How to read the probabilities

The dates are probabilities from 30 years of weather, not a forecast for this year.

  • Spring: "10% after April 25" means that in about one spring out of ten a frost still happens after that date. The 90% date is the earliest: a frost after it happens in most years.
  • Fall: "10% before October 18" means that in about one fall out of ten the first frost arrives before that date.
  • 50% is the typical date: half of the years are earlier, half are later.
  • A light frost (32°F) damages tender plants; a hard frost (28°F) also stops most hardy vegetables.

Nearby weather stations

Map of weather stations near Neosho, MONumbered nearest stations: 1 — Joplin, MO — 21 mi; 2 — Monett, MO — 22 mi; 3 — Gravette, AR — 31 mi; 4 — Columbus, KS — 34 mi; 5 — Billings, MO — 45 mi.OKARKS25 mi · 40 km1. Joplin, MO — 21 mi12. Monett, MO — 22 mi23. Gravette, AR — 31 mi34. Columbus, KS — 34 mi45. Billings, MO — 45 mi5
  1. Joplin, MO 21 mi (34 km)
  2. Monett, MO 22 mi (35 km)
  3. Gravette, AR 31 mi (49 km)
  4. Columbus, KS 34 mi (55 km)
  5. Billings, MO 45 mi (73 km)

Sources

* Hardiness zone 7a: zone derived from PRISM 2023 grid at the station location (not the official USDA map). Source data: PRISM Group, Oregon State University.

Station coordinates: 36.865, -94.3603.