U.S. Frost Dates by Weather Station

NOAA station USW00093919 · Mississippi

Frost Dates near McComb, MS

NOAA weather station McComb/Pike Co/John E Lewis Airport (USW00093919), Mississippi · elevation 413 ft (126 m) · hardiness zone 8b*

McComb is the nearest town to the station (4.3 mi away) in GeoNames (CC BY 4.0). The dates below are measured at the station, not in the town itself.

  • Lower-risk planting dateafter April 2only 1 spring in 10 still has a frost later
  • Typical last frostMarch 1150% chance of a frost after it
  • Typical first fall frostNovember 1850% chance of a frost before it
  • Frost-free season253 daystypical year, 32°F
  • Hardiness zone8bcalculated*

The year at a glance

Frost season near McComb, MSSpring: a frost after February 17 in 9 years out of 10, after March 11 in half of the years, after April 2 in 1 year out of 10. Fall: the first frost comes before November 1 in 1 year out of 10, before November 18 in half of the years, before December 7 in 9 years out of 10. Typical frost-free season: 253 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Mar 11First frost ~Nov 18Frost season near McComb, MSSpring: a frost after February 17 in 9 years out of 10, after March 11 in half of the years, after April 2 in 1 year out of 10. Fall: the first frost comes before November 1 in 1 year out of 10, before November 18 in half of the years, before December 7 in 9 years out of 10. Typical frost-free season: 253 days.JFMAMJJASONDLast frost ~Mar 11First frost ~Nov 18
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 26 years of NOAA records (1991–2020 normals)
ChanceLast frost in spring afterFirst frost in fall before
10% (unlikely)April 2November 1
50% (typical)March 11November 18
90% (likely)February 17December 7
Frost-free season (32°F, 50% chance)
253 days
Hard frost (28°F), last in spring, 50% chance after
February 25
Hard frost (28°F), first in fall, 50% chance before
December 1

The last 15 years (2006–2020 normals)

Typical last frost March 8 (3 days earlier than the 30-year normal), typical first fall frost November 19 (1 day later). Frost-free season 253 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 near McComb: chance of a frost after this dateSpring, chance of a frost after the date: 10% April 2, 20% March 26, 30% March 20, 40% March 15, 50% March 11, 60% March 8, 70% March 2, 80% February 25, 90% February 17. Observed last spring frost in recent years: 2021 February 23, 2022 March 13, 2023 March 20, 2024 March 19, 2025 March 21, 2026 March 17.Spring: last frostChance of a frost after this date10%50%90%Mar 1Apr 1Apr 2Mar 11Feb 172021: February 232022: March 132023: March 202024: March 192025: March 212026: March 17Fall near McComb: chance of a frost before this dateFall, chance of a frost before the date: 10% November 1, 20% November 6, 30% November 11, 40% November 15, 50% November 18, 60% November 22, 70% November 26, 80% December 1, 90% December 7. Observed first fall frost in recent years: 2021 November 14, 2022 October 20, 2023 November 2, 2024 November 30, 2025 November 10.Fall: first frostChance of a frost before this date10%50%90%Nov 1Dec 1Nov 1Nov 18Dec 72021: November 142022: October 202023: November 22024: November 302025: November 10
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
2021February 23November 14
2022March 13October 20
2023March 20November 2
2024March 19November 30
2025March 21November 10
2026March 17season not over yet

What these dates mean

April 2 is the cautious spring date for the McComb area; with only a 10 % chance of a light frost later, a gardener can plan to set out tender crops around that time. The 50 % date of March 11 marks the point at which a light frost is equally likely to occur later, so risk rises sharply after it. In the fall, the cautious date is November 1, when there is only a 10 % chance that a light frost has already arrived, allowing the final harvest of tender crops before frost risk climbs. The 50 % date of November 18 indicates even odds of a frost earlier. The 50 % hard-frost dates are February 25 in spring and December 1 in fall; a hard frost at 28 °F can damage or kill plants that survive the milder 32 °F light frost, making it a more serious threat.

How to read the probabilities

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

  • Spring: "10% after April 2" 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 November 1" 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 McComb, MSNumbered nearest stations: 1 — near Brookhaven, MS — 25 mi; 2 — Columbia, MS — 38 mi; 3 — Hazlehurst, MS — 45 mi; 4 — Natchez, MS — 58 mi; 5 — Poplarville, MS — 60 mi.MSLA25 mi · 40 km1. near Brookhaven, MS — 25 mi12. Columbia, MS — 38 mi23. Hazlehurst, MS — 45 mi34. Natchez, MS — 58 mi45. Poplarville, MS — 60 mi5
  1. near Brookhaven, MS 25 mi (40 km)
  2. Columbia, MS 38 mi (61 km)
  3. Hazlehurst, MS 45 mi (72 km)
  4. Natchez, MS 58 mi (94 km)
  5. Poplarville, MS 60 mi (96 km)

Sources

* Hardiness zone 8b: zone derived from PRISM 2023 grid at the station location (not the official USDA map). Source data: PRISM Group, Oregon State University.

Station coordinates: 31.1828, -90.4708.