U.S. Frost Dates by Weather Station

NOAA station USC00222385 · Mississippi

Frost Dates for D'Lo, MS

NOAA weather station D'Lo 2 SW (USC00222385), Mississippi · elevation 334 ft (102 m) · hardiness zone 8b*

  • Lower-risk planting dateafter April 1only 1 spring in 10 still has a frost later
  • Typical last frostMarch 1050% chance of a frost after it
  • Typical first fall frostNovember 1650% chance of a frost before it
  • Frost-free season252 daystypical year, 32°F
  • Hardiness zone8bcalculated*

The year at a glance

Frost season at D'Lo, MSSpring: a frost after February 17 in 9 years out of 10, after March 10 in half of the years, after April 1 in 1 year out of 10. Fall: the first frost comes before October 31 in 1 year out of 10, before November 16 in half of the years, before December 7 in 9 years out of 10. Typical frost-free season: 252 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Mar 10First frost ~Nov 16Frost season at D'Lo, MSSpring: a frost after February 17 in 9 years out of 10, after March 10 in half of the years, after April 1 in 1 year out of 10. Fall: the first frost comes before October 31 in 1 year out of 10, before November 16 in half of the years, before December 7 in 9 years out of 10. Typical frost-free season: 252 days.JFMAMJJASONDLast frost ~Mar 10First frost ~Nov 16
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 25 years of NOAA records (1991–2020 normals)
ChanceLast frost in spring afterFirst frost in fall before
10% (unlikely)April 1October 31
50% (typical)March 10November 16
90% (likely)February 17December 7
Frost-free season (32°F, 50% chance)
252 days
Hard frost (28°F), last in spring, 50% chance after
February 23
Hard frost (28°F), first in fall, 50% chance before
December 1

The last 15 years (2006–2020 normals)

Typical last frost March 20 (10 days later than the 30-year normal), typical first fall frost November 5 (11 days earlier). Frost-free season 230 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 D'Lo: chance of a frost after this dateSpring, chance of a frost after the date: 10% April 1, 20% March 25, 30% March 19, 40% March 15, 50% March 10, 60% March 5, 70% March 1, 80% February 25, 90% February 17.Spring: last frostChance of a frost after this date10%50%90%Mar 1Apr 1Apr 1Mar 10Feb 17Fall at D'Lo: chance of a frost before this dateFall, chance of a frost before the date: 10% October 31, 20% November 4, 30% November 8, 40% November 12, 50% November 16, 60% November 20, 70% November 25, 80% December 1, 90% December 7.Fall: first frostChance of a frost before this date10%50%90%Nov 1Dec 1Oct 31Nov 16Dec 7
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.

What these dates mean

Setting out tender crops on the early spring date, February 17, is a gamble because there is a 90 % chance of a light frost occurring after that day, while the cautious spring date for tender crops is April 1, when the chance drops to 10 %.

For a gardener in D’Lo, the 50 % dates mark the point of even odds: the median light-frost date in spring is March 10 and the median light-frost date in fall is November 16. The median hard-frost dates are February 23 in spring and December 1 in fall; a hard frost matters more than a light frost because the lower temperature can damage or kill plants that survive a 32 °F frost.

In fall, the cautious date to finish harvesting tender crops is October 31, when only a 10 % chance remains of a light frost occurring earlier. Using the April 1 and October 31 dates gives the lowest risk for tender crops at this station.

How to read the probabilities

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

  • Spring: "10% after April 1" 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 31" 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 D'Lo, MSNumbered nearest stations: 1 — Jackson, MS — 27 mi; 2 — Hazlehurst, MS — 32 mi; 3 — near Brookhaven, MS — 42 mi; 4 — Columbia, MS — 49 mi; 5 — Laurel, MS — 51 mi.MSLAAL25 mi · 40 km1. Jackson, MS — 27 mi12. Hazlehurst, MS — 32 mi23. near Brookhaven, MS — 42 mi34. Columbia, MS — 49 mi45. Laurel, MS — 51 mi5
  1. Jackson, MS 27 mi (43 km)
  2. Hazlehurst, MS 32 mi (51 km)
  3. near Brookhaven, MS 42 mi (67 km)
  4. Columbia, MS 49 mi (79 km)
  5. Laurel, MS 51 mi (83 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: 31.9544, -89.9328.