U.S. Frost Dates by Weather Station

NOAA station USC00385493 · South Carolina

Frost Dates for Manning, SC

NOAA weather station Manning (USC00385493), South Carolina · elevation 85 ft (26 m) · hardiness zone 8b*

  • Lower-risk planting dateafter April 11only 1 spring in 10 still has a frost later
  • Typical last frostMarch 2550% chance of a frost after it
  • Typical first fall frostNovember 1150% chance of a frost before it
  • Frost-free season232 daystypical year, 32°F
  • Hardiness zone8bcalculated*

The year at a glance

Frost season at Manning, SCSpring: a frost after March 1 in 9 years out of 10, after March 25 in half of the years, after April 11 in 1 year out of 10. Fall: the first frost comes before October 30 in 1 year out of 10, before November 11 in half of the years, before December 1 in 9 years out of 10. Typical frost-free season: 232 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Mar 25First frost ~Nov 11Frost season at Manning, SCSpring: a frost after March 1 in 9 years out of 10, after March 25 in half of the years, after April 11 in 1 year out of 10. Fall: the first frost comes before October 30 in 1 year out of 10, before November 11 in half of the years, before December 1 in 9 years out of 10. Typical frost-free season: 232 days.JFMAMJJASONDLast frost ~Mar 25First frost ~Nov 11
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 29 years of NOAA records (1991–2020 normals)
ChanceLast frost in spring afterFirst frost in fall before
10% (unlikely)April 11October 30
50% (typical)March 25November 11
90% (likely)March 1December 1
Frost-free season (32°F, 50% chance)
232 days
Hard frost (28°F), last in spring, 50% chance after
March 9
Hard frost (28°F), first in fall, 50% chance before
November 24

The last 15 years (2006–2020 normals)

Typical last frost March 26 (1 day later than the 30-year normal), typical first fall frost November 9 (2 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 Manning: chance of a frost after this dateSpring, chance of a frost after the date: 10% April 11, 20% April 4, 30% April 1, 40% March 29, 50% March 25, 60% March 21, 70% March 16, 80% March 10, 90% March 1. Observed last spring frost in recent years: 2021 April 3, 2022 April 11, 2023 March 22, 2024 February 26, 2025 March 7, 2026 March 29.Spring: last frostChance of a frost after this date10%50%90%Mar 1Apr 1Apr 11Mar 25Mar 12021: April 32022: April 112023: March 222024: February 262025: March 72026: March 29Fall at Manning: chance of a frost before this dateFall, chance of a frost before the date: 10% October 30, 20% November 2, 30% November 5, 40% November 8, 50% November 11, 60% November 15, 70% November 19, 80% November 24, 90% December 1. Observed first fall frost in recent years: 2021 November 20, 2022 October 19, 2023 November 2, 2024 November 22, 2025 November 11.Fall: first frostChance of a frost before this date10%50%90%Nov 1Dec 1Oct 30Nov 11Dec 12021: November 202022: October 192023: November 22024: November 222025: November 11
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 3November 20
2022April 11October 19
2023March 22November 2
2024February 26November 22
2025March 7November 11
2026March 29season not over yet

What these dates mean

Between the two 32 °F 50% dates, March 25 and November 11, there are 232 days that define the central frost-free period for Manning.

For a gardener, the 50% date of March 25 indicates an even chance that a light frost could still arrive later in spring, while the 50% date of November 11 indicates an even chance that a light frost may already have occurred earlier in fall. The cautious spring date to set out tender crops is April 11, which carries only a 10 % chance of a later frost. In autumn the cautious date to finish harvesting tender crops is October 30, with only a 10 % chance that frost has arrived earlier. Planting on March 1 or holding crops until December 1 would be a gamble, each bearing a 90 % chance of frost at the opposite end of the season.

A hard frost at 28 °F—recorded by the median dates March 9 and November 24—can damage plants more severely than a light frost at 32 °F.

How to read the probabilities

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

  • Spring: "10% after April 11" 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 30" 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 Manning, SCNumbered nearest stations: 1 — Andrews, SC — 41 mi; 2 — Florence, SC — 43 mi; 3 — Darlington, SC — 46 mi; 4 — Hartsville, SC — 49 mi; 5 — Columbia University of SC, SC — 51 mi.SC25 mi · 40 km1. Andrews, SC — 41 mi12. Florence, SC — 43 mi23. Darlington, SC — 46 mi34. Hartsville, SC — 49 mi45. Columbia University of SC, SC — 51 mi5
  1. Andrews, SC 41 mi (65 km)
  2. Florence, SC 43 mi (70 km)
  3. Darlington, SC 46 mi (73 km)
  4. Hartsville, SC 49 mi (79 km)
  5. Columbia University of SC, SC 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: 33.6989, -80.1992.