U.S. Frost Dates by Weather Station

NOAA station USC00465353 · West Virginia

Frost Dates for Logan, WV

NOAA weather station Logan (USC00465353), West Virginia · elevation 672 ft (205 m) · hardiness zone 7a*

  • Lower-risk planting dateafter April 21only 1 spring in 10 still has a frost later
  • Typical last frostApril 850% chance of a frost after it
  • Typical first fall frostNovember 250% chance of a frost before it
  • Frost-free season208 daystypical year, 32°F
  • Hardiness zone7acalculated*

The year at a glance

Frost season at Logan, WVSpring: a frost after March 25 in 9 years out of 10, after April 8 in half of the years, after April 21 in 1 year out of 10. Fall: the first frost comes before October 20 in 1 year out of 10, before November 2 in half of the years, before November 15 in 9 years out of 10. Typical frost-free season: 208 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Apr 8First frost ~Nov 2Frost season at Logan, WVSpring: a frost after March 25 in 9 years out of 10, after April 8 in half of the years, after April 21 in 1 year out of 10. Fall: the first frost comes before October 20 in 1 year out of 10, before November 2 in half of the years, before November 15 in 9 years out of 10. Typical frost-free season: 208 days.JFMAMJJASONDLast frost ~Apr 8First frost ~Nov 2
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 28 years of NOAA records (1991–2020 normals)
ChanceLast frost in spring afterFirst frost in fall before
10% (unlikely)April 21October 20
50% (typical)April 8November 2
90% (likely)March 25November 15
Frost-free season (32°F, 50% chance)
208 days
Hard frost (28°F), last in spring, 50% chance after
March 28
Hard frost (28°F), first in fall, 50% chance before
November 13

The last 15 years (2006–2020 normals)

Typical last frost April 8 (same as the 30-year normal), typical first fall frost November 4 (2 days later). Frost-free season 210 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 Logan: chance of a frost after this dateSpring, chance of a frost after the date: 10% April 21, 20% April 17, 30% April 14, 40% April 11, 50% April 8, 60% April 5, 70% April 2, 80% March 31, 90% March 25. Observed last spring frost in recent years: 2022 April 20, 2023 April 9, 2024 March 24, 2025 April 10.Spring: last frostChance of a frost after this date10%50%90%Apr 1May 1Apr 21Apr 8Mar 252022: April 202023: April 92024: March 242025: April 10Fall at Logan: chance of a frost before this dateFall, chance of a frost before the date: 10% October 20, 20% October 25, 30% October 29, 40% November 1, 50% November 2, 60% November 4, 70% November 7, 80% November 10, 90% November 15. Observed first fall frost in recent years: 2021 November 4, 2023 November 2, 2024 November 22, 2025 November 10.Fall: first frostChance of a frost before this date10%50%90%Nov 1Oct 20Nov 2Nov 152021: November 42023: November 22024: November 222025: 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
2021incomplete recordNovember 4
2022April 20incomplete record
2023April 9November 2
2024March 24November 22
2025April 10November 10
2026incomplete recordseason not over yet

What these dates mean

April 21 is the cautious spring date for Logan; with only a ten percent chance of a light frost occurring later, it marks the point when gardeners can plan to set out tender crops. The 50% date for light frost in spring is April 8, meaning there is an even chance of a frost later than this date, while the 90% gamble date of March 25 carries a high risk of frost.

The cautious fall date is October 20, when there is only a ten percent chance that a light frost has arrived earlier, so gardeners can schedule the final harvest of tender crops. For light frost, the median date in fall is November 2, indicating a fifty percent chance of a frost earlier than this date. Hard frost is tracked separately; the 50% spring date is March 28 and the 50% fall date is November 13, and a hard frost at 28 °F 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 21" 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 20" 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 Logan, WVNumbered nearest stations: 1 — Dunlow, WV — 24 mi; 2 — Pineville, WV — 32 mi; 3 — London Locks, WV — 40 mi; 4 — Mullens, WV — 41 mi; 5 — near Charleston, WV — 41 mi.KYVAOH25 mi · 40 km1. Dunlow, WV — 24 mi12. Pineville, WV — 32 mi23. London Locks, WV — 40 mi34. Mullens, WV — 41 mi45. near Charleston, WV — 41 mi5
  1. Dunlow, WV 24 mi (38 km)
  2. Pineville, WV 32 mi (51 km)
  3. London Locks, WV 40 mi (65 km)
  4. Mullens, WV 41 mi (66 km)
  5. near Charleston, WV 41 mi (67 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: 37.8664, -81.9844.