U.S. Frost Dates by Weather Station

NOAA station USC00125117 · Indiana

Frost Dates near Logansport, IN

NOAA weather station Logansport Cicott St (USC00125117), Indiana · elevation 600 ft (183 m) · hardiness zone 6a*

Logansport is the nearest town to the station (1.7 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 May 6only 1 spring in 10 still has a frost later
  • Typical last frostApril 2050% chance of a frost after it
  • Typical first fall frostOctober 2350% chance of a frost before it
  • Frost-free season185 daystypical year, 32°F
  • Hardiness zone6acalculated*

The year at a glance

Frost season near Logansport, INSpring: a frost after April 6 in 9 years out of 10, after April 20 in half of the years, after May 6 in 1 year out of 10. Fall: the first frost comes before October 11 in 1 year out of 10, before October 23 in half of the years, before November 5 in 9 years out of 10. Typical frost-free season: 185 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Apr 20First frost ~Oct 23Frost season near Logansport, INSpring: a frost after April 6 in 9 years out of 10, after April 20 in half of the years, after May 6 in 1 year out of 10. Fall: the first frost comes before October 11 in 1 year out of 10, before October 23 in half of the years, before November 5 in 9 years out of 10. Typical frost-free season: 185 days.JFMAMJJASONDLast frost ~Apr 20First frost ~Oct 23
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)May 6October 11
50% (typical)April 20October 23
90% (likely)April 6November 5
Frost-free season (32°F, 50% chance)
185 days
Hard frost (28°F), last in spring, 50% chance after
April 8
Hard frost (28°F), first in fall, 50% chance before
November 3

The last 15 years (2006–2020 normals)

Typical last frost April 20 (same as the 30-year normal), typical first fall frost October 26 (3 days later). Frost-free season 186 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 Logansport: chance of a frost after this dateSpring, chance of a frost after the date: 10% May 6, 20% May 1, 30% April 27, 40% April 23, 50% April 20, 60% April 18, 70% April 15, 80% April 11, 90% April 6. Observed last spring frost in recent years: 2021 April 23, 2022 April 28, 2024 April 25, 2025 April 16, 2026 May 4.Spring: last frostChance of a frost after this date10%50%90%Apr 1May 1May 6Apr 20Apr 62021: April 232022: April 282024: April 252025: April 162026: May 4Fall near Logansport: chance of a frost before this dateFall, chance of a frost before the date: 10% October 11, 20% October 15, 30% October 18, 40% October 21, 50% October 23, 60% October 26, 70% October 29, 80% November 1, 90% November 5. Observed first fall frost in recent years: 2022 October 20, 2023 October 31, 2024 October 17, 2025 October 24.Fall: first frostChance of a frost before this date10%50%90%Oct 1Nov 1Oct 11Oct 23Nov 52022: October 202023: October 312024: October 172025: October 24
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 23incomplete record
2022April 28October 20
2023incomplete recordOctober 31
2024April 25October 17
2025April 16October 24
2026May 4season not over yet

What these dates mean

May 6, the cautious spring date, carries a 10 % chance of a light frost later and lets a gardener set out tender crops with relatively low risk. In the fall, October 11 serves as the cautious date, offering a 10 % chance that a light frost has arrived earlier, which guides the timing to finish harvesting those same tender crops.

The 50 % date is April 20, indicating an even chance of a light frost later than this day, while the 50 % date is October 23, marking an even chance of a light frost earlier than this day. The median hard-frost dates are April 8 in spring and November 3 in fall; these are the points where a 28 °F frost is as likely as not.

Because a hard frost at 28 °F can injure plants that survive a light frost at 32 °F, the hard-frost dates matter more for protecting tender crops.

How to read the probabilities

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

  • Spring: "10% after May 6" 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 11" 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 Logansport, INNumbered nearest stations: 1 — Winamac, IN — 22 mi; 2 — Kokomo, IN — 23 mi; 3 — Rochester, IN — 24 mi; 4 — near Frankfort, IN — 32 mi; 5 — West Lafayette, IN — 37 mi.IL25 mi · 40 km1. Winamac, IN — 22 mi12. Kokomo, IN — 23 mi23. Rochester, IN — 24 mi34. near Frankfort, IN — 32 mi45. West Lafayette, IN — 37 mi5
  1. Winamac, IN 22 mi (35 km)
  2. Kokomo, IN 23 mi (37 km)
  3. Rochester, IN 24 mi (38 km)
  4. near Frankfort, IN 32 mi (51 km)
  5. West Lafayette, IN 37 mi (59 km)

Sources

* Hardiness zone 6a: zone derived from PRISM 2023 grid at the station location (not the official USDA map). Source data: PRISM Group, Oregon State University.

Station coordinates: 40.7478, -86.3878.