U.S. Frost Dates by Weather Station

NOAA station USC00253050 · Nebraska

Frost Dates for Fremont, NE

NOAA weather station Fremont (USC00253050), Nebraska · elevation 1180 ft (360 m) · hardiness zone 5b*

  • Lower-risk planting dateafter May 6only 1 spring in 10 still has a frost later
  • Typical last frostApril 2350% chance of a frost after it
  • Typical first fall frostOctober 1550% chance of a frost before it
  • Frost-free season172 daystypical year, 32°F
  • Hardiness zone5bcalculated*

The year at a glance

Frost season at Fremont, NESpring: a frost after April 9 in 9 years out of 10, after April 23 in half of the years, after May 6 in 1 year out of 10. Fall: the first frost comes before September 29 in 1 year out of 10, before October 15 in half of the years, before October 27 in 9 years out of 10. Typical frost-free season: 172 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Apr 23First frost ~Oct 15Frost season at Fremont, NESpring: a frost after April 9 in 9 years out of 10, after April 23 in half of the years, after May 6 in 1 year out of 10. Fall: the first frost comes before September 29 in 1 year out of 10, before October 15 in half of the years, before October 27 in 9 years out of 10. Typical frost-free season: 172 days.JFMAMJJASONDLast frost ~Apr 23First frost ~Oct 15
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)May 6September 29
50% (typical)April 23October 15
90% (likely)April 9October 27
Frost-free season (32°F, 50% chance)
172 days
Hard frost (28°F), last in spring, 50% chance after
April 13
Hard frost (28°F), first in fall, 50% chance before
October 24

The last 15 years (2006–2020 normals)

Typical last frost April 22 (1 day earlier than the 30-year normal), typical first fall frost October 18 (3 days later). Frost-free season 179 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 Fremont: chance of a frost after this dateSpring, chance of a frost after the date: 10% May 6, 20% May 1, 30% April 29, 40% April 26, 50% April 23, 60% April 21, 70% April 18, 80% April 14, 90% April 9. Observed last spring frost in recent years: 2021 April 22, 2022 April 27, 2023 April 24, 2024 April 20, 2025 April 9, 2026 April 18.Spring: last frostChance of a frost after this date10%50%90%Apr 1May 1May 6Apr 23Apr 92021: April 222022: April 272023: April 242024: April 202025: April 92026: April 18Fall at Fremont: chance of a frost before this dateFall, chance of a frost before the date: 10% September 29, 20% October 5, 30% October 8, 40% October 12, 50% October 15, 60% October 17, 70% October 20, 80% October 23, 90% October 27. Observed first fall frost in recent years: 2021 October 22, 2022 October 8, 2023 October 28, 2024 October 16, 2025 October 30.Fall: first frostChance of a frost before this date10%50%90%Oct 1Nov 1Sep 29Oct 15Oct 272021: October 222022: October 82023: October 282024: October 162025: October 30
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 22October 22
2022April 27October 8
2023April 24October 28
2024April 20October 16
2025April 9October 30
2026April 18season not over yet

What these dates mean

May 6 is the cautious spring date; with only a 10 % chance of a light frost later, a gardener can plan to set out tender crops after this point with low risk.

The 50 % chance dates mark the point where a light frost is equally likely to occur on either side. The 50 % date is April 23, indicating a 50 % chance of a light frost later than this date, and the 50 % date is October 15, indicating a 50 % chance of a light frost earlier than this date. The median hard-frost dates are April 13 in spring and October 24 in fall, showing when a 28 °F freeze is equally probable before or after each. For a cautious fall plan, September 29 carries a 10 % chance of a light frost earlier, allowing the gardener to finish harvesting tender crops with limited risk.

Hard frost at 28 °F can damage plants that survive a 32 °F light frost, making it a greater concern for 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 September 29" 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 Fremont, NENumbered nearest stations: 1 — Mead, NE — 20 mi; 2 — near Ashland, NE — 27 mi; 3 — near Omaha, NE — 31 mi; 4 — West Point, NE — 31 mi; 5 — David City, NE — 37 mi.NEIA25 mi · 40 km1. Mead, NE — 20 mi12. near Ashland, NE — 27 mi23. near Omaha, NE — 31 mi34. West Point, NE — 31 mi45. David City, NE — 37 mi5
  1. Mead, NE 20 mi (32 km)
  2. near Ashland, NE 27 mi (44 km)
  3. near Omaha, NE 31 mi (49 km)
  4. West Point, NE 31 mi (51 km)
  5. David City, NE 37 mi (59 km)

Sources

* Hardiness zone 5b: zone derived from PRISM 2023 grid at the station location (not the official USDA map). Source data: PRISM Group, Oregon State University.

Station coordinates: 41.43, -96.4669.