U.S. Frost Dates by Weather Station

NOAA station USC00264341 · Nevada

Frost Dates for Lages, NV

NOAA weather station Lages (USC00264341), Nevada · elevation 5960 ft (1817 m) · hardiness zone 5b*

  • Lower-risk planting dateafter June 18only 1 spring in 10 still has a frost later
  • Typical last frostJune 150% chance of a frost after it
  • Typical first fall frostSeptember 2150% chance of a frost before it
  • Frost-free season111 daystypical year, 32°F
  • Hardiness zone5bcalculated*

The year at a glance

Frost season at Lages, NVSpring: a frost after May 15 in 9 years out of 10, after June 1 in half of the years, after June 18 in 1 year out of 10. Fall: the first frost comes before September 9 in 1 year out of 10, before September 21 in half of the years, before October 3 in 9 years out of 10. Typical frost-free season: 111 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~Jun 1First frost ~Sep 21Frost season at Lages, NVSpring: a frost after May 15 in 9 years out of 10, after June 1 in half of the years, after June 18 in 1 year out of 10. Fall: the first frost comes before September 9 in 1 year out of 10, before September 21 in half of the years, before October 3 in 9 years out of 10. Typical frost-free season: 111 days.JFMAMJJASONDLast frost ~Jun 1First frost ~Sep 21
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 30 years of NOAA records (1991–2020 normals)
ChanceLast frost in spring afterFirst frost in fall before
10% (unlikely)June 18September 9
50% (typical)June 1September 21
90% (likely)May 15October 3
Frost-free season (32°F, 50% chance)
111 days
Hard frost (28°F), last in spring, 50% chance after
May 17
Hard frost (28°F), first in fall, 50% chance before
September 29

The last 15 years (2006–2020 normals)

Typical last frost May 31 (1 day earlier than the 30-year normal), typical first fall frost September 22 (1 day later). Frost-free season 113 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 Lages: chance of a frost after this dateSpring, chance of a frost after the date: 10% June 18, 20% June 11, 30% June 7, 40% June 3, 50% June 1, 60% May 29, 70% May 24, 80% May 20, 90% May 15. Observed last spring frost in recent years: 2021 June 11, 2022 June 15, 2023 May 12, 2024 June 18, 2025 June 22, 2026 June 29.Spring: last frostChance of a frost after this date10%50%90%May 1Jun 1Jul 1Jun 18Jun 1May 152021: June 112022: June 152023: May 122024: June 182025: June 222026: June 29Fall at Lages: chance of a frost before this dateFall, chance of a frost before the date: 10% September 9, 20% September 14, 30% September 17, 40% September 19, 50% September 21, 60% September 23, 70% September 26, 80% September 28, 90% October 3. Observed first fall frost in recent years: 2021 September 29, 2022 October 12, 2023 September 23, 2024 September 13, 2025 October 5.Fall: first frostChance of a frost before this date10%50%90%Sep 1Oct 1Sep 9Sep 21Oct 32021: September 292022: October 122023: September 232024: September 132025: October 5
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
2021June 11September 29
2022June 15October 12
2023May 12September 23
2024June 18September 13
2025June 22October 5
2026June 29season not over yet

What these dates mean

The cautious fall date for finishing the harvest in Lages is September 9, when there is only a 10 % chance that a light frost has arrived.

The 50 % light-frost dates are June 1 in spring and September 21 in fall; at those points the odds of a frost later (spring) or earlier (fall) are even. A cautious planting schedule therefore uses the June 18 spring date for setting out tender crops and the September 9 fall date for completing their harvest.

Hard frosts at 28 °F are more damaging than light frosts, and the median hard-frost dates are May 17 and September 29. The 32°F 50 % dates are separated by 111 days, based on 30 years of observations.

How to read the probabilities

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

  • Spring: "10% after June 18" 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 9" 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 Lages, NVNumbered nearest stations: 1 — Ibapah, UT — 33 mi; 2 — McGill, NV — 46 mi; 3 — Ruby Lake NWR, NV — 47 mi; 4 — Partoun, UT — 49 mi; 5 — Callao, UT — 49 mi.NVUT25 mi · 40 km1. Ibapah, UT — 33 mi12. McGill, NV — 46 mi23. Ruby Lake NWR, NV — 47 mi34. Partoun, UT — 49 mi45. Callao, UT — 49 mi5
  1. Ibapah, UT 33 mi (53 km)
  2. McGill, NV 46 mi (74 km)
  3. Ruby Lake NWR, NV 47 mi (76 km)
  4. Partoun, UT 49 mi (79 km)
  5. Callao, UT 49 mi (79 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: 40.0633, -114.6147.