U.S. Frost Dates by Weather Station

NOAA station USC00290640 · New Mexico

Frost Dates for Augustine, NM

NOAA weather station Augustine 2 E (USC00290640), New Mexico · elevation 7000 ft (2134 m) · hardiness zone 6a*

  • Lower-risk planting dateafter June 6only 1 spring in 10 still has a frost later
  • Typical last frostMay 1950% chance of a frost after it
  • Typical first fall frostOctober 450% chance of a frost before it
  • Frost-free season137 daystypical year, 32°F
  • Hardiness zone6acalculated*

The year at a glance

Frost season at Augustine, NMSpring: a frost after May 5 in 9 years out of 10, after May 19 in half of the years, after June 6 in 1 year out of 10. Fall: the first frost comes before September 23 in 1 year out of 10, before October 4 in half of the years, before October 15 in 9 years out of 10. Typical frost-free season: 137 days.JanFebMarAprMayJunJulAugSepOctNovDecLast frost ~May 19First frost ~Oct 4Frost season at Augustine, NMSpring: a frost after May 5 in 9 years out of 10, after May 19 in half of the years, after June 6 in 1 year out of 10. Fall: the first frost comes before September 23 in 1 year out of 10, before October 4 in half of the years, before October 15 in 9 years out of 10. Typical frost-free season: 137 days.JFMAMJJASONDLast frost ~May 19First frost ~Oct 4
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.Today

Frost dates (32°F)

Probability of frost, based on 25 years of NOAA records (1991–2020 normals)
ChanceLast frost in spring afterFirst frost in fall before
10% (unlikely)June 6September 23
50% (typical)May 19October 4
90% (likely)May 5October 15
Frost-free season (32°F, 50% chance)
137 days
Hard frost (28°F), last in spring, 50% chance after
May 8
Hard frost (28°F), first in fall, 50% chance before
October 13

The last 15 years (2006–2020 normals)

Typical last frost May 18 (1 day earlier than the 30-year normal), typical first fall frost October 5 (1 day later). Frost-free season 139 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 Augustine: chance of a frost after this dateSpring, chance of a frost after the date: 10% June 6, 20% May 31, 30% May 26, 40% May 22, 50% May 19, 60% May 16, 70% May 13, 80% May 10, 90% May 5. Observed last spring frost in recent years: 2021 May 24, 2023 May 12, 2024 May 15, 2025 May 21, 2026 May 21.Spring: last frostChance of a frost after this date10%50%90%May 1Jun 1Jun 6May 19May 52021: May 242023: May 122024: May 152025: May 212026: May 21Fall at Augustine: chance of a frost before this dateFall, chance of a frost before the date: 10% September 23, 20% September 27, 30% September 30, 40% October 2, 50% October 4, 60% October 6, 70% October 8, 80% October 12, 90% October 15. Observed first fall frost in recent years: 2021 October 2, 2022 October 11, 2023 October 4, 2024 October 21, 2025 October 7.Fall: first frostChance of a frost before this date10%50%90%Oct 1Sep 23Oct 4Oct 152021: October 22022: October 112023: October 42024: October 212025: October 7
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
2021May 24October 2
2022incomplete recordOctober 11
2023May 12October 4
2024May 15October 21
2025May 21October 7
2026May 21season not over yet

What these dates mean

June 6 is the cautious spring date for Augustine; with only a 10% chance of a light frost later, a gardener can plan to set out tender crops after that day.

The 50% date is May 19 for spring light frost and October 4 for fall light frost; each marks the point where frost is equally likely to occur later or earlier, so a gardener should treat them as a reference for median risk. The hard-frost 50% dates are May 8 and October 13, indicating when a 28 °F frost has an even chance of happening. September 23 is the cautious fall date, with only a 10% chance that a light frost has arrived earlier, allowing the gardener to finish harvesting tender crops. A hard frost at 28 °F can damage plant tissue that survives a light frost at 32 °F, 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 June 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 23" 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 Augustine, NMNumbered nearest stations: 1 — Bingham, NM — 74 mi; 2 — El Morro National Monument, NM — 78 mi; 3 — Hillsboro, NM — 80 mi; 4 — Albuquerque Valley, NM — 84 mi; 5 — Albuquerque, NM — 88 mi.NMAZ50 mi · 80 km1. Bingham, NM — 74 mi12. El Morro National Monument, NM — 78 mi23. Hillsboro, NM — 80 mi34. Albuquerque Valley, NM — 84 mi45. Albuquerque, NM — 88 mi5
  1. Bingham, NM 74 mi (119 km)
  2. El Morro National Monument, NM 78 mi (126 km)
  3. Hillsboro, NM 80 mi (129 km)
  4. Albuquerque Valley, NM 84 mi (135 km)
  5. Albuquerque, NM 88 mi (142 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: 34.075, -107.6211.