Frost dates 2026–2027

Frost dates for Livingston, Montana

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Livingston Mission Field, 6.0 mi away (close match).

Last spring frostMay 27
First fall frostSep 14
108 frost-free days
Last spring frostMay 271 year in 10 after Jun 14
First fall frostSep 141 year in 10 by Aug 27
Growing season108 daysbetween median 32°F dates
Hardiness zoneZone 5a−20 to −15°F average extreme low

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Will it freeze in Livingston in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Tonight: 29°F (Thu, Nov 5, 6:00 PM MST to Fri, Nov 6, 6:00 AM MST).

Tonight: forecast low 29°F. Freeze.

NWS forecast period: Thu, Nov 5, 6:00 PM MST to Fri, Nov 6, 6:00 AM MST.

6 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.

Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.

Frost and freeze probabilities

Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.

These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.

Average first hard freeze in Livingston

The median first fall hard-freeze date (28°F) is September 26, from NOAA’s 1991–2020 Climate Normals at Livingston Mission Field. This is the 50% probability date, not a forecast for this year.

TemperatureLast spring date
90% · 50% · 10% chance of a later freeze
First fall date
10% · 50% · 90% chance of an earlier freeze
Season
36°F frost possible May 31 · Jun 16 · Jul 6 Aug 14 · Sep 1 · Sep 15 76 days
32°F freeze May 13 · May 27 · Jun 14 Aug 27 · Sep 14 · Sep 30 108 days
28°F hard freeze Apr 30 · May 13 · May 30 Sep 8 · Sep 26 · Oct 12 135 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USW00024150. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Livingston Mission Field

Average low temperature by month

Months with lows near or below freezing carry frost risk

Where these frost dates come from

The frost dates for Livingston, MT come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Livingston Mission Field (station USW00024150, elevation 4,643 ft), 6.0 mi from Livingston. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.

Frost dates near Livingston

CityDistanceLast spring frostFirst fall frost
Bozeman, MT 24 mi May 26 Sep 22
Belgrade, MT 31 mi May 26 Sep 16
Laurel, MT 86 mi May 5 Oct 3
Helena, MT 95 mi May 9 Sep 30
Billings, MT 97 mi May 4 Oct 7
Butte, MT 103 mi Jun 13 Sep 5
Powell, WY 107 mi May 19 Sep 20
Cody, WY 107 mi May 12 Oct 1
Lewistown, MT 109 mi May 23 Sep 21
Anaconda, MT 128 mi Jun 1 Sep 14

Frequently asked questions

When is the last frost in Livingston?

On average, the last spring frost (32°F) in Livingston is around May 27. In about 1 year in 10 it comes after June 14, and in 9 years in 10 it comes after May 13.

When is the first frost in Livingston?

The first fall frost (32°F) usually arrives around September 14. There’s a 10% chance of a freeze by August 27 and a 90% chance by September 30.

Can it frost in Livingston after the last frost date?

Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after June 16.

What growing zone is Livingston?

Livingston is in USDA Plant Hardiness Zone 5a (average annual extreme minimum temperature −20 to −15°F), based on the 2023 USDA map for ZIP code 59047. See growing zones in Montana.

More: all Montana frost dates · Montana growing zones · frost vs. freeze