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Will it freeze in Billings in the next 7 nights?
No overnight lows at or below 32°F are forecast in Billings during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 35°F. Frost possible.
NWS forecast period: Thu, Nov 5, 6:00 PM MST to Fri, Nov 6, 6:00 AM MST.
1 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 35°F Frost possible · Partly Cloudy
- Fri, Nov 6 40°F Above 36°F · Partly Cloudy
- Sat, Nov 7 40°F Above 36°F · Mostly Clear
- Sun, Nov 8 38°F Above 36°F · Mostly Cloudy
- Mon, Nov 9 38°F Above 36°F · Mostly Cloudy
- Tue, Nov 10 41°F Above 36°F · Mostly Clear
- Wed, Nov 11 42°F Above 36°F · Partly Cloudy
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 Billings
The median first fall hard-freeze date (28°F) is October 16, from NOAA’s 1991–2020 Climate Normals at Billings Logan Intl Airport. This is the 50% probability date, not a forecast for this year.
| Temperature | Last 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 2 · May 15 · May 29 | Sep 16 · Sep 28 · Oct 12 | 135 days |
| 32°F freeze | Apr 20 · May 4 · May 18 | Sep 26 · Oct 7 · Oct 21 | 156 days |
| 28°F hard freeze | Apr 4 · Apr 21 · May 7 | Oct 1 · Oct 16 · Oct 31 | 177 days |
Average high temperature by month
1991–2020 normals at Billings Logan Intl Airport
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 Billings, MT come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Billings Logan Intl Airport (station USW00024033, elevation 3,581 ft), 1.4 mi from Billings. 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 Billings
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Laurel, MT | 14 mi | May 5 | Oct 3 |
| Powell, WY | 71 mi | May 19 | Sep 20 |
| Cody, WY | 91 mi | May 12 | Oct 1 |
| Livingston, MT | 97 mi | May 27 | Sep 14 |
| Lewistown, MT | 97 mi | May 23 | Sep 21 |
| Sheridan, WY | 103 mi | May 21 | Sep 23 |
| Bozeman, MT | 121 mi | May 26 | Sep 22 |
| Belgrade, MT | 127 mi | May 26 | Sep 16 |
| Miles City, MT | 137 mi | May 8 | Sep 30 |
| Great Falls, MT | 176 mi | May 6 | Oct 1 |
Frequently asked questions
When is the last frost in Billings?
On average, the last spring frost (32°F) in Billings is around May 4. In about 1 year in 10 it comes after May 18, and in 9 years in 10 it comes after April 20.
When is the first frost in Billings?
The first fall frost (32°F) usually arrives around October 7. There’s a 10% chance of a freeze by September 26 and a 90% chance by October 21.
Can it frost in Billings 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 May 15.
What growing zone is Billings?
Billings 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 59102. See growing zones in Montana.
More: all Montana frost dates · Montana growing zones · UV index today in Billings · frost vs. freeze