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Will it freeze in Midvale in the next 7 nights?
No overnight lows at or below 32°F are forecast in Midvale during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 38°F. Above 36°F.
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 38°F Above 36°F · Partly Cloudy
- Fri, Nov 6 36°F Frost possible · Mostly Clear
- Sat, Nov 7 40°F Above 36°F · Mostly Clear
- Sun, Nov 8 43°F Above 36°F · Mostly Clear
- Mon, Nov 9 44°F Above 36°F · Partly Cloudy
- Tue, Nov 10 42°F Above 36°F · Partly Cloudy
- Wed, Nov 11 43°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 Midvale
The median first fall hard-freeze date (28°F) is November 1, from NOAA’s 1991–2020 Climate Normals at Cottonwood Weir. 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 | Apr 25 · May 13 · Jun 9 | Sep 27 · Oct 11 · Oct 27 | 151 days |
| 32°F freeze | Apr 10 · Apr 29 · May 30 | Oct 6 · Oct 22 · Nov 7 | 174 days |
| 28°F hard freeze | Mar 21 · Apr 12 · May 13 | Oct 17 · Nov 1 · Nov 18 | 201 days |
Average high temperature by month
1991–2020 normals at Cottonwood Weir
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 Midvale, UT come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Cottonwood Weir (station USC00421759, elevation 4,986 ft), 5.7 mi from Midvale. 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 Midvale
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Murray, UT | 2.5 mi | Apr 29 | Oct 22 |
| White City, UT | 3.7 mi | Apr 29 | Oct 22 |
| Sandy, UT | 3.7 mi | Apr 29 | Oct 22 |
| Cottonwood Heights, UT | 4.3 mi | Apr 29 | Oct 22 |
| Taylorsville, UT | 4.3 mi | Mar 31 | Nov 8 |
| Holladay, UT | 5.0 mi | Apr 29 | Oct 22 |
| West Jordan, UT | 5.6 mi | Apr 18 | Oct 22 |
| Millcreek, UT | 6.2 mi | Apr 25 | Oct 18 |
| South Salt Lake, UT | 6.2 mi | Mar 31 | Nov 8 |
| Kearns, UT | 6.8 mi | Apr 8 | Oct 31 |
Frequently asked questions
When is the last frost in Midvale?
On average, the last spring frost (32°F) in Midvale is around April 29. In about 1 year in 10 it comes after May 30, and in 9 years in 10 it comes after April 10.
When is the first frost in Midvale?
The first fall frost (32°F) usually arrives around October 22. There’s a 10% chance of a freeze by October 6 and a 90% chance by November 7.
Can it frost in Midvale 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 13.
What growing zone is Midvale?
Midvale is in USDA Plant Hardiness Zone 7b (average annual extreme minimum temperature 5 to 10°F), based on the 2023 USDA map for ZIP code 84047. See growing zones in Utah.
More: all Utah frost dates · Utah growing zones · UV index today in Midvale · frost vs. freeze