Checking current alerts… View NWS forecast and alerts.
Will it freeze in Millcreek in the next 7 nights?
No overnight lows at or below 32°F are forecast in Millcreek during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 39°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM MST to Fri, Nov 6, 6:00 AM MST.
No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.
- Tonight 39°F Above 36°F · Partly Cloudy
- Fri, Nov 6 37°F Above 36°F · Mostly Clear
- Sat, Nov 7 41°F Above 36°F · Mostly Clear
- Sun, Nov 8 45°F Above 36°F · Mostly Clear
- Mon, Nov 9 46°F Above 36°F · Partly Cloudy
- Tue, Nov 10 43°F Above 36°F · Partly Cloudy
- Wed, Nov 11 44°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 Millcreek
The median first fall hard-freeze date (28°F) is October 29, from NOAA’s 1991–2020 Climate Normals at Salt Lake City E Bench. 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 24 · May 8 · May 29 | Sep 28 · Oct 8 · Oct 21 | 152 days |
| 32°F freeze | Apr 7 · Apr 25 · May 10 | Oct 5 · Oct 18 · Nov 1 | 175 days |
| 28°F hard freeze | Mar 19 · Apr 7 · Apr 26 | Oct 15 · Oct 29 · Nov 15 | 204 days |
Average high temperature by month
1991–2020 normals at Salt Lake City E Bench
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 Millcreek, UT come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Salt Lake City E Bench (station USC00427655, elevation 4,850 ft), 3.4 mi from Millcreek. 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 Millcreek
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Holladay, UT | 1.9 mi | Apr 29 | Oct 22 |
| South Salt Lake, UT | 3.7 mi | Mar 31 | Nov 8 |
| Murray, UT | 3.7 mi | Apr 29 | Oct 22 |
| Cottonwood Heights, UT | 5.0 mi | Apr 29 | Oct 22 |
| Midvale, UT | 6.2 mi | Apr 29 | Oct 22 |
| Taylorsville, UT | 6.8 mi | Mar 31 | Nov 8 |
| Salt Lake City, UT | 8.1 mi | Mar 31 | Nov 8 |
| Sandy, UT | 8.1 mi | Apr 29 | Oct 22 |
| White City, UT | 8.7 mi | Apr 29 | Oct 22 |
| West Valley City, UT | 9.3 mi | Apr 8 | Oct 31 |
Frequently asked questions
When is the last frost in Millcreek?
On average, the last spring frost (32°F) in Millcreek is around April 25. In about 1 year in 10 it comes after May 10, and in 9 years in 10 it comes after April 7.
When is the first frost in Millcreek?
The first fall frost (32°F) usually arrives around October 18. There’s a 10% chance of a freeze by October 5 and a 90% chance by November 1.
Can it frost in Millcreek 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 8.
What growing zone is Millcreek?
Millcreek 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 84106. See growing zones in Utah.
More: all Utah frost dates · Utah growing zones · UV index today in Millcreek · frost vs. freeze