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Will it freeze in South Salt Lake in the next 7 nights?
No overnight lows at or below 32°F are forecast in South Salt Lake 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 44°F Above 36°F · Mostly Clear
- Mon, Nov 9 44°F Above 36°F · Mostly Cloudy
- Tue, Nov 10 43°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 South Salt Lake
The median first fall hard-freeze date (28°F) is November 18, from NOAA’s 1991–2020 Climate Normals at Salt Lake Triad Center. 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 | Mar 28 · Apr 18 · May 9 | Oct 12 · Oct 28 · Nov 13 | 194 days |
| 32°F freeze | Mar 7 · Mar 31 · Apr 19 | Oct 23 · Nov 8 · Nov 25 | 224 days |
| 28°F hard freeze | Feb 17 · Mar 8 · Apr 2 | Nov 1 · Nov 18 · Dec 6 | 255 days |
Average high temperature by month
1991–2020 normals at Salt Lake Triad Center
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 South Salt Lake, UT come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Salt Lake Triad Center (station USC00427606, elevation 4,280 ft), 4.5 mi from South Salt Lake. 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 South Salt Lake
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Millcreek, UT | 3.7 mi | Apr 25 | Oct 18 |
| Murray, UT | 3.7 mi | Apr 29 | Oct 22 |
| Taylorsville, UT | 4.3 mi | Mar 31 | Nov 8 |
| Holladay, UT | 5.0 mi | Apr 29 | Oct 22 |
| Salt Lake City, UT | 5.0 mi | Mar 31 | Nov 8 |
| West Valley City, UT | 6.2 mi | Apr 8 | Oct 31 |
| Midvale, UT | 6.2 mi | Apr 29 | Oct 22 |
| Kearns, UT | 6.8 mi | Apr 8 | Oct 31 |
| Cottonwood Heights, UT | 7.5 mi | Apr 29 | Oct 22 |
| West Jordan, UT | 8.7 mi | Apr 18 | Oct 22 |
Frequently asked questions
When is the last frost in South Salt Lake?
On average, the last spring frost (32°F) in South Salt Lake is around March 31. In about 1 year in 10 it comes after April 19, and in 9 years in 10 it comes after March 7.
When is the first frost in South Salt Lake?
The first fall frost (32°F) usually arrives around November 8. There’s a 10% chance of a freeze by October 23 and a 90% chance by November 25.
Can it frost in South Salt Lake 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 April 18.
What growing zone is South Salt Lake?
South Salt Lake 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 84115. See growing zones in Utah.
More: all Utah frost dates · Utah growing zones · UV index today in South Salt Lake · frost vs. freeze