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Will it freeze in Prescott in the next 7 nights?
No overnight lows at or below 32°F are forecast in Prescott during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 36°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 36°F Frost possible · Mostly Cloudy
- Fri, Nov 6 37°F Above 36°F · Mostly Clear
- Sat, Nov 7 38°F Above 36°F · Clear
- Sun, Nov 8 41°F Above 36°F · Mostly Clear
- Mon, Nov 9 42°F Above 36°F · Mostly Clear
- Tue, Nov 10 42°F Above 36°F · Mostly Clear
- Wed, Nov 11 41°F Above 36°F · Mostly Clear
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 Prescott
The median first fall hard-freeze date (28°F) is October 31, from NOAA’s 1991–2020 Climate Normals at Prescott. 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 28 · May 12 · May 30 | Sep 29 · Oct 10 · Oct 23 | 150 days |
| 32°F freeze | Apr 14 · Apr 30 · May 15 | Oct 7 · Oct 20 · Nov 4 | 172 days |
| 28°F hard freeze | Mar 28 · Apr 13 · May 2 | Oct 16 · Oct 31 · Nov 15 | 200 days |
Average high temperature by month
1991–2020 normals at Prescott
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 Prescott, AZ come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Prescott (station USC00026796, elevation 5,205 ft), 1.7 mi from Prescott. 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 Prescott
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Prescott Valley, AZ | 7.5 mi | Apr 30 | Oct 20 |
| Chino Valley, AZ | 11 mi | Apr 27 | Oct 24 |
| Cottonwood, AZ | 29 mi | Mar 30 | Nov 10 |
| Camp Verde, AZ | 34 mi | Apr 16 | Oct 30 |
| Sedona, AZ | 42 mi | Apr 1 | Nov 17 |
| Wickenburg, AZ | 46 mi | Mar 7 | Nov 20 |
| Peoria, AZ | 57 mi | Feb 5 | Dec 11 |
| Cave Creek, AZ | 58 mi | Feb 4 | Dec 16 |
| Flagstaff, AZ | 62 mi | Jun 4 | Sep 28 |
| Surprise, AZ | 63 mi | Feb 5 | Dec 11 |
Frequently asked questions
When is the last frost in Prescott?
On average, the last spring frost (32°F) in Prescott is around April 30. In about 1 year in 10 it comes after May 15, and in 9 years in 10 it comes after April 14.
When is the first frost in Prescott?
The first fall frost (32°F) usually arrives around October 20. There’s a 10% chance of a freeze by October 7 and a 90% chance by November 4.
Can it frost in Prescott 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 12.
What growing zone is Prescott?
Prescott 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 86301. See growing zones in Arizona.
More: all Arizona frost dates · Arizona growing zones · UV index today in Prescott · frost vs. freeze