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Will it freeze in Coolidge in the next 7 nights?
No overnight lows at or below 32°F are forecast in Coolidge during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 52°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 52°F Above 36°F · Mostly Clear
- Fri, Nov 6 54°F Above 36°F · Mostly Clear
- Sat, Nov 7 56°F Above 36°F · Clear
- Sun, Nov 8 54°F Above 36°F · Mostly Clear
- Mon, Nov 9 55°F Above 36°F · Mostly Clear
- Tue, Nov 10 52°F Above 36°F · Mostly Clear
- Wed, Nov 11 52°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 Coolidge
The median first fall hard-freeze date (28°F) is December 12, from NOAA’s 1991–2020 Climate Normals at Casa Grande Nm. 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 | Feb 16 · Mar 8 · Apr 5 | Nov 4 · Nov 19 · Dec 3 | 251 days |
| 32°F freeze | Jan 22 · Feb 17 · Mar 8 | Nov 12 · Nov 29 · Dec 15 | 284 days |
| 28°F hard freeze | Dec 26 · Jan 26 · Feb 23 | Nov 23 · Dec 12 · Jan 6 | 322 days |
Average high temperature by month
1991–2020 normals at Casa Grande Nm
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 Coolidge, AZ come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Casa Grande Nm (station USC00021314, elevation 1,419 ft), 4.3 mi from Coolidge. 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 Coolidge
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Florence, AZ | 11 mi | Jan 30 | Dec 12 |
| Eloy, AZ | 14 mi | Feb 24 | Nov 28 |
| Casa Grande, AZ | 14 mi | Feb 5 | Dec 6 |
| Queen Creek, AZ | 22 mi | Feb 1 | Dec 11 |
| Maricopa, AZ | 29 mi | Feb 23 | Nov 24 |
| Gilbert, AZ | 29 mi | Feb 1 | Dec 11 |
| Chandler, AZ | 30 mi | Feb 13 | Dec 5 |
| Apache Junction, AZ | 31 mi | Feb 11 | Dec 10 |
| Mesa, AZ | 34 mi | Feb 1 | Dec 10 |
| Guadalupe, AZ | 39 mi | Feb 13 | Dec 5 |
Frequently asked questions
When is the last frost in Coolidge?
On average, the last spring frost (32°F) in Coolidge is around February 17. In about 1 year in 10 it comes after March 8, and in 9 years in 10 it comes after January 22.
When is the first frost in Coolidge?
The first fall frost (32°F) usually arrives around November 29. There’s a 10% chance of a freeze by November 12 and a 90% chance by December 15.
Can it frost in Coolidge 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 March 8.
What growing zone is Coolidge?
Coolidge is in USDA Plant Hardiness Zone 9a (average annual extreme minimum temperature 20 to 25°F), based on the 2023 USDA map for ZIP code 85128. See growing zones in Arizona.
More: all Arizona frost dates · Arizona growing zones · frost vs. freeze