Last frost date in Douglas, Arizona
March 18
Average last frost in spring. In an early year (1 in 10) it's over by February 27; in a late year (1 in 10) it comes after April 12.
November 13
Average first frost in fall. 1 year in 10 it comes by October 27.
Source: NOAA U.S. Climate Normals 1991–2020, station Douglas (USC00022659), 3.8 miles from Douglas, elevation 4,040 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Feb 27 | Mar 18 | Apr 12 |
| First frost in fall | Oct 27 | Nov 13 | Nov 30 |
Frost-free days in an average year: 235
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 7 | Nov 3 |
| Frost (32°F) | Every year | Mar 18 | Nov 13 |
| Hard freeze (28°F) | Every year | Feb 27 | Nov 25 |
Nights at 32°F or colder in an average year: 60
What to plant now in Douglas
- Mustard greensAug 15 – Nov 1Now
- Garden peasSept 1 – Nov 1Now
- ParsleySept 1 – Nov 15Now
- RadishesSept 1 – Nov 15Now
- SpinachSept 15 – Nov 1Now
- Corn saladOct 1 – Dec 1Now
- Onion setsOct 1 – Dec 1Now
- Upland cressOct 1 – Dec 1Now
- Asparagus plantsDec 1 – Jan 1Soon
- Spring planting calendar for an average last frost around March 20 Douglas: March 18
- Fall planting calendar for an average first frost around November 10 Douglas: November 13
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in Arizona
- Sierra Vista 47 mi · last frost Apr 5
- Nogales 82 mi · last frost Mar 20
- Sahuarita 91 mi · last frost Feb 25
- Tucson 94 mi · last frost Feb 5
- Safford 100 mi · last frost Mar 25
Updated