Last frost date in Evanston, Wyoming
June 12
Average last frost in spring. In an early year (1 in 10) it's over by May 26; in a late year (1 in 10) it comes after July 2.
September 12
Average first frost in fall. 1 year in 10 it comes by August 26.
Source: NOAA U.S. Climate Normals 1991–2020, station Evanston 1 E (USC00483100), 0.8 miles from Evanston, elevation 6,825 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | May 26 | June 12 | July 2 |
| First frost in fall | Aug 26 | Sept 12 | Sept 25 |
Frost-free days in an average year: 90
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | — | — |
| Frost (32°F) | Every year | June 12 | Sept 12 |
| Hard freeze (28°F) | Every year | May 24 | Sept 24 |
Nights at 32°F or colder in an average year: 210
What to plant now in Evanston
Nothing in USDA's planting table is in its window in Evanston right now, or opens in the next 45 days.
- Spring planting calendar for an average last frost around June 10 Evanston: June 12
- Fall planting calendar for an average first frost around September 10 Evanston: September 12
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 Wyoming
- Green River 79 mi · last frost May 24
- Rock Springs 93 mi · last frost May 24
- Jackson 153 mi · last frost June 20
- Riverton 180 mi · last frost May 12
- Cody 245 mi · last frost May 12
Updated