Last frost date in Moscow, Idaho
April 29
Average last frost in spring. In an early year (1 in 10) it's over by April 7; in a late year (1 in 10) it comes after May 14.
October 2
Average first frost in fall. 1 year in 10 it comes by September 17.
Source: NOAA U.S. Climate Normals 1991–2020, station Pullman Moscow Rgnl AP (USW00094129), 5.3 miles from Moscow, elevation 2,551 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 7 | Apr 29 | May 14 |
| First frost in fall | Sept 17 | Oct 2 | Oct 25 |
Frost-free days in an average year: 159
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 18 | Sept 19 |
| Frost (32°F) | Every year | Apr 29 | Oct 2 |
| Hard freeze (28°F) | Every year | Apr 3 | Oct 18 |
Nights at 32°F or colder in an average year: 119
What to plant now in Moscow
- Spring planting calendar for an average last frost around April 30 Moscow: April 29
- Fall planting calendar for an average first frost around September 30 Moscow: October 2
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 Idaho
- Lewiston 23 mi · last frost Apr 6
- Coeur d'Alene 68 mi · last frost Apr 22
- Sandpoint 109 mi · last frost May 8
- Eagle 206 mi · last frost Apr 30
- Garden City 214 mi · last frost May 17
Updated