Last frost date in Spokane, Washington
April 26
Average last frost in spring. In an early year (1 in 10) it's over by April 10; in a late year (1 in 10) it comes after May 10.
October 15
Average first frost in fall. 1 year in 10 it comes by September 30.
Source: NOAA U.S. Climate Normals 1991–2020, station Spokane Felts Fld (USW00094176), 5.3 miles from Spokane, elevation 1,953 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Liberty Lake and Spokane Valley, so their frost dates are the same as Spokane's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 10 | Apr 26 | May 10 |
| First frost in fall | Sept 30 | Oct 15 | Oct 31 |
Frost-free days in an average year: 170
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 9 | Oct 1 |
| Frost (32°F) | Every year | Apr 26 | Oct 15 |
| Hard freeze (28°F) | Every year | Apr 4 | Oct 27 |
Nights at 32°F or colder in an average year: 123
What to plant now in Spokane
- Spring planting calendar for an average last frost around April 30 Spokane: April 26
- Fall planting calendar for an average first frost around October 10 Spokane: October 15
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 Washington
- Airway Heights 7 mi · last frost Apr 26
- Cheney 14 mi · last frost May 30
- Pullman 66 mi · last frost May 6
- Moses Lake 94 mi · last frost Apr 27
- Walla Walla 119 mi · last frost Mar 27
Updated