Pasco, WA Frost Dates
The last spring frost in Pasco usually comes around April 27 and the first fall frost around October 11.
| Spring (last) | Fall (first) | |
|---|---|---|
| Frost, 32°F | April 27 | October 11 |
| Hard freeze, 28°F | April 7 | October 23 |
Growing season: about 168 days.
Frequently asked questions
When is the last frost in Pasco, WA?
The median date of the last spring frost (32°F) is April 27. In half of years the last frost comes earlier and in half it comes later, so waiting a week or two past April 27 lowers the risk for tender plants.
When is the first frost in Pasco?
The median date of the first fall frost (32°F) is October 11, and a hard freeze (28°F) usually follows around October 23.
How long is the growing season in Pasco?
About 168 days between the median last spring frost and first fall frost.
NOAA NCEI U.S. Climate Normals 1991-2020, station USW00024163. Median (50% probability) dates. Low spots and valleys can frost later in spring and earlier in fall than the station.