Frost dates for 98619Glenwood, WA
Frost is possible in any month near Glenwood, based on NOAA 1991-2020 records for the Glenwood #2, WA station.
Frost is possible in any month. Even summer nights can drop to freezing at this station, so protect tender plants whenever cold nights are forecast.
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | — | — | 36 days | 100% |
| Frost / freeze (32°F) | — | — | 72 days | 100% |
| Hard freeze (28°F) | Apr 30 · May 23 · Jun 16 | Aug 28 · Sep 16 · Oct 4 | 115 days | 100% |
Where these dates come from
ZIP code 98619 is matched to the NOAA station Glenwood #2, WA, 2 km away, at 1,902 ft elevation (42 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Glenwood #2, WA (used) | 1,902 ft | — | — |
| Mt Adams Rs, WA | 1,950 ft | May 18 | Sep 25 |
| Snowden, WA | 2,415 ft | May 12 | Oct 11 |
| Hood Rvr Exp Stn, OR | 500 ft | Apr 20 | Oct 13 |
Frost dates near Glenwood
- Appleton, WA 98602 · last May 12, first Oct 11
- Trout Lake, WA 98650 · last May 18, first Sep 25
- Wahkiacus, WA 98670 · last May 18, first Sep 25
- Klickitat, WA 98628 · last Apr 20, first Oct 13
- Husum, WA 98623 · last Apr 20, first Oct 13
- Lyle, WA 98635 · last May 13, first Oct 3
- White Salmon, WA 98672 · last Apr 20, first Oct 13
- Bingen, WA 98605 · last May 2, first Oct 9
Frequently asked questions
- When is the last frost in Glenwood, WA?
- Frost is possible in any month at the nearest NOAA station (Glenwood #2, WA), so there is no reliable average last frost date.
- When is the first frost in Glenwood, WA?
- Frost is possible in any month at the nearest NOAA station.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.