Last frost date in Hazel Dell, WA
The average last frost in Hazel Dell is April 26. By May 10 the chance of another 32°F night drops to 1 in 10. The first fall frost usually arrives about October 18, which leaves 177 frost-free days. An early freeze before October 1 happens one year in ten.
- Safe after (10% risk)
- May 10
- Average first frost
- Oct 18
- Frost-free season
- 177 days
- Hard freeze (28°F) ends
- Mar 30
No frost in the next 6 nights
Later than usual: the average first frost here is October 18.
National Weather Service forecast, updated Oct 22, 12:24 UTC
- ThuOct 2239°
- FriOct 2337°
- SatOct 2440°
- SunOct 2542°
- MonOct 2641°
- TueOct 2740°
Planting calendar for Hazel Dell
Windows count forward or back from the average frost dates above. Click a crop for dates across Washington.
TomatoesMay 3–May 17
PumpkinsMay 10–May 24
SunflowersApr 26–May 17
CucumbersMay 10–May 17
CornMay 3–May 17
Sweet potatoesMay 17–May 31
WatermelonMay 10–May 24
Green beansMay 3–May 24
ZucchiniMay 3–May 17
OkraMay 17–May 31
PeppersMay 10–May 24
BasilMay 3–May 17
Butternut squashMay 3–May 17
CantaloupeMay 10–May 24
EggplantMay 10–May 24
PotatoesMar 29–Apr 12
OnionsMar 15–Apr 5
CarrotsApr 5–May 10
LettuceApr 12–May 3
BroccoliMar 29–Apr 12
BeetsMar 29–May 10
PeasMar 15–Mar 29
CabbageMar 29–Apr 12
RadishesMar 22–May 3
Brussels sproutsApr 12–Apr 26
SpinachMar 15–Apr 5
CilantroApr 12–May 3
KaleMar 29–Apr 12
Collard greensMar 29–Apr 12
TurnipsMar 29–Apr 12
DillApr 26–May 10
CeleryMay 3–May 10
CauliflowerApr 12–Apr 26
LeeksApr 12–Apr 26
Swiss chardApr 12–May 10
ParsleyApr 12–May 3
Tulip bulbsOct 4–Nov 8
GarlicSep 27–Nov 1
Daffodil bulbsSep 20–Nov 1
StrawberriesMar 29–Apr 12
AsparagusMar 29–Apr 12Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Apr 7 | Apr 26 | May 10 | Oct 1 | Oct 18 | Nov 8 |
| Hard freeze, 28°F | Mar 8 | Mar 30 | Apr 20 | Oct 16 | Nov 4 | Nov 28 |
Read the spring 10% column as the date after which only one year in ten still gets frost. That is the safer date for tomatoes, peppers and basil.
Where these numbers come from
NOAA station Vancouver 4 NNE (USC00458773) sits 0.3 miles from the center of Hazel Dell at 210 feet. Its averages cover 1991 to 2020. Low spots, valleys and open fields can keep getting frost a week or two after the station stops; city centers and lakeshores usually get less of it.
Questions
When is the last frost in Hazel Dell, WA?
The average last frost date in Hazel Dell is April 26, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after May 10.
When is the first frost in Hazel Dell?
The first frost in fall usually comes around October 18. One year in ten it arrives before October 1.
How long is the growing season in Hazel Dell?
About 177 days between the average last and first frost.
When should I plant tomatoes in Hazel Dell?
Plant tomato seedlings outside from May 3 to May 17. Start seeds indoors six to eight weeks earlier.
Nearby in Washington
- Five CornersApr 26
- VancouverMar 29
- OrchardsApr 26
- Battle GroundApr 26
- CamasMar 16
- LongviewApr 8
- TumwaterApr 29
- LaceyApr 29
- OlympiaApr 29
- GrahamApr 11
- FredericksonApr 11
- SpanawayApr 11