Last frost date in Wenatchee, WA

Average last frost
April 4

In Wenatchee, the last spring frost comes around April 4 in an average year. Wait until April 19 if you want 90% odds of no more frost. The first fall frost usually arrives about October 28, which leaves 208 frost-free days. An early freeze before October 17 happens one year in ten.

Safe after (10% risk)
Apr 19
Average first frost
Oct 28
Frost-free season
208 days
Hard freeze (28°F) ends
Mar 13
Next 6 nights in Wenatchee

Frost possible in low spots Fri night, low 33°F

National Weather Service forecast, updated Oct 22, 12:57 UTC

  1. ThuOct 2239°
  2. FriOct 2333°possible frost
  3. SatOct 2436°possible frost
  4. SunOct 2537°
  5. MonOct 2635°possible frost
  6. TueOct 2735°possible frost
JanFebMarAprMayJunJulAugSepOctNovDecLast frost Apr 4First frost Oct 28208 frost-free daysBlue: chance of 32°F frost. Green: average frost-free season.JFMAMJJASOND208 frost-free days
Frost risk through the year at Wenatchee, 1.0 miles from Wenatchee.

Planting calendar for Wenatchee

Windows count forward or back from the average frost dates above. Click a crop for dates across Washington.

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
Warm-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
TomatoesApr 11–Apr 25
PumpkinsApr 18–May 2
SunflowersApr 4–Apr 25
CucumbersApr 18–Apr 25
CornApr 11–Apr 25
Sweet potatoesApr 25–May 9
WatermelonApr 18–May 2
Green beansApr 11–May 2
ZucchiniApr 11–Apr 25
OkraApr 25–May 9
PeppersApr 18–May 2
BasilApr 11–Apr 25
Butternut squashApr 11–Apr 25
CantaloupeApr 18–May 2
EggplantApr 18–May 2
Cool-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
PotatoesMar 7–Mar 21
OnionsFeb 21–Mar 14
CarrotsMar 14–Apr 18
LettuceMar 21–Apr 11
BroccoliMar 7–Mar 21
BeetsMar 7–Apr 18
PeasFeb 21–Mar 7
CabbageMar 7–Mar 21
RadishesFeb 28–Apr 11
Brussels sproutsMar 21–Apr 4
SpinachFeb 21–Mar 14
CilantroMar 21–Apr 11
KaleMar 7–Mar 21
Collard greensMar 7–Mar 21
TurnipsMar 7–Mar 21
DillApr 4–Apr 18
CeleryApr 11–Apr 18
CauliflowerMar 21–Apr 4
LeeksMar 21–Apr 4
Swiss chardMar 21–Apr 18
ParsleyMar 21–Apr 11
Fall bulbs and garlic
JanFebMarAprMayJunJulAugSepOctNovDec
Tulip bulbsOct 14–Nov 18
GarlicOct 7–Nov 11
Daffodil bulbsSep 30–Nov 11
Perennials
JanFebMarAprMayJunJulAugSepOctNovDec
StrawberriesMar 7–Mar 21
AsparagusMar 7–Mar 21

Frost probabilities

ThresholdSpring, 90% chance laterSpring, 50%Spring, 10%Fall, 10% chance earlierFall, 50%Fall, 90%
Light frost, 32°FMar 17Apr 4Apr 19Oct 17Oct 28Nov 11
Hard freeze, 28°FMar 1Mar 13Apr 2Oct 26Nov 10Nov 25

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 Wenatchee (USC00459074) sits 1.0 miles from the center of Wenatchee at 626 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 Wenatchee, WA?

The average last frost date in Wenatchee is April 4, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 19.

When is the first frost in Wenatchee?

The first frost in fall usually comes around October 28. One year in ten it arrives before October 17.

How long is the growing season in Wenatchee?

About 208 days between the average last and first frost.

When should I plant tomatoes in Wenatchee?

Plant tomato seedlings outside from April 11 to April 25. Start seeds indoors six to eight weeks earlier.

Nearby in Washington

All 76 cities in Washington