Frost dates and planting calendar
Klamath Falls, OR
The typical last spring frost in Klamath Falls is June 9, and the first fall frost is around September 18. Plant peas from Apr 28; plant tomatoes from Jun 9.
NOAA 1991–2020 frost normals, Klamath Falls Airport station. Where these dates come from
About Klamath Falls
Klamath Falls sits at about 4,100 feet beside Upper Klamath Lake, Oregon's largest freshwater lake. The farms around it grow potatoes, hay and grain.
Chance of frost through the year
Frost over in 9 years out of 10: after Jun 26
Tomatoes go out Jun 9 – Jul 7, under frost cover at first
- Very likely
- Likely
- Possible
- Unlikely
In 9 years out of 10, the last spring frost has passed by Jun 26 and the first fall frost holds off until Sep 4.
What to plant now
Turn on JavaScript to see what's in season today. The full calendar is below.
Make a garden plan for Klamath Falls Pick your plants and get a dated, printable to-do list.
High desert. Central Oregon, the high, cold valleys of eastern Oregon, and Idaho mountain towns like McCall and Salmon. Frost is possible almost any month. Use row covers, wall-o-water or cloches for warm crops, and choose short-season varieties.
Gardening in Central Oregon and the high desert. Many gardens here are on light, volcanic pumice soil that drains fast and holds few nutrients, so add compost every year and water often. Nights stay cold even in summer, so keep row covers handy for warm crops.
How the season in Klamath Falls compares
With 101 frost-free days, Klamath Falls has the 83rd-longest season of the 86 Oregon, Washington and Idaho towns we cover. They run from 72 days in McCall to 330 days in Brookings and Gold Beach.
The typical last frost here, June 9, is in the middle of the towns we cover in Central Oregon and the high desert: 21 days later than Madras and 2 days earlier than Burns.
The gap between the typical last frost and the date it's over in 9 years out of 10 is 17 days, about average for the towns on this site. Frost after the typical date still happens about half the time, so plan on covering warm crops until June 26.
The season is too short for sweet potatoes and pumpkins to finish from a normal planting date. Grow short-season varieties, start them indoors early, or use a cold frame or row cover to buy time. Sweet corn, winter squash, peppers, dahlias, eggplant, melons, sunflowers and cosmos also need most of the season.
Planting calendar
Pick a group to see when each plant goes in, or search for one.
Salad greens 7 plants
- SpinachPlant seeds in the ground
- Plant Apr 28 – Jun 2
- Again for fall Jul 24 – Aug 14
- LettucePlant seeds or young plants
- Indoors Mar 17–31
- Plant Apr 28 – Jun 23
- Again for fall Jul 24 – Aug 7
- Swiss chardPlant seeds in the ground
- Plant May 12 – Jul 7
- ArugulaPlant seeds in the ground
- Plant Apr 28 – Jun 9
- Again for fall Jul 31 – Aug 21
- CeleryPlant young plants (starts)
- Indoors Mar 31 – Apr 14
- Plant Jun 9 – Jul 14
- MâchePlant seeds in the ground
- Plant Apr 28 – Jun 2
- Again for fall Jul 17 – Aug 21
- RadicchioPlant seeds or young plants
- Indoors Mar 31 – Apr 14
- Plant May 12 – Jun 16
Cabbage family 9 plants
- KalePlant young plants (starts)
- Indoors Mar 31 – Apr 14
- Plant May 12 – Jun 23
- Again for fall Jul 10–24
- BroccoliPlant young plants (starts)
- Indoors Mar 24 – Apr 7
- Plant May 12 – Jun 16
- CabbagePlant young plants (starts)
- Indoors Mar 24 – Apr 7
- Plant May 12 – Jun 16
- CauliflowerPlant young plants (starts)
- Indoors Mar 24 – Apr 7
- Plant May 12 – Jun 9
- Brussels sproutsPlant young plants (starts)
- Indoors Mar 17–31
- Plant May 12 – Jun 23
- Bok choyPlant seeds or young plants
- Indoors Mar 24 – Apr 7
- Plant Apr 28 – Jun 2
- Again for fall Jul 24 – Aug 7
- KohlrabiPlant seeds or young plants
- Indoors Mar 31 – Apr 14
- Plant May 12 – Jun 23
- Again for fall Jul 17–31
- CollardsPlant young plants (starts)
- Indoors Mar 31 – Apr 14
- Plant May 12 – Jun 23
- Again for fall Jul 10–24
- Mustard greensPlant seeds in the ground
- Plant Apr 28 – Jun 9
- Again for fall Jul 24 – Aug 14
Root vegetables 7 plants
- RadishesPlant seeds in the ground
- Plant Apr 28 – Jun 23
- Again for fall Aug 7–21
- CarrotsPlant seeds in the ground
- Plant May 12 – Jul 7
- BeetsPlant seeds in the ground
- Plant May 12 – Jul 7
- PotatoesPlant seed potatoes
- Plant May 12 – Jun 23
- TurnipsPlant seeds in the ground
- Plant Apr 28 – Jun 9
- Again for fall Jul 17–31
- ParsnipsPlant seeds in the ground
- Plant May 12 – Jun 23
- Sweet potatoesPlant rooted cuttings (slips)
- Plant Jun 16 – Jul 7
Short season here: use transplants, a fast variety and row cover.
Onion family 4 plants
Peas and beans 4 plants
- PeasPlant seeds in the ground
- Plant Apr 28 – Jun 9
- Bush beansPlant seeds in the ground
- Plant Jun 16 – Jul 28
Frost possible until about Jun 26: keep frost cover handy.
- Pole beansPlant seeds in the ground
- Plant Jun 16 – Jul 21
Frost possible until about Jun 26: keep frost cover handy.
- Fava beansPlant seeds in the ground
- Plant Apr 28 – Jun 2
Tomatoes and summer crops 6 plants
- Sweet cornPlant seeds in the ground
- Plant Jun 16 – Jul 21
Tight season: choose an early variety.
- TomatoesPlant young plants (starts)
- Indoors Apr 14–28
- Plant Jun 9 – Jul 7
Frost possible until about Jun 26: keep frost cover handy.
- PeppersPlant young plants (starts)
- Indoors Apr 7–21
- Plant Jun 16 – Jul 7
Tight season: choose an early variety.
- EggplantPlant young plants (starts)
- Indoors Apr 7–21
- Plant Jun 16 – Jul 7
Tight season: choose an early variety.
- TomatillosPlant young plants (starts)
- Indoors Apr 14–28
- Plant Jun 9 – Jul 7
Frost possible until about Jun 26: keep frost cover handy.
- Ground cherriesPlant young plants (starts)
- Indoors Apr 21 – May 5
- Plant Jun 9 – Jul 7
Frost possible until about Jun 26: keep frost cover handy.
Squash, cucumbers and melons 5 plants
- CucumbersPlant seeds or young plants
- Indoors May 12–19
- Plant Jun 9 – Jul 7
Frost possible until about Jun 26: keep frost cover handy.
- Zucchini and summer squashPlant seeds or young plants
- Indoors May 12–19
- Plant Jun 9 – Jul 7
Frost possible until about Jun 26: keep frost cover handy.
- Winter squashPlant seeds or young plants
- Indoors May 12–19
- Plant Jun 9–30
Tight season: choose an early variety.
- MelonsPlant seeds or young plants
- Indoors May 19–26
- Plant Jun 16 – Jul 7
Tight season: choose an early variety.
- PumpkinsPlant seeds or young plants
- Indoors May 12–19
- Plant Jun 9–30
Short season here: use transplants, a fast variety and row cover.
Herbs 13 plants
- BasilPlant young plants (starts)
- Indoors May 5–19
- Plant Jun 16 – Jul 14
Frost possible until about Jun 26: keep frost cover handy.
- CilantroPlant seeds in the ground
- Plant Apr 28 – Jun 16
- Again for fall Jul 31 – Aug 14
- ParsleyPlant seeds or young plants
- Indoors Mar 17–31
- Plant May 12 – Jun 30
- DillPlant seeds in the ground
- Plant May 12 – Jul 14
- ChivesPlant seeds or young plants
- Indoors Mar 17–31
- Plant May 12 – Jul 7
- MintPlant young plants
- Plant May 12 – Jul 7
- RosemaryPlant young plants
- Plant May 12 – Jun 30
- ThymePlant young plants
- Plant May 12 – Jul 7
- OreganoPlant young plants
- Plant May 12 – Jul 7
- LavenderPlant young plants
- Plant May 12 – Jul 7
- SagePlant young plants
- Plant May 12 – Jul 7
- Lemon balmPlant young plants
- Plant May 12 – Jul 7
- TarragonPlant young plants
- Plant May 12 – Jul 7
Berries 10 plants
- StrawberriesPlant young plants
- Plant May 12 – Jun 23
- BlueberriesPlant potted or bare-root bushes
- Plant May 12 – Jun 30
- RaspberriesPlant bare-root canes
- Plant May 12 – Jun 23
- BlackberriesPlant bare-root or potted canes
- Plant Apr 28 – Jun 16
- GrapesPlant bare-root or potted vines
- Plant Apr 28 – Jun 23
- Hardy kiwiPlant potted vines
- Plant May 12 – Jun 30
- HoneyberriesPlant potted bushes
- Plant Apr 28 – Jun 23
- CurrantsPlant bare-root or potted bushes
- Plant Apr 28 – Jun 23
- GooseberriesPlant bare-root or potted bushes
- Plant Apr 28 – Jun 23
- ElderberriesPlant bare-root or potted shrubs
- Plant Apr 28 – Jun 23
Perennial vegetables 5 plants
- AsparagusPlant dormant crowns
- Plant May 12 – Jun 23
- RhubarbPlant dormant crowns
- Plant Apr 28 – Jun 9
- ArtichokesPlant young plants (starts)
- Plant May 12 – Jun 23
- SorrelPlant seeds or young plants
- Plant Apr 28 – Jun 23
- HorseradishPlant root cuttings
- Plant Apr 28 – Jun 9
Fruit and nut trees 11 plants
- Apple treesPlant bare-root or potted trees
- Plant Apr 28 – Jun 23
- Pear treesPlant bare-root or potted trees
- Plant Apr 28 – Jun 23
- Plum treesPlant bare-root or potted trees
- Plant Apr 28 – Jun 23
- Cherry treesPlant bare-root or potted trees
- Plant Apr 28 – Jun 23
- Fig treesPlant potted trees
- Plant May 12 – Jul 7
- Peach treesPlant bare-root or potted trees
- Plant Apr 28 – Jun 23
- Hazelnut treesPlant bare-root or potted trees
- Plant Apr 28 – Jun 23
- Persimmon treesPlant bare-root or potted trees
- Plant Apr 28 – Jun 23
- Asian pear treesPlant bare-root or potted trees
- Plant Apr 28 – Jun 23
- Quince treesPlant bare-root or potted trees
- Plant Apr 28 – Jun 23
- Mulberry treesPlant bare-root or potted trees
- Plant Apr 28 – Jun 23
Native plants 15 plants
- HuckleberriesPlant potted shrubs
- Plant Apr 28 – Jun 23
- Oregon grapePlant potted shrubs
- Plant Apr 28 – Jun 23
- Red-flowering currantPlant potted shrubs
- Plant Apr 28 – Jun 23
- ServiceberryPlant bare-root or potted shrubs
- Plant Apr 28 – Jun 23
- CamasPlant bulbs
- Fall Sep 20 – Oct 20
- ThimbleberryPlant bare-root or potted plants
- Plant Apr 28 – Jun 23
- SalmonberryPlant bare-root or potted shrubs
- Plant Apr 28 – Jun 23
- SalalPlant potted shrubs
- Plant Apr 28 – Jun 23
- KinnikinnickPlant potted plants
- Plant Apr 28 – Jun 23
- Western columbinePlant potted plants or seeds
- Plant Apr 28 – Jun 23
- Douglas asterPlant potted plants
- Plant Apr 28 – Jun 23
- Oregon sunshinePlant potted plants or seeds
- Plant Apr 28 – Jun 23
- Pacific ninebarkPlant bare-root or potted shrubs
- Plant Apr 28 – Jun 23
- Sword fernPlant potted plants
- Plant Apr 28 – Jun 23
- Oregon irisPlant potted plants or divisions
- Plant Apr 28 – Jun 23
Flowers 13 plants
- DahliasPlant tubers
- Plant Jun 9 – Jul 7
Tight season: choose an early variety.
- SunflowersPlant seeds in the ground
- Plant Jun 16 – Jul 28
Tight season: choose an early variety.
- Sweet peasPlant seeds in the ground
- Plant Apr 28 – Jun 2
- TulipsPlant bulbs
- Fall Sep 20 – Oct 20
- DaffodilsPlant bulbs
- Fall Sep 20 – Oct 20
- ZinniasPlant seeds in the ground
- Plant Jun 16 – Jul 28
Frost possible until about Jun 26: keep frost cover handy.
- PeoniesPlant bare-root divisions
- Fall Sep 20 – Oct 20
- CosmosPlant seeds or young plants
- Indoors May 5–19
- Plant Jun 16 – Jul 28
Tight season: choose an early variety.
- NasturtiumsPlant seeds in the ground
- Plant Jun 16 – Jul 28
Frost possible until about Jun 26: keep frost cover handy.
- MarigoldsPlant seeds or young plants
- Indoors Apr 28 – May 12
- Plant Jun 9 – Jul 14
Frost possible until about Jun 26: keep frost cover handy.
- CalendulaPlant seeds in the ground
- Plant May 12 – Jun 30
- RanunculusPlant soaked corms
- Plant May 12 – Jun 16
- SnapdragonsPlant seeds or young plants
- Indoors Mar 3–17
- Plant May 12 – Jun 23
- Start seeds indoors
- Plant in the garden
- Plant again for fall
- Today
- Frost possible
- Frost likely
New to this? Read the beginner's guide or look up a term in the glossary.
ZIP codes that use these dates: any starting with 976, except in towns with their own page (Lakeview). Look up your ZIP.
Where these dates come from
The frost dates for Klamath Falls come from the NOAA weather station at Klamath Falls Airport, about 6 miles southeast of Klamath Falls, at 4,080 feet. It's the closest weather station to Klamath Falls with NOAA's 1991–2020 frost records. It's an airport station, out on open ground, so a garden in town, on a slope or in a low spot can run a few days earlier or later.
They're NOAA's 1991–2020 climate normals: 30-year averages, not a forecast. How we pick each town's station.
Common questions about frost in Klamath Falls
When is the last frost in Klamath Falls?
June 9 in a typical year. Frost is over by June 26 in 9 years out of 10, Tender plants like tomatoes wait longer than that, for warm soil: see the tomato question below.
When is the first frost in Klamath Falls?
Around September 18. It comes as early as September 4 in 1 year out of 10.
When can I plant tomatoes in Klamath Falls?
Set out tomato plants Jun 9 – Jul 7, after starting seeds indoors Apr 14–28. Keep frost cover handy until about Jun 26.
When should I plant garlic in Klamath Falls?
Plant garlic cloves Sep 20 – Oct 20, and harvest next summer when the lower leaves turn brown.
How long is the growing season in Klamath Falls?
About 101 frost-free days, one of the shortest of the 86 Oregon, Washington and Idaho towns we cover.