Last frost date in Adelanto, CA

Average last frost
March 18

Expect the last frost in Adelanto around March 18. Frost after April 12 happens in only one year out of ten. The first fall frost usually arrives about November 11, which leaves 233 frost-free days. An early freeze before October 27 happens one year in ten.

Safe after (10% risk)
Apr 12
Average first frost
Nov 11
Frost-free season
233 days
Hard freeze (28°F) ends
Feb 22
Next 6 nights in Adelanto

No frost in the next 6 nights

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

  1. ThuOct 2246°
  2. FriOct 2345°
  3. SatOct 2446°
  4. SunOct 2548°
  5. MonOct 2648°
  6. TueOct 2748°
JanFebMarAprMayJunJulAugSepOctNovDecLast frost Mar 18First frost Nov 11233 frost-free daysBlue: chance of 32°F frost. Green: average frost-free season.JFMAMJJASOND233 frost-free days
Frost risk through the year at Victorville, 9.1 miles from Adelanto.

Planting calendar for Adelanto

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

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
Warm-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
TomatoesMar 25–Apr 8
PumpkinsApr 1–Apr 15
SunflowersMar 18–Apr 8
CucumbersApr 1–Apr 8
CornMar 25–Apr 8
Sweet potatoesApr 8–Apr 22
WatermelonApr 1–Apr 15
Green beansMar 25–Apr 15
ZucchiniMar 25–Apr 8
OkraApr 8–Apr 22
PeppersApr 1–Apr 15
BasilMar 25–Apr 8
Butternut squashMar 25–Apr 8
CantaloupeApr 1–Apr 15
EggplantApr 1–Apr 15
Cool-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
PotatoesFeb 18–Mar 4
OnionsFeb 4–Feb 25
CarrotsFeb 25–Apr 1
LettuceMar 4–Mar 25
BroccoliFeb 18–Mar 4
BeetsFeb 18–Apr 1
PeasFeb 4–Feb 18
CabbageFeb 18–Mar 4
RadishesFeb 11–Mar 25
Brussels sproutsMar 4–Mar 18
SpinachFeb 4–Feb 25
CilantroMar 4–Mar 25
KaleFeb 18–Mar 4
Collard greensFeb 18–Mar 4
TurnipsFeb 18–Mar 4
DillMar 18–Apr 1
CeleryMar 25–Apr 1
CauliflowerMar 4–Mar 18
LeeksMar 4–Mar 18
Swiss chardMar 4–Apr 1
ParsleyMar 4–Mar 25
Fall bulbs and garlic
JanFebMarAprMayJunJulAugSepOctNovDec
Tulip bulbsOct 28–Dec 2
GarlicOct 21–Nov 25
Daffodil bulbsOct 14–Nov 25
Perennials
JanFebMarAprMayJunJulAugSepOctNovDec
StrawberriesFeb 18–Mar 4
AsparagusFeb 18–Mar 4

Frost probabilities

ThresholdSpring, 90% chance laterSpring, 50%Spring, 10%Fall, 10% chance earlierFall, 50%Fall, 90%
Light frost, 32°FFeb 23Mar 18Apr 12Oct 27Nov 11Nov 26
Hard freeze, 28°FJan 27Feb 22Mar 19Nov 7Nov 24Dec 11

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 Victorville (USC00049325) sits 9.1 miles from the center of Adelanto at 2,880 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 Adelanto, CA?

The average last frost date in Adelanto is March 18, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 12.

When is the first frost in Adelanto?

The first frost in fall usually comes around November 11. One year in ten it arrives before October 27.

How long is the growing season in Adelanto?

About 233 days between the average last and first frost.

When should I plant tomatoes in Adelanto?

Plant tomato seedlings outside from March 25 to April 8. Start seeds indoors six to eight weeks earlier.

Nearby in California

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