Last frost date in Cedar City, UT

Average last frost
May 4

The average last frost in Cedar City is May 4. By May 28 the chance of another 32°F night drops to 1 in 10. The first fall frost usually arrives about October 13, which leaves 159 frost-free days. An early freeze before September 30 happens one year in ten.

Safe after (10% risk)
May 28
Average first frost
Oct 13
Frost-free season
159 days
Hard freeze (28°F) ends
Apr 22
Next 7 nights in Cedar City

Frost possible in low spots Fri night, low 36°F

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

  1. ThuOct 2240°
  2. FriOct 2336°possible frost
  3. SatOct 2435°possible frost
  4. SunOct 2536°possible frost
  5. MonOct 2637°
  6. TueOct 2738°
  7. WedOct 2839°
JanFebMarAprMayJunJulAugSepOctNovDecLast frost May 4First frost Oct 13159 frost-free daysBlue: chance of 32°F frost. Green: average frost-free season.JFMAMJJASOND159 frost-free days
Frost risk through the year at Cedar City, 1.4 miles from Cedar City.

Planting calendar for Cedar City

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

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
Warm-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
TomatoesMay 11–May 25
PumpkinsMay 18–Jun 1
SunflowersMay 4–May 25
CucumbersMay 18–May 25
CornMay 11–May 25
Sweet potatoesMay 25–Jun 8
WatermelonMay 18–Jun 1
Green beansMay 11–Jun 1
ZucchiniMay 11–May 25
OkraMay 25–Jun 8
PeppersMay 18–Jun 1
BasilMay 11–May 25
Butternut squashMay 11–May 25
CantaloupeMay 18–Jun 1
EggplantMay 18–Jun 1
Cool-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
PotatoesApr 6–Apr 20
OnionsMar 23–Apr 13
CarrotsApr 13–May 18
LettuceApr 20–May 11
BroccoliApr 6–Apr 20
BeetsApr 6–May 18
PeasMar 23–Apr 6
CabbageApr 6–Apr 20
RadishesMar 30–May 11
Brussels sproutsApr 20–May 4
SpinachMar 23–Apr 13
CilantroApr 20–May 11
KaleApr 6–Apr 20
Collard greensApr 6–Apr 20
TurnipsApr 6–Apr 20
DillMay 4–May 18
CeleryMay 11–May 18
CauliflowerApr 20–May 4
LeeksApr 20–May 4
Swiss chardApr 20–May 18
ParsleyApr 20–May 11
Fall bulbs and garlic
JanFebMarAprMayJunJulAugSepOctNovDec
Tulip bulbsSep 29–Nov 3
GarlicSep 22–Oct 27
Daffodil bulbsSep 15–Oct 27
Perennials
JanFebMarAprMayJunJulAugSepOctNovDec
StrawberriesApr 6–Apr 20
AsparagusApr 6–Apr 20

Frost probabilities

ThresholdSpring, 90% chance laterSpring, 50%Spring, 10%Fall, 10% chance earlierFall, 50%Fall, 90%
Light frost, 32°FApr 19May 4May 28Sep 30Oct 13Oct 28
Hard freeze, 28°FApr 3Apr 22May 13Oct 6Oct 23Nov 10

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 Cedar City (USC00421259) sits 1.4 miles from the center of Cedar City at 6,090 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 Cedar City, UT?

The average last frost date in Cedar City is May 4, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after May 28.

When is the first frost in Cedar City?

The first frost in fall usually comes around October 13. One year in ten it arrives before September 30.

How long is the growing season in Cedar City?

About 159 days between the average last and first frost.

When should I plant tomatoes in Cedar City?

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

Nearby in Utah

All 47 cities in Utah