Last frost date in Pueblo, CO

Average last frost
April 30

In Pueblo, the last spring frost comes around April 30 in an average year. Wait until May 12 if you want 90% odds of no more frost. The first fall frost usually arrives about October 9, which leaves 162 frost-free days. An early freeze before September 28 happens one year in ten.

Safe after (10% risk)
May 12
Average first frost
Oct 9
Frost-free season
162 days
Hard freeze (28°F) ends
Apr 18
Next 7 nights in Pueblo

Frost possible in low spots Mon night, low 35°F

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

  1. ThuOct 2254°
  2. FriOct 2351°
  3. SatOct 2444°
  4. SunOct 2539°
  5. MonOct 2635°possible frost
  6. TueOct 2737°
  7. WedOct 2838°
JanFebMarAprMayJunJulAugSepOctNovDecLast frost Apr 30First frost Oct 9162 frost-free daysBlue: chance of 32°F frost. Green: average frost-free season.JFMAMJJASOND162 frost-free days
Frost risk through the year at Wfo Pueblo, 4.9 miles from Pueblo.

Planting calendar for Pueblo

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

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
Warm-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
TomatoesMay 7–May 21
PumpkinsMay 14–May 28
SunflowersApr 30–May 21
CucumbersMay 14–May 21
CornMay 7–May 21
Sweet potatoesMay 21–Jun 4
WatermelonMay 14–May 28
Green beansMay 7–May 28
ZucchiniMay 7–May 21
OkraMay 21–Jun 4
PeppersMay 14–May 28
BasilMay 7–May 21
Butternut squashMay 7–May 21
CantaloupeMay 14–May 28
EggplantMay 14–May 28
Cool-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
PotatoesApr 2–Apr 16
OnionsMar 19–Apr 9
CarrotsApr 9–May 14
LettuceApr 16–May 7
BroccoliApr 2–Apr 16
BeetsApr 2–May 14
PeasMar 19–Apr 2
CabbageApr 2–Apr 16
RadishesMar 26–May 7
Brussels sproutsApr 16–Apr 30
SpinachMar 19–Apr 9
CilantroApr 16–May 7
KaleApr 2–Apr 16
Collard greensApr 2–Apr 16
TurnipsApr 2–Apr 16
DillApr 30–May 14
CeleryMay 7–May 14
CauliflowerApr 16–Apr 30
LeeksApr 16–Apr 30
Swiss chardApr 16–May 14
ParsleyApr 16–May 7
Fall bulbs and garlic
JanFebMarAprMayJunJulAugSepOctNovDec
Tulip bulbsSep 25–Oct 30
GarlicSep 18–Oct 23
Daffodil bulbsSep 11–Oct 23
Perennials
JanFebMarAprMayJunJulAugSepOctNovDec
StrawberriesApr 2–Apr 16
AsparagusApr 2–Apr 16

Frost probabilities

ThresholdSpring, 90% chance laterSpring, 50%Spring, 10%Fall, 10% chance earlierFall, 50%Fall, 90%
Light frost, 32°FApr 16Apr 30May 12Sep 28Oct 9Oct 22
Hard freeze, 28°FApr 3Apr 18May 4Oct 5Oct 18Oct 31

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 Wfo Pueblo (USC00058992) sits 4.9 miles from the center of Pueblo at 4,653 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 Pueblo, CO?

The average last frost date in Pueblo is April 30, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after May 12.

When is the first frost in Pueblo?

The first frost in fall usually comes around October 9. One year in ten it arrives before September 28.

How long is the growing season in Pueblo?

About 162 days between the average last and first frost.

When should I plant tomatoes in Pueblo?

Plant tomato seedlings outside from May 7 to May 21. Start seeds indoors six to eight weeks earlier.

Nearby in Colorado

All 34 cities in Colorado