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Colorado · NOAA station USC00059278

Frost dates for Yellow Jacket 4ne, CO

At Yellow Jacket 4ne, the median last spring frost (32°F) is May 15 and the median first fall frost is Oct 8, for a typical growing season of 147 days. For a 90% chance that the last frost has passed, wait until May 31. Nearby ZIP codes are in USDA hardiness zone 6b.

  • May 15Last spring frost (median)50% chance of 32°F after this date
  • May 31Safer planting date10% chance of 32°F after this date
  • Oct 8First fall frost (median)50% chance of 32°F by this date
  • 147 daysGrowing season (median)between 32°F freezes

Planting date calculator

Pick how much frost risk you accept and how many weeks before or after the last frost your seed packet says to plant.

From your seed packet, e.g. “start 6 weeks before last frost”.

–Last spring frost
–First fall frost
–Your planting date
–Hardiness zone

Last spring frost dates

The chance that the temperature drops to the threshold after each date.

Yellow Jacket 4ne: last spring freeze by temperature
Temperature90% chance later50% chance later10% chance later
36°FMay 13May 24Jun 6
32°FApr 30May 15May 31
28°FApr 15May 2May 19
24°FMar 29Apr 17May 4

First fall frost dates

The chance that the temperature has dropped to the threshold by each date.

Yellow Jacket 4ne: first fall freeze by temperature
Temperature10% chance by50% chance by90% chance by
36°FSep 17Oct 1Oct 13
32°FSep 26Oct 8Oct 22
28°FOct 4Oct 19Nov 3
24°FOct 13Oct 29Nov 13

Growing season length

Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.

Yellow Jacket 4ne: growing season by temperature
Temperature9 in 10 years at least5 in 10 years at least1 in 10 years at least
36°F112 days130 days146 days
32°F127 days147 days167 days
28°F146 days168 days191 days
24°F169 days192 days221 days

Chance of a freeze in any year

Yellow Jacket 4ne: probability of at least one day at or below each temperature
TemperatureChance per year
36°F100%
32°F100%
28°F100%
24°F100%

ZIP codes whose closest station is this one

ZIP codes near Yellow Jacket 4ne with 2023 USDA hardiness zones
ZIPHardiness zoneAvg. extreme lowDistance
813276b-5 to 0°F5 km

Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.

About this station

  • NOAA station ID USC00059278, at 37.5594, -108.6636, elevation 2161 m (7,090 ft).
  • Data quality: Representative (10+ years), 12 years of freeze data.
  • Average days per year at or below 32°F: 160.
  • Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.

Nearby weather stations

Sources

Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.

All Colorado stations · How frost dates are calculated