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Utah · NOAA station USC00423980

Frost dates for Hite Ranger Station, UT

At Hite Ranger Station, the median last spring frost (32°F) is Mar 9 and the median first fall frost is Nov 20, for a typical growing season of 253 days. For a 90% chance that the last frost has passed, wait until Apr 5. Nearby ZIP codes are in USDA hardiness zones 6b to 8a.

  • Mar 9Last spring frost (median)50% chance of 32°F after this date
  • Apr 5Safer planting date10% chance of 32°F after this date
  • Nov 20First fall frost (median)50% chance of 32°F by this date
  • 253 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.

Hite Ranger Station: last spring freeze by temperature
Temperature90% chance later50% chance later10% chance later
36°FMar 5Mar 27Apr 28
32°FFeb 16Mar 9Apr 5
28°FJan 24Feb 23Mar 20
24°FDec 31Feb 2Mar 4

First fall frost dates

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

Hite Ranger Station: first fall freeze by temperature
Temperature10% chance by50% chance by90% chance by
36°FOct 26Nov 10Nov 22
32°FNov 4Nov 20Dec 4
28°FNov 16Dec 1Dec 17
24°FNov 27Dec 13Jan 4

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.

Hite Ranger Station: growing season by temperature
Temperature9 in 10 years at least5 in 10 years at least1 in 10 years at least
36°F193 days226 days252 days
32°F224 days253 days278 days
28°F251 days281 days310 days
24°F279 days315 days349 days

Chance of a freeze in any year

Hite Ranger Station: probability of at least one day at or below each temperature
TemperatureChance per year
36°F100%
32°F100%
28°F100%
24°F97%

Closest ZIP codes (each is closer to another station)

ZIP codes near Hite Ranger Station with 2023 USDA hardiness zones
ZIPHardiness zoneAvg. extreme lowDistance
845338a10 to 15°F54 km
847347a0 to 5°F57 km
847757a0 to 5°F73 km
845368a10 to 15°F84 km
847167a0 to 5°F93 km
845117a0 to 5°F94 km
845307a0 to 5°F95 km
845356b-5 to 0°F96 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 USC00423980, at 37.8747, -110.3881, elevation 1174 m (3,850 ft).
  • Data quality: Representative (10+ years), 16 years of freeze data.
  • Average days per year at or below 32°F: 66.
  • 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 Utah stations · How frost dates are calculated