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Mississippi · NOAA station USC00229079

Frost dates for University, MS

At University, the median last spring frost (32°F) is Apr 3 and the median first fall frost is Oct 31, for a typical growing season of 210 days. For a 90% chance that the last frost has passed, wait until Apr 21. Nearby ZIP codes are in USDA hardiness zones 7b to 8a.

  • Apr 3Last spring frost (median)50% chance of 32°F after this date
  • Apr 21Safer planting date10% chance of 32°F after this date
  • Oct 31First fall frost (median)50% chance of 32°F by this date
  • 210 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.

University: last spring freeze by temperature
Temperature90% chance later50% chance later10% chance later
36°FMar 30Apr 14Apr 30
32°FMar 13Apr 3Apr 21
28°FFeb 27Mar 21Apr 10
24°FFeb 10Mar 5Mar 29

First fall frost dates

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

University: first fall freeze by temperature
Temperature10% chance by50% chance by90% chance by
36°FOct 9Oct 22Nov 3
32°FOct 18Oct 31Nov 17
28°FOct 27Nov 12Dec 1
24°FNov 6Nov 25Dec 18

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.

University: growing season by temperature
Temperature9 in 10 years at least5 in 10 years at least1 in 10 years at least
36°F171 days190 days211 days
32°F189 days210 days234 days
28°F210 days235 days263 days
24°F235 days264 days298 days

Chance of a freeze in any year

University: 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 University with 2023 USDA hardiness zones
ZIPHardiness zoneAvg. extreme lowDistance
386777b5 to 10°F1 km
386558a10 to 15°F6 km
386738a10 to 15°F13 km
386018a10 to 15°F14 km
386858a10 to 15°F25 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 USC00229079, at 34.3725, -89.5308, elevation 124 m (408 ft).
  • Data quality: Standard (24+ years of data), 28 years of freeze data.
  • Average days per year at or below 32°F: 68.
  • 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 Mississippi stations · How frost dates are calculated