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Tennessee · NOAA station USC00400137

Frost dates for Ames Plantation, TN

At Ames Plantation, the median last spring frost (32°F) is Apr 1 and the median first fall frost is Nov 3, for a typical growing season of 217 days. For a 90% chance that the last frost has passed, wait until Apr 17. Nearby ZIP codes are in USDA hardiness zones 7b to 8a.

  • Apr 1Last spring frost (median)50% chance of 32°F after this date
  • Apr 17Safer planting date10% chance of 32°F after this date
  • Nov 3First fall frost (median)50% chance of 32°F by this date
  • 217 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.

Ames Plantation: last spring freeze by temperature
Temperature90% chance later50% chance later10% chance later
36°FMar 26Apr 12Apr 27
32°FMar 12Apr 1Apr 17
28°FFeb 25Mar 17Apr 5
24°FFeb 8Mar 4Mar 25

First fall frost dates

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

Ames Plantation: first fall freeze by temperature
Temperature10% chance by50% chance by90% chance by
36°FOct 12Oct 25Nov 6
32°FOct 21Nov 3Nov 19
28°FNov 1Nov 14Dec 3
24°FNov 7Nov 27Dec 23

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.

Ames Plantation: growing season by temperature
Temperature9 in 10 years at least5 in 10 years at least1 in 10 years at least
36°F176 days195 days216 days
32°F196 days217 days243 days
28°F216 days243 days271 days
24°F242 days270 days299 days

Chance of a freeze in any year

Ames Plantation: 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 Ames Plantation with 2023 USDA hardiness zones
ZIPHardiness zoneAvg. extreme lowDistance
380397b5 to 10°F7 km
380427b5 to 10°F8 km
380677b5 to 10°F16 km
380688a10 to 15°F20 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 USC00400137, at 35.1131, -89.2122, elevation 140 m (460 ft).
  • Data quality: Standard (24+ years of data), 27 years of freeze data.
  • Average days per year at or below 32°F: 74.
  • 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 Tennessee stations · How frost dates are calculated