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Virginia · NOAA station USC00446161

Frost dates for N, VA

At N, the median last spring frost (32°F) is Apr 1 and the median first fall frost is Nov 10, for a typical growing season of 223 days. For a 90% chance that the last frost has passed, wait until Apr 15. Nearby ZIP codes are in USDA hardiness zone 8a.

  • Apr 1Last spring frost (median)50% chance of 32°F after this date
  • Apr 15Safer planting date10% chance of 32°F after this date
  • Nov 10First fall frost (median)50% chance of 32°F by this date
  • 223 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.

N: last spring freeze by temperature
Temperature90% chance later50% chance later10% chance later
36°FMar 31Apr 15May 3
32°FMar 20Apr 1Apr 15
28°FMar 5Mar 21Apr 3
24°FFeb 17Mar 7Mar 25

First fall frost dates

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

N: first fall freeze by temperature
Temperature10% chance by50% chance by90% chance by
36°FOct 18Nov 1Nov 12
32°FOct 31Nov 10Nov 26
28°FNov 7Nov 23Dec 10
24°FNov 18Dec 6Dec 31

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.

N: growing season by temperature
Temperature9 in 10 years at least5 in 10 years at least1 in 10 years at least
36°F177 days199 days217 days
32°F205 days223 days242 days
28°F226 days247 days268 days
24°F251 days274 days300 days

Chance of a freeze in any year

N: 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 N with 2023 USDA hardiness zones
ZIPHardiness zoneAvg. extreme lowDistance
231288a10 to 15°F2 km
230508a10 to 15°F6 km
230568a10 to 15°F7 km
230218a10 to 15°F7 km
230258a10 to 15°F7 km
230618a10 to 15°F9 km
230358a10 to 15°F9 km
231098a10 to 15°F10 km
230688a10 to 15°F11 km
230718a10 to 15°F12 km
230768a10 to 15°F13 km
230708a10 to 15°F14 km
231198a10 to 15°F15 km
230668a10 to 15°F15 km
230458a10 to 15°F15 km
231638a10 to 15°F15 km
231768a10 to 15°F16 km
231388a10 to 15°F16 km
230728a10 to 15°F16 km
230438a10 to 15°F17 km
231308a10 to 15°F17 km
231698a10 to 15°F19 km
230928a10 to 15°F20 km
225788a10 to 15°F24 km
224808a10 to 15°F26 km
225768a10 to 15°F28 km
224828a10 to 15°F35 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 USC00446161, at 37.4339, -76.4414, elevation 1 m (4 ft).
  • Data quality: Representative (10+ years), 15 years of freeze data.
  • Average days per year at or below 32°F: 77.
  • 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 Virginia stations · How frost dates are calculated