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Oregon · NOAA station USC00351055

Frost dates for Brookings 2 SE, OR

At Brookings 2 SE, the median last spring frost (32°F) is Jan 31 and the median first fall frost is Dec 27, for a typical growing season of 334 days. For a 90% chance that the last frost has passed, wait until Mar 20. Nearby ZIP codes are in USDA hardiness zone 9b.

  • Jan 31Last spring frost (median)50% chance of 32°F after this date
  • Mar 20Safer planting date10% chance of 32°F after this date
  • Dec 27First fall frost (median)50% chance of 32°F by this date
  • 334 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.

Brookings 2 SE: last spring freeze by temperature
Temperature90% chance later50% chance later10% chance later
36°FFeb 14Mar 30Apr 29
32°FDec 14Jan 31Mar 20
28°FDec 5Jan 1Feb 18

First fall frost dates

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

Brookings 2 SE: first fall freeze by temperature
Temperature10% chance by50% chance by90% chance by
36°FNov 6Nov 29Dec 28
32°FNov 24Dec 27Feb 19
28°FDec 1Dec 29Feb 12

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.

Brookings 2 SE: growing season by temperature
Temperature9 in 10 years at least5 in 10 years at least1 in 10 years at least
36°F208 days246 days291 days
32°F272 days334 days365 days
28°F345 days365 days365 days
24°F365 days365 days365 days

Chance of a freeze in any year

Brookings 2 SE: probability of at least one day at or below each temperature
TemperatureChance per year
36°F100%
32°F80%
28°F23%
24°F3%

ZIP codes whose closest station is this one

ZIP codes near Brookings 2 SE with 2023 USDA hardiness zones
ZIPHardiness zoneAvg. extreme lowDistance
955679b25 to 30°F15 km
974159b25 to 30°F15 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 USC00351055, at 42.0300, -124.2453, elevation 15 m (50 ft).
  • Data quality: Representative (10+ years), 11 years of freeze data.
  • Average days per year at or below 32°F: 2.
  • 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 Oregon stations · How frost dates are calculated