When is the last frost in Medford, OR?

The average (50% probability) last spring frost in Medford is April 8, based on NOAA 1991–2020 normals. A 1-in-10 risk remains until April 30.

When is the first frost in Medford?

The average first fall frost in Medford is October 29, with a growing season of about 204 days.

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Medford, Oregon frost dates

Average last spring frost: April 8. Average first fall frost: October 29. That gives a growing season of about 204 days. For frost-tender plants, a safer planting date is April 30, after which a freeze happens in only 1 year in 10.

Last frost (50%)

Apr 8

1-in-10 risk after Apr 30

First frost (50%)

Oct 29

1-in-10 risk before Oct 14

Growing season

204 days

median frost-free days

Hard freeze (28°F)

Mar 10

median last 28°F in spring

Frost risk by date

Chance of frost	Spring: frost after	Fall: frost before
90%	March 17	November 16
70%	March 30	November 4
50%	April 8	October 29
30%	April 18	October 23
10%	April 30	October 14

Read the spring column like this: there is a 10% chance of a 32°F freeze after April 30. These are NOAA probabilities for the Medford Rogue Vly Airport weather station (USW00024225, elevation 395 m), 1991–2020.

Medford vegetable planting calendar

Dates count from the 50% last-frost date (April 8). For tomatoes, peppers and other frost-tender crops, waiting until the 10% date (Apr 30) is the cautious choice.

Crop	Start seeds indoors	Plant out
Beans	Mar 18	Apr 15 (usually sown directly in the garden)
Broccoli	Jan 28	Mar 11
Brussels sprouts	Jan 28	Mar 11
Cabbage	Jan 21	Mar 4
Cauliflower	Feb 11	Mar 25
Sweet corn	Mar 11	Apr 8 (usually sown directly in the garden)
Cucumbers	Mar 25	Apr 15
Kale	Jan 21	Mar 4
Leeks	Dec 24	Mar 4
Lettuce	Feb 18	Mar 25
Melons	Apr 1	Apr 22
Onions	Dec 17	Feb 25 (from seed; sets and transplants go out at the same time)
Peas	Feb 11	Mar 11 (usually sown directly in the garden)
Peppers	Feb 25	Apr 22
Squash	Apr 1	Apr 22
Tomatoes	Feb 11	Apr 8

Offsets from Oregon State University Extension's seed-starting table. "Plant out" means transplant, or sow directly for crops usually grown from seed.

Fall frost and season extension

The first fall freeze usually arrives around October 29. There's a 1-in-10 chance it comes before October 14. Harvest tender crops such as basil, tomatoes, peppers and squash before then, or cover them on cold nights. Cool-season crops like kale, cabbage and Brussels sprouts handle light frost, and often taste sweeter after it. A hard freeze (28°F) typically comes around November 13.

Nearby cities

City	Last frost (50%)	First frost (50%)	Distance
Eugene, OR	Apr 11	Oct 23	~196 km
Portland, OR	Mar 13	Nov 19	~357 km
Reno, NV	Apr 20	Oct 23	~410 km
Sacramento, CA	Feb 22	Nov 24	~422 km
Yakima, WA	May 8	Oct 4	~502 km
San Francisco, CA	Dec 29	Dec 26	~530 km

More: all Oregon frost dates