Frost dates 2026–2027

Frost dates for Madras, Oregon

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Madras 2 N, 0.7 mi away (close match).

Last spring frostMay 19
First fall frostOct 4
136 frost-free days
Last spring frostMay 191 year in 10 after Jun 7
First fall frostOct 41 year in 10 by Sep 20
Growing season136 daysbetween median 32°F dates
Hardiness zoneZone 7a0 to 5°F average extreme low

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Will it freeze in Madras in the next 7 nights?

No overnight lows at or below 32°F are forecast in Madras during the next 7 nights in the available NWS frost forecast.

Tonight: forecast low 33°F. Frost possible.

NWS forecast period: Thu, Nov 5, 6:00 PM PST to Fri, Nov 6, 6:00 AM PST.

3 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.

Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.

Frost and freeze probabilities

Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.

These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.

Average first hard freeze in Madras

The median first fall hard-freeze date (28°F) is October 17, from NOAA’s 1991–2020 Climate Normals at Madras 2 N. This is the 50% probability date, not a forecast for this year.

TemperatureLast spring date
90% · 50% · 10% chance of a later freeze
First fall date
10% · 50% · 90% chance of an earlier freeze
Season
36°F frost possible May 21 · Jun 10 · Jun 28 Sep 2 · Sep 19 · Oct 4 100 days
32°F freeze May 2 · May 19 · Jun 7 Sep 20 · Oct 4 · Oct 18 136 days
28°F hard freeze Apr 20 · May 2 · May 20 Oct 1 · Oct 17 · Nov 1 167 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00355142. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Madras 2 N

Average low temperature by month

Months with lows near or below freezing carry frost risk

Where these frost dates come from

The frost dates for Madras, OR come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Madras 2 N (station USC00355142, elevation 2,443 ft), 0.7 mi from Madras. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.

Frost dates near Madras

CityDistanceLast spring frostFirst fall frost
Redmond, OR 28 mi Jun 9 Sep 14
Prineville, OR 29 mi Jun 1 Sep 22
Bend, OR 43 mi Jun 6 Sep 20
The Dalles, OR 65 mi Apr 11 Oct 26
Estacada, OR 72 mi Mar 27 Nov 14
Sandy, OR 74 mi Mar 27 Nov 18
Hood River, OR 75 mi Apr 20 Oct 13
Molalla, OR 77 mi Mar 16 Nov 19
Sweet Home, OR 78 mi Apr 12 Oct 28
Stayton, OR 81 mi Mar 29 Nov 6

Frequently asked questions

When is the last frost in Madras?

On average, the last spring frost (32°F) in Madras is around May 19. In about 1 year in 10 it comes after June 7, and in 9 years in 10 it comes after May 2.

When is the first frost in Madras?

The first fall frost (32°F) usually arrives around October 4. There’s a 10% chance of a freeze by September 20 and a 90% chance by October 18.

Can it frost in Madras after the last frost date?

Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after June 10.

What growing zone is Madras?

Madras is in USDA Plant Hardiness Zone 7a (average annual extreme minimum temperature 0 to 5°F), based on the 2023 USDA map for ZIP code 97741. See growing zones in Oregon.

More: all Oregon frost dates · Oregon growing zones · frost vs. freeze