Sherman County, Oregon · Frost dates

Sherman County frost dates.

First-frost, last-frost, and growing-season length for Sherman County, Oregon. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: high · USDA zone: 8b

32°F — light freeze

Last spring frost

10%
05-31
20%
05-24
50%
05-12
80%
05-01
90%
04-27

First fall frost

10%
09-16
20%
09-24
50%
10-04
80%
10-13
90%
10-18

28°F — killing freeze

Last spring freeze

10%
05-11
20%
05-05
50%
04-26
80%
04-14
90%
04-08

First fall freeze

10%
10-01
20%
10-06
50%
10-16
80%
10-27
90%
11-02

Growing season length (days, 28°F threshold)

Short year
143
Median
173
Long year
208

Source NOAA station

MORO, OR US

6.2 mi · 30 yrs of record (19912020) · 1870 ft elev.

Data from MORO, OR US, 6.2 miles away with 30-year NOAA record (1991-2020).

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