Weld County, Colorado · Frost dates

Weld County frost dates.

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

Data confidence: high · USDA zone: 5a

32°F — light freeze

Last spring frost

10%
05-25
20%
05-21
50%
05-12
80%
05-05
90%
05-02

First fall frost

10%
09-15
20%
09-20
50%
09-28
80%
10-04
90%
10-07

28°F — killing freeze

Last spring freeze

10%
05-16
20%
05-11
50%
05-03
80%
04-26
90%
04-22

First fall freeze

10%
09-23
20%
09-27
50%
10-05
80%
10-13
90%
10-17

Growing season length (days, 28°F threshold)

Short year
130
Median
155
Long year
178

Source NOAA station

BRIGGSDALE, CO US

6.1 mi · 30 yrs of record (19912020) · 4862 ft elev.

Data from BRIGGSDALE, CO US, 6.1 miles away with 30-year NOAA record (1991-2020).

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