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First and last freeze dates in Dickinson, ND

The first freeze of fall (a low of 32°F or colder) typically comes around Sep 25, and the last freeze of spring around May 19.

This fall so far (data through Oct 16, 2026): first freeze (32°F or colder) Oct 4 at this station. Observed data, can lag a day or two.

Sep 25Median first fall freeze (≤32°F)

May 19Median last spring freeze (≤32°F)

130Median freeze-free days between

First and last freeze dates in Dickinson

Threshold	Event	Median date	Typical range (10th–90th pct)	Earliest / latest	Years with one
32°F or colder (freeze)	First in fall	Sep 25	Sep 14 – Oct 6	Sep 8 (2020) / Oct 15 (2021)	100%
32°F or colder (freeze)	Last in spring	May 19	May 8 – Jun 3	–	100%
28°F or colder (hard freeze)	First in fall	Oct 6	Sep 22 – Oct 16	Sep 14 (2007) / Oct 20 (2021)	100%
28°F or colder (hard freeze)	Last in spring	May 10	Apr 23 – May 17	–	100%

Based on the station’s daily minimum temperature, 1995–2024. “Freeze” here means a daily low at or below the threshold, which is not the same as visible frost. Your yard can differ by several degrees and days from an airport weather station, so use these as planning odds, not guarantees.

The median stretch between the last spring freeze and the first fall freeze (the freeze-free season) was about 130 days.

Nearby weather stations

Source station: Dickinson Theodore Roosevelt R (USW00024012), elevation 2,583 ft. Data: NOAA NCEI GHCN-Daily. Computed by First Snow Dates; how we calculate this. Historical averages only; for a forecast see weather.gov.

Planning for winter? Heat pump vs gas furnace, propane and oil: heating cost in North Dakota (on our sister site PlugVsPump, from EIA prices).