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First and last freeze dates in St. Louis (Spirit of St. Louis Airport), MO

The first freeze of fall (a low of 32°F or colder) typically comes around Oct 22, and the last freeze of spring around Apr 13.

This fall so far (data through Oct 16, 2026): no 32°F freeze recorded yet at this station. Observed data, can lag a day or two.

Oct 22Median first fall freeze (≤32°F)

Apr 13Median last spring freeze (≤32°F)

190Median freeze-free days between

First and last freeze dates in St. Louis (Spirit of St. Louis Airport)

Threshold	Event	Median date	Typical range (10th–90th pct)	Earliest / latest	Years with one
32°F or colder (freeze)	First in fall	Oct 22	Oct 8 – Oct 31	Oct 5 (2004) / Nov 10 (2016)	100%
32°F or colder (freeze)	Last in spring	Apr 13	Mar 31 – Apr 23	–	100%
28°F or colder (hard freeze)	First in fall	Nov 1	Oct 20 – Nov 14	Oct 9 (2000) / Nov 26 (2024)	100%
28°F or colder (hard freeze)	Last in spring	Mar 27	Mar 10 – Apr 13	–	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 190 days.

Nearby weather stations

Source station: St Louis Spirit Of St Louis Ap (USW00003966), elevation 458 ft. Data: NOAA NCEI GHCN-Daily. Computed by First Snow Dates; how we calculate this. Historical averages only; for a forecast see weather.gov.

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