Frost dates · Missouri
Missouri frost dates, county by county.
Last spring frost and first fall frost probability data for all 115 counties in Missouri, computed from the NOAA 1991–2020 Climate Normals. Every county page surfaces the full probability table at three temperature thresholds plus crop-specific planting guidance.
Variation across Missouri
33 days separate the earliest and latest counties.
The median last spring frost in Pemiscot County is March 12 — 33 days earlier than Crawford County at April 14. Statewide averages aren't useful planting tools; pick your county below for the data that actually applies to your fields.
By geography
Missouri counties on the map.
Each polygon is a county. Click for full frost-date detail. Color shows last-spring-frost timing — sage = earliest, amber = latest.
MapList
Last spring frostEarliestMedianLatest
115 counties · click any county for full frost data