Frost Dates: First and last frost dates for Kosciusko, MS

ℹ️ How to read these charts for the spring

As spring unfolds, the risk of frost gradually decreases each day until your tender plants are finally safe. The probabilities shown in the chart help you make smart decisions about when to plant.

While frost typically forms at 32°F, tender plants can be damaged even when temperatures are slightly higher. Air temperatures are often measured several feet above the ground, but temperatures at plant level can be several degrees colder. Protected areas like porches help by blocking radiational cooling. Given these variables, we consider 36°F the "caution zone" for frost-sensitive plants.

Key dates for your spring planting:

  • By April 23, you have a 90% chance of being frost-free — this is your "safe date" for planting tender crops
  • Around April 10, there's a 50/50 chance of frost — check weather forecasts carefully if planting now
  • Before April 1, there's still an 80% risk of frost — too early for tomatoes and other tender plants unless you're prepared to protect them

If the 10-day forecast shows no temperatures below 40°F, you might safely plant earlier than the above dates suggest. Many gardeners watch for this weather window to get a head start on the growing season.

In the Spring
Temperature 10% 20% 30% 40% 50% 60% 70% 80% 90%
Last 16° Feb 27 Feb 17 Feb 10 Feb 4 Jan 28 Jan 21 Jan 11 -- --
Last 20° Mar 13 Mar 3 Feb 24 Feb 18 Feb 13 Feb 7 Feb 1 Jan 25 Jan 16
Last 24° Mar 19 Mar 12 Mar 6 Mar 2 Feb 25 Feb 21 Feb 16 Feb 10 Feb 3
Last 28° Apr 2 Mar 26 Mar 20 Mar 16 Mar 11 Mar 7 Mar 2 Feb 25 Feb 17
Last 32° Apr 15 Apr 9 Apr 4 Apr 1 Mar 28 Mar 24 Mar 20 Mar 16 Mar 10
Last 36° Apr 23 Apr 18 Apr 15 Apr 12 Apr 10 Apr 7 Apr 5 Apr 1 Mar 28

ℹ️ How to read these charts for the fall

As summer ends in Kosciusko, MS, nighttime temperatures begin to drop, and your risk of frost increases with each passing day. Knowing when to expect frost helps you harvest sensitive crops and extend your growing season with protection methods.

The chart below shows the probability of experiencing specific temperatures on various dates. Here's what this means for your garden:

1
Early warning: Around October 24, there's a 20% chance of 32°F — start monitoring forecasts and have plant covers ready
2
Decision time: By November 3, there's a 50% chance of frost — harvest tomatoes, peppers, and other tender crops or prepare protection
3
Last chance: By November 13, there's an 80% chance of seeing 32°F — most tender plants will be damaged without protection
4
Another perspective: You have only a 1 in 5 chance of making it past November 13 without a freezing night

These probabilities help you time your end-of-season harvests and know when to apply protective measures like row covers, cloches, or cold frames to extend your harvest.

In the Fall
Temperature 10% 20% 30% 40% 50% 60% 70% 80% 90%
First 16° Dec 4 Dec 17 Dec 26 Jan 3 Jan 12 Jan 21 Feb 3 -- --
First 20° Nov 20 Dec 2 Dec 11 Dec 18 Dec 25 Jan 1 Jan 8 Jan 17 Jan 29
First 24° Nov 8 Nov 17 Nov 24 Nov 30 Dec 5 Dec 10 Dec 16 Dec 23 Jan 1
First 28° Nov 3 Nov 8 Nov 12 Nov 15 Nov 18 Nov 21 Nov 25 Nov 29 Dec 4
First 32° Oct 19 Oct 24 Oct 28 Oct 31 Nov 3 Nov 6 Nov 9 Nov 13 Nov 18
First 36° Oct 3 Oct 8 Oct 12 Oct 15 Oct 18 Oct 20 Oct 23 Oct 27 Nov 1

📍 Frost Dates for other nearby locations

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Data is provided by the NOAA National Centers for Environmental Information.