Average First Frost Date for Colorado

Seems like we were just talking about the last frost date in Colorado , and now we need to be concerned with when our first frost will be. Anyone who has lived in Colorado for any length of time, understands that a dip into freezing temperatures for a night or even two, doesn’t necessarily mean the end of your tender summer vegetable harvest. With proper protection you can easily extend your harvest for a few weeks.

What you need to know:

  1. Watch the forecast for overnight temperatures below 38 degrees Fahrenheit.

  2. Be prepared with something to cover your vegetable garden. Your local garden center will have a variety of options depending on what you are growing, the size of your size, and location.

  3. Uncover the garden during the day if the temperature gets above 38 degrees, and be prepared to cover again before dark.

  4. Keep in mind that the temperature underneath the cover, can be considerably warmer than the outside air temperatures.

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Interested in planning ahead? This Colorado Average First Frost Map (pictured above) is a great resource for the entire date of Colorado.

Protect those tender vegetables, you will be glad that you did.

Allison Gault