Frost Dates: First and last frost dates for Paradise Valley, NV

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 July 24, you have a 90% chance of being frost-free — this is your "safe date" for planting tender crops
  • Around July 5, there's a 50/50 chance of frost — check weather forecasts carefully if planting now
  • Before June 23, 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° May 1 Apr 18 Apr 10 Apr 2 Mar 26 Mar 19 Mar 12 Mar 3 Feb 19
Last 20° May 17 May 7 Apr 30 Apr 24 Apr 18 Apr 12 Apr 6 Mar 29 Mar 19
Last 24° May 26 May 19 May 14 May 9 May 5 May 1 Apr 26 Apr 21 Apr 13
Last 28° Jun 15 Jun 8 Jun 3 May 30 May 26 May 22 May 18 May 13 May 6
Last 32° Jul 3 Jun 27 Jun 23 Jun 19 Jun 16 Jun 12 Jun 9 Jun 5 May 30
Last 36° Jul 24 Jul 18 Jul 13 Jul 9 Jul 5 Jul 2 Jun 28 Jun 23 Jun 17

ℹ️ How to read these charts for the fall

As summer ends in Paradise Valley, NV, 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 August 29, there's a 20% chance of 32°F — start monitoring forecasts and have plant covers ready
2
Decision time: By September 9, there's a 50% chance of frost — harvest tomatoes, peppers, and other tender crops or prepare protection
3
Last chance: By September 19, 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 September 19 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° Oct 7 Oct 15 Oct 20 Oct 25 Oct 29 Nov 3 Nov 8 Nov 13 Nov 21
First 20° Sep 23 Sep 30 Oct 5 Oct 9 Oct 13 Oct 17 Oct 21 Oct 26 Nov 1
First 24° Sep 17 Sep 22 Sep 26 Sep 29 Oct 2 Oct 5 Oct 8 Oct 12 Oct 17
First 28° Sep 1 Sep 7 Sep 11 Sep 15 Sep 19 Sep 22 Sep 26 Sep 30 Oct 7
First 32° Aug 24 Aug 29 Sep 2 Sep 6 Sep 9 Sep 12 Sep 15 Sep 19 Sep 25
First 36° Aug 10 Aug 16 Aug 20 Aug 24 Aug 27 Aug 30 Sep 3 Sep 7 Sep 13

📍 Frost Dates for other nearby locations

Or enter a new zipcode:

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