Frost Dates: First and last frost dates for Bagdad, AZ
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 May 28, you have a 90% chance of being frost-free — this is your "safe date" for planting tender crops
- Around April 22, there's a 50/50 chance of frost — check weather forecasts carefully if planting now
- Before March 30, 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.
| Temperature | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| Last 16° | Feb 12 | Jan 25 | Jan 1 | -- | -- | -- | -- | -- | -- |
| Last 20° | Mar 9 | Feb 17 | Feb 1 | Jan 16 | Dec 26 | -- | -- | -- | -- |
| Last 24° | Mar 29 | Mar 10 | Feb 24 | Feb 12 | Jan 31 | Jan 18 | Jan 1 | Dec 2 | -- |
| Last 28° | Apr 23 | Apr 9 | Mar 29 | Mar 20 | Mar 12 | Mar 3 | Feb 22 | Feb 11 | Jan 28 |
| Last 32° | May 18 | May 5 | Apr 25 | Apr 17 | Apr 9 | Apr 1 | Mar 24 | Mar 15 | Mar 1 |
| Last 36° | May 28 | May 15 | May 7 | Apr 29 | Apr 22 | Apr 15 | Apr 8 | Mar 30 | Mar 18 |
ℹ️ How to read these charts for the fall
As summer ends in Bagdad, AZ, 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:
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.
| Temperature | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| First 16° | Dec 12 | Jan 2 | -- | -- | -- | -- | -- | -- | -- |
| First 20° | Nov 19 | Dec 3 | Dec 14 | Dec 25 | Jan 10 | -- | -- | -- | -- |
| First 24° | Nov 11 | Nov 21 | Nov 29 | Dec 6 | Dec 13 | Dec 21 | Dec 31 | -- | -- |
| First 28° | Oct 25 | Nov 5 | Nov 13 | Nov 20 | Nov 27 | Dec 3 | Dec 10 | Dec 18 | Dec 30 |
| First 32° | Oct 9 | Oct 20 | Oct 27 | Nov 3 | Nov 9 | Nov 15 | Nov 22 | Nov 29 | Dec 10 |
| First 36° | Oct 4 | Oct 13 | Oct 19 | Oct 25 | Oct 30 | Nov 5 | Nov 10 | Nov 17 | Nov 26 |
📍 Frost Dates for other nearby locations
- Walnut Creek, AZ 34.0 mi
- Wikieup, AZ 36.3 mi
- Aguila, AZ 41.8 mi
- Wickenburg, AZ 46.9 mi
- Prescott, AZ 47.3 mi
- Chino Valley, AZ 47.9 mi
- Seligman, AZ 56.9 mi
- Castle Hot Springs, AZ 65.0 mi
- Cordes, AZ 67.8 mi
- Jerome, AZ 70.9 mi
Or enter a new zipcode:
Data is provided by the NOAA National Centers for Environmental Information.