According to the USDA Somerton is in USDA Zone 10a. Here is some general info for USDA Zone 10a to help you get started.
| Average Date of Last Frost (spring) | January 31 |
| Average Date of First Frost (fall) | December 15 |
| Lowest Expected Low | 30°F |
| Highest Expected Low | 35°F |
This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.
You can view the USDA Zone map for Arizona here:
Below is a list of planting guides for Somerton, AZ. These guides are based on data from Zone 10a.
Vegetables
Herbs
Flowers
