Last Frost Date 2025 By Zip Code Texas. 48 rows stratford is the coldest city in texas with an annual average temperature of 55.0 degrees, while mc allen in the valley is the hottest with an annual average temperature of 74.1. A frost date is the average date of the last light freeze in spring or the first light freeze in fall.

(last updated 01/23/2025) the dormant buds of many plants require a period of cold weather to grow, flower, and develop properly, but requirements vary widely by species. Use our 2025 frost dates calculator to find the average dates of the last light freeze of spring and the first light freeze of fall for locations across the u.s.