Using a food thermometer. Checking the temperature of your cooked meat, poultry, and seafood with a food thermometer is the only reliable way to make sure your food has reached a safe internal cooking temperature.
Planting Watermelons. The ideal date to plant watermelons varies according to the climate of the region. To produce the sugar necessary for sweet fruit, the melons need hot weather. Seedlings should not be transplanted until three to four weeks after the last average frost date in the spring. Starting seed indoors about six weeks before planting gives you a head start when the soil is warm enough.
Planting Times. In warmer climates, like Texas and the hotter areas of California, planting time for watermelons is December through early July, although April through July is more common. Harvest time ranges early-summer to mid-fall; some varieties may ripen in 90 days or less and are known as early varieties.