While the earth remaineth, seedtime and harvest, and cold and heat, and summer and winter, and day and night shall not cease. ( Genesis 8:22 )
God has promised that the seasonal and daily cycles he established will continue as long as the earth, or at least until the new earth spoken of in the Book of Revelation. These cycles of hot and cold and rainy and dry seasons are critical for planting and harvesting food. God has made them reliable so as to help human beings to be able to feed themselves.
O Lord, you showed Your goodness to the nations by providing them rain, harvest, and good things in abundance, even when they did not regard You. (Acts 17) Though men were blessed, they were not thankful. But we thank you, Lord, for all of Your good gifts to us. Your provisions are too numerous for us to count!