This just happened to my nicest watermelon. Here in Mesa, AZ, it has been 110 to 115 for months, just dropping to 101 today. I over watered, and with the brutal sun heating the melon up, and my careless over-watering to compensate for the heat and single digit humidity, bingo, it split. We ate it tonight, yum, but I learned my lesson. Slow down and let them grow naturally, don't try to push them with over-watering.
Tom in Mesa, AZ
Tom in Mesa, AZ
