Watering your Christmas Tree Reduces Fire Hazard Every year in the U.S., fire departments respond to an estimated 210 home fires involving Christmas trees[1]. Even though Christmas tree fires are infrequent, when they occur, they can be dangerous and costly. These fires cause an annual average of 6 civilian deaths, 16 civilian injuries, and $16.2 million in property damage[1]. The good news is that by keeping your Christmas tree watered, you can enjoy the holidays with a beautiful and safer Christmas tree.