Based on 2019-2023 annual averages:
July (15%) was the peak month for grill fires, followed by June (14%), May (13%) and August (12%).
The grill had not been cleaned in roughly one-fifth (20%) of the fires.
More than one-quarter of grill structure fires started on an exterior balcony or open porch. Eight percent began when an outside wall caught fire; 3% began with some type of structural member or framing.
Gas grills were involved in an average of 9,287 home fires per year, including 4,682 structure fires and 4,605 outdoor fires annually. Leaks or breaks were primarily a problem with gas grills. Six percent of gas grill structure fires and 13% of outside gas grill fires were caused by leaks or breaks.
According to data from the Consumer Product Safety Commission, in 2020-2024, an average of 21,682 patients per year went to emergency rooms because of injuries involving grills.

Source: NFPA Research.