How to read the band →
Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Winter
Winter has been climbing in recent years. All-time it's been given to 27,633 U.S. babies, the 439th most common name by sound today, peaking at 2,037 in 2021, with 1,502 in 2025.
By sound, Winter also includes the spellings Wynter.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).