He did lower in 2024 alone according to https://dailynewsofopenwaterswimming.com/steve-stievenart-from-imshof-induction-to-immersion-and-beyond/:
- February: completed an Ice Kilometer in 1°C water on the Antarctica Peninsula at the IISA Antarctica Ice Swimming Adventure
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- December: completed an Ice Zero Mile in Ship Creek, Anchorage, Alaska in 0.8°C water in 36:31