April 15, 2025 Tuesday Weather Update
Atlantic hurricane season has cooler water than last year
April 2025 was the 16th-warmest April in the 132-year national record (1895–2026), at 53.6°F against a 1991–2020 normal of 51.8°F (+1.7°F).
April 2025 was the 31st-wettest April in the 132-year national record (1895–2026), at 2.9in against a 1991–2020 normal of 2.7in (+0.2in).
NOAA/NCEI Climate at a Glance, contiguous United States. This is the observed record for the month, not a score of anything said in this piece — the forecast ledger begins 2026-08-17 and cannot reach earlier posts.
Quick look at the change in sea-surface temperatures across the Earth as we head into the middle of April and look ahead to the Atlantic Hurricane Season.
2025 minus 2024 shows a LOT of blue meaning significantly cooler across the tropics in the Indian, Pacific, and Atlantic Oceans. The central Pacific is cooler because of the transition to a weak La Niña while the Atlantic on both sides of the equator is dramatically cooler. I don’t entirely understand the mechanisms controlling the deep tropics Atlantic SST other than winds to mix up cooler water than below but there is also a “Niño” in the Atlantic that seems to be acting up.
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- 576 · laid 2025-04-15T13:50:52.801000Z
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