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Warmest Seps on record (since 1880)

Warmest+1.48°C2023
Coldest−0.58°C1912
Latest+1.25°C2025 · #2
1991–2020 average+0.58°C

Trend

Sep+1.48-0.58+1.25188019532025

Top 20 warmest

Average by decade

10 coldest

RankYearAnomaly
1461912−0.58°C
1451904−0.56°C
1441903−0.49°C
1431911−0.41°C
1421909−0.39°C
1411910−0.39°C
1401890−0.37°C
1391908−0.36°C
1381916−0.36°C
1371913−0.35°C

Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.