September 7 in San Mateo, through the years

Typical high: 29.7°. Hottest: 30.6° (2025). Coldest night: 24.1° (2021).

YEARHIGHLOWRAIN
2025 30.6° 26.1° 0.1 mm
2024 30.2° 25.6° 6.2 mm
2022 29.9° 25° 1.1 mm
2021 28.6° 24.1° 5.8 mm
2020 29.4° 24.6° 5.1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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