Summer days (25 °C or warmer) in De Bilt (KNMI measurements): an average of 29 days a year in 1996–2025, 87% more than in 1901–1930

Summer days (25 °C or warmer) in De Bilt (KNMI measurements), 1901 – 2025, in days a year. The highest point was 1947 (55).