Basel September 18 Weather Records

Daily averages and all-time records for weather in Basel, Switzerland for the date of September 18.
September 18 All-Time Records
1901–2024
Highest temperature 33.1 °C 1947
Lowest temperature 2.4 °C 1971
Lowest daily high 11.0 °C 1994
Highest daily low 17.3 °C 1918
Most precipitation 2.47 cm 1932
September 18 Average Weather
1991–2020 1
Average high 20.4 °C
Average low 10.8 °C
Chance precipitation 40.6%
Basel September 18 Weather by Year
Year High (°C) Low (°C) Precip. (cm)
2023 22.4 16.9 0.50
2022 16.9 6.6 0.00
2021 23.2 9.3 0.00
2020 25.5 13.9 0.00
2019 20.0 7.5 0.00
2018 29.2 14.9 0.92
2017 14.8 8.9 0.01
2016 16.2 12.7 0.30
2015 17.9 11.2 0.07
2014 24.3 16.9 0.24
2013 19.5 11.5 0.16
2012 23.5 12.2 0.83
2011 16.1 8.0 0.70
2010 17.4 6.2 0.00
2009 20.6 15.4 0.00
2008 13.7 6.6 0.04
2007 15.8 10.4 0.12
2006 18.2 14.3 0.90
2005 13.9 5.3 0.00
2004 23.6 9.7 0.00
2003 26.8 10.7 0.00
2002 24.0 9.2 0.00
2001 15.4 3.8 0.00
2000 21.6 10.0 0.00
1999 19.8 12.1 0.00
1998 18.2 7.7 0.00
1997 24.5 10.9 0.00
1996 14.8 5.2 0.03
1995 21.0 9.8 0.00
1994 11.0 4.8 0.10
1993 20.3 8.8 0.00
1992 23.5 11.1 0.10
1991 24.7 12.1 0.00
1990 19.9 10.4 0.00
1989 28.8 14.6 0.00
1988 15.7 8.0 0.00
1987 29.8 16.3 0.00
1986 15.5 9.4 0.14
1985 25.1 10.7 0.00
1984 13.8 12.2 1.62
1983 19.0 9.2 0.00
1982 25.6 15.9 0.00
1981 24.1 11.1 0.61
1980 22.6 11.3 0.00
1979 24.8 11.1 0.00
1978 19.2 12.6 0.00
1977 11.1 5.8 0.04
1976 19.4 10.0 0.00
1975 24.5 14.4 1.09
1974 22.8 14.8 0.00
1973 18.6 14.3 0.05
1972 12.5 7.8 0.25
1971 20.0 2.4 0.00
1970 20.8 5.5 0.00
1969 14.2 10.5 0.53
1968 19.3 8.5 0.01
1967 16.8 8.3 0.00
1966 14.6 9.6 0.00
1965 20.6 10.7 0.90
1964 19.4 10.4 0.00
1963 26.2 10.7 0.00
1962 15.6 6.4 0.06
1961 31.0 15.0 0.00
1960 19.2 6.9 0.02
1959 22.5 7.6 0.00
1958 21.2 12.3 0.00
1957 23.1 7.2 0.00
1956 19.1 9.9 0.00
1955 19.8 9.7 0.00
1954 21.5 12.4 0.00
1953 23.9 14.3 0.02
1952 18.0 10.9 0.86
1951 18.6 9.5 0.00
1950 17.7 8.9 0.04
1949 21.1 11.7 0.43
1948 21.2 6.4 0.00
1947 33.1 11.2 0.00
1946 21.8 13.1 0.04
1945 29.6 15.0 0.00
1944 17.1 12.9 0.00
1943 20.1 14.3 0.95
1942 22.9 7.5 0.00
1941 19.6 2.7 0.00
1940 20.5 14.0 0.00
1939 16.5 11.7 0.54
1938 25.1 9.7 0.00
1937 22.4 7.8 0.00
1936 22.6 11.1 0.27
1935 18.7 8.3 0.02
1934 26.4 13.1 0.00
1933 24.9 10.8 0.53
1932 27.0 14.1 2.47
1931 18.0 10.5 0.00
1930 27.6 11.2 0.00
1929 27.0 10.9 0.20
1928 15.4 10.3 0.00
1927 16.1 12.2 0.34
1926 26.6 12.4 0.00
1925 17.0 12.6 0.20
1924 25.3 11.0 0.00
1923 17.5 11.2 0.15
1922 16.1 11.2 0.02
1921 17.5 11.6 0.00
1920 23.2 14.4 1.82
1919 23.8 16.8 0.00
1918 24.7 17.3 0.45
1917 23.5 14.3 0.00
1916 14.5 5.8 0.90
1915 23.3 10.7 0.00
1914 19.4 10.7 0.05
1913 14.0 8.7 0.68
1912 16.8 5.3 0.00
1911 17.9 7.5 0.00
1910 18.5 9.4 0.00
1909 15.4 11.7 1.22
1908 22.0 8.6 0.00
1907 18.0 5.7 0.00
1906 16.0 6.5 0.00
1905 18.6 9.0 0.01
1904 16.5 5.5 0.00
1903 12.5 8.0 0.00
1902 16.0 9.0 0.00
1901 17.0 13.0 0.00
What's the all-time high for Basel on 9/18?
For the date of Sep 18, the highest temperature ever reached in Basel history is 33.1 °C which happened in 1947.
Highest Temperatures in Basel on September 18
Rank Temperature Year
1 33.1 °C 1947
2 31.0 °C 1961
3 29.8 °C 1987
4 29.6 °C 1945
5 29.2 °C 2018
6 28.8 °C 1989
7 27.6 °C 1930
8 27.0 °C 1929
8 27.0 °C 1932
10 26.8 °C 2003
What's the all-time low for Basel on 9/18?
For the date of Sep 18, the lowest temperature ever reached in Basel history is 2.4 °C which happened in 1971.
Lowest Temperatures in Basel on September 18
Rank Temperature Year
1 2.4 °C 1971
2 2.7 °C 1941
3 3.8 °C 2001
4 4.8 °C 1994
5 5.2 °C 1996
6 5.3 °C 2005
6 5.3 °C 1912
8 5.5 °C 1970
8 5.5 °C 1904
10 5.7 °C 1907
Lowest High Temperatures in Basel on September 18
Rank Temperature Year
1 11.0 °C 1994
2 11.1 °C 1977
3 12.5 °C 1903
3 12.5 °C 1972
5 13.7 °C 2008
6 13.8 °C 1984
7 13.9 °C 2005
8 14.0 °C 1913
9 14.2 °C 1969
10 14.5 °C 1916
What's the most it has ever rained in Basel on 9/18?
For the date of Sep 18, the most precipitation ever recorded in Basel history is 2.47 cm which happened in 1932.
All-Time Most Precipitation in Basel on September 18
Rank Precipitation Year
1 2.47 cm 1932
2 1.82 cm 1920
3 1.62 cm 1984
4 1.22 cm 1909
5 1.09 cm 1975
6 0.95 cm 1943
7 0.92 cm 2018
8 0.90 cm 1916
8 0.90 cm 1965
8 0.90 cm 2006
Weather Station Details
Years Station Coordinates
1901–2024 Basel Binningen location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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