Basel Weather Records

Basel, Switzerland weather averages and records from 1901–2024 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Basel, Switzerland was 39.0 °C which occurred on July 2, 1952.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Basel, Switzerland was -24.1 °C which occurred on January 22, 1942.
Lowest Temperatures: All-Time By Year
Basel Weather by Month
Averages based on the years 1991–2020
Month Average (°C) Record (°C) Average (cm)
High ☀️ Low 🌙 High ☀️ Low 🌙 Precipitation 💧
January 5.3 -0.3 19.0 -24.1 4.7
February 7.1 -0.2 22.0 -23.8 4.5
March 11.9 2.6 25.2 -14.8 4.9
April 16.2 5.5 30.5 -6.3 6.3
May 20.0 9.5 33.5 -2.7 9.5
June 23.8 13.1 38.4 1.1 8.6
July 25.8 14.9 39.0 5.1 8.9
August 25.3 14.8 38.7 3.6 8.8
September 20.7 11.0 35.0 -1.3 7.0
October 15.4 7.6 29.6 -5.5 7.4
November 9.2 3.2 22.5 -11.0 6.5
December 5.7 0.4 20.6 -20.9 6.5
Entire year 15.6 6.9 39.0 -24.1 83.7
More Basel Weather Records
1901–2024
Highest daily low 22.4 °C July 1, 2019
Lowest daily high -14.3 °C February 10, 1956
Greatest daily range
(Difference of high and low)
25.4 °C July 13, 1949
Greatest difference in daily high
over two conscutive days
17.3 °C May 22–23, 1908
Most daily precipitation 8.5 cm July 26, 1991
Most monthly precipitation 22.0 cm November 1950
Most yearly precipitation 120.5 cm 1939
Most yearly days with precipitation 216 1922
Earliest freeze September 15 1931
Earliest day ≥ 25 °C March 30 1989
Earliest day ≥ 30 °C April 17 1934
Earliest day ≥ 35 °C June 2 1947
Latest freeze May 14 1935
Latest day ≥ 25 °C October 25 1949
Latest day ≥ 30 °C September 23 1949
Latest day ≥ 35 °C September 6 1949
Most days in a year < 0 °C 106 1929
Most days in a year ≥ 20 °C 166 1949
Most days in a year ≥ 25 °C 108 1947
Most days in a year ≥ 30 °C 49 1947
Most days in a year ≥ 35 °C 21 1947
Basel Weather Streaks
Most consecutive days...
With precipitation 23 days Nov 4–26, 1919
Without precipitation 36 days Jun 3 – Jul 8, 1976
Freezing temperatures
High temperature ≤ 0 °C
23 days Dec 24, 1996 – Jan 15, 1997
High temperature ≥ 20 °C 103 days May 30 – Sep 9, 2022
High temperature ≥ 25 °C 32 days May 30 – Jun 30, 2003
High temperature ≥ 30 °C 17 days Jun 21 – Jul 7, 1976
High temperature ≥ 35 °C 12 days Jul 24 – Aug 4, 1947
Plant Hardiness Zone
8A
Basel is in plant hardiness zone 8A
based on average yearly minimum temperature from 1991–2020
Basel Weather by Year
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Weather Station Details
Years Station Coordinates
1901–2024 Basel Binningen location