June 22, 2026, was an exceptionally hot day at the NBCN weather station in Binningen. The minimum temperature was 19.2 degrees Celsius, the average temperature was 28.0 degrees Celsius, and the maximum temperature reached 36.6 degrees Celsius.

Over the last 30 days, the average temperature was 21.03 degrees Celsius, with a minimum of 9.4 degrees and a maximum of 36.6 degrees. During this period, there were 21 summer days and 12 hot days, but no tropical nights. This season has been notably warm, and the maximum temperature on June 22 is the highest recorded in the last 365 days, with the mean temperature ranking second. Looking at all years for this season, the hottest day in June remains June 27, 1947, with a maximum of 38.4 degrees Celsius. The top five hottest June days are listed in Table 1, which includes June 22, 2026, in fourth place with 36.6 degrees Celsius. Historically, the maximum temperature on June 22 ranks as the fourth highest for any June day on record.