Sep 7 - Low wind chill -3.6. Old record -2.0 in 1995. Also 2nd earliest date in fall (after Jul 15) to reach wind chill this low.
Sep 8 - Low wind chill -4.1. Old record -2.6 in 2006. Also earliest date in fall (after Jul 15) to reach wind chill this low.
Sep 9 - Low maximum dewpoint -0.2°C. Old record 4.5°C in 1988. Also earliest date in fall (after Jul 15) that dewpoint did not reach freezing, since 1953.
Sep 17 - Low minimum temperature -3.7°C. Old record -2.8°C in 1875 and 1894.
Sep 17 - Low maximum dewpoint 0.5°C. Old record 3.2°C in 1980.
Sep 17 - Low dewpoint -5.7°C. Old record -2.5°C in 1980.
Sep 22 - High humidex 30.2. Old record 28.5 in 2008.