Today was an unusually hot day for late September. The minimum temperature was 9.3 °C, the maximum reached 30.1 °C, and the daily mean was 20.2 °C. Because the maximum temperature reached at least 30 °C, this qualifies as a hot day, also known as a heat day. No tropical night was recorded, meaning the temperature did fall below 20 °C overnight.

Looking at the last 30 days, the average air temperature was 18.9 °C, with a minimum of 5.8 °C and a maximum of 32.6 °C. During this period there were 17 summer days, defined as days with a maximum of at least 25 °C, and 4 hot days. There were no tropical nights in the past 30 days.

For the current season, today’s maximum temperature of 30.1 °C ranks 76th among all September days on record at this station. The mean temperature of 20.2 °C ranks 233rd. Compared to the last 365 days, today’s maximum temperature ranks 60th and the mean temperature ranks 88th.

The hottest September day ever recorded at this station occurred on 6 September 1949, with a maximum of 35.0 °C. The second hottest was 12 September 1947 at 34.7 °C, followed by 19 September 1947 at 34.5 °C. The fourth and fifth hottest September days were 5 September 1949 and 3 September 1962, both reaching 34.1 °C. These top five values are shown in Table 1. Today’s maximum of 30.1 °C therefore ranks 76th historically for September, placing it well outside the top five but still among the warmer September days on record.