Historical Ranked Daily Data for Sep - Maximum Temperature / °C
Weather Variable:
| Highest | ||
| Rank | Value | Date |
| 1 | 32.0 | 13 Sep 2016 |
| 2 | 31.7 | 09 Sep 2023 |
| 3 | 30.6 | 06 Sep 2023 |
| 4 | 30.5 | 07 Sep 2023 |
| 5 | 30.4 | 10 Sep 2023 |
| 6 | 29.7 | 08 Sep 2023 |
| 7 | 29.1 | 15 Sep 2020 |
| 8 | 28.7 | 05 Sep 2023 |
| 9 | 28.4 | 07 Sep 2021 |
| 10 | 28.3 | 04 Sep 2023 |
| 11 | 28.2 | 15 Sep 2016 |
| 12 | 28.1 | 05 Sep 2013 |
| 13 | 28.0 | 08 Sep 2021 |
| 14 | 27.9 | 07 Sep 2016 |
| 15 | 27.6 | 09 Sep 2012 |
| 16 | 27.4 | 01 Sep 2024 |
| 17 | 27.4 | 30 Sep 2011 |
| 18 | 27.3 | 14 Sep 2020 |
| 19 | 27.1 | 08 Sep 2009 |
| 20 | 27.0 | 06 Sep 2021 |
| 21 | 27.0 | 14 Sep 2016 |
| 22 | 26.9 | 29 Sep 2011 |
| 23 | 26.8 | 19 Sep 2025 |
| 24 | 26.8 | 04 Sep 2013 |
| 25 | 26.7 | 08 Sep 2012 |
| Lowest | ||
| Rank | Value | Date |
| 1 | 11.6 | 26 Sep 2020 |
| 2 | 11.9 | 23 Sep 2012 |
| 3 | 12.4 | 27 Sep 2024 |
| 4 | 12.9 | 09 Sep 2013 |
| 5 | 13.1 | 27 Sep 2022 |
| 6 | 13.2 | 27 Sep 2020 |
| 7 | 13.4 | 25 Sep 2010 |
| 8 | 13.4 | 17 Sep 2013 |
| 9 | 13.6 | 24 Sep 2010 |
| 10 | 13.6 | 14 Sep 2013 |
| 11 | 13.6 | 25 Sep 2020 |
| 12 | 13.8 | 26 Sep 2010 |
| 13 | 13.8 | 22 Sep 2018 |
| 14 | 13.8 | 28 Sep 2022 |
| 15 | 14.2 | 16 Sep 2013 |
| 16 | 14.2 | 22 Sep 2015 |
| 17 | 14.2 | 23 Sep 2018 |
| 18 | 14.4 | 26 Sep 2022 |
| 19 | 14.5 | 12 Sep 2024 |
| 20 | 14.6 | 28 Sep 2024 |
| 21 | 14.6 | 29 Sep 2024 |
| 22 | 14.7 | 19 Sep 2017 |
| 23 | 14.8 | 05 Sep 2015 |
| 24 | 14.8 | 16 Sep 2015 |
| 25 | 14.9 | 24 Sep 2012 |
Ranked daily data from 2009 to present for London, NW3. For Maximum Temperature, there are 510 valid values in Sep.