Historical Ranked Daily Data for Sep - Maximum Rain Rate / mm/h
Weather Variable:
| Highest | ||
| Rank | Value | Date |
| 1 | 126 | 20 Sep 2014 |
| 2 | 120 | 16 Sep 2016 |
| 3 | 100 | 06 Sep 2011 |
| 4 | 92 | 27 Sep 2019 |
| 5 | 72 | 23 Sep 2024 |
| 6 | 72 | 06 Sep 2022 |
| 7 | 66 | 24 Sep 2019 |
| 8 | 66 | 26 Sep 2016 |
| 9 | 66 | 19 Sep 2014 |
| 10 | 60 | 28 Sep 2021 |
| 11 | 60 | 12 Sep 2012 |
| 12 | 54 | 24 Sep 2015 |
| 13 | 53 | 11 Sep 2017 |
| 14 | 50 | 08 Sep 2010 |
| 15 | 48 | 26 Sep 2024 |
| 16 | 48 | 05 Sep 2024 |
| 17 | 48 | 16 Sep 2015 |
| 18 | 48 | 01 Sep 2015 |
| 19 | 42 | 08 Sep 2024 |
| 20 | 42 | 21 Sep 2023 |
| 21 | 42 | 20 Sep 2023 |
| 22 | 42 | 01 Sep 2023 |
| 23 | 42 | 22 Sep 2015 |
| 24 | 42 | 02 Sep 2015 |
| 25 | 42 | 13 Sep 2013 |
| Lowest | ||
| Rank | Value | Date |
| 1 | 0 | 15 Sep 2022 |
| 2 | 0.4 | 25 Sep 2017 |
| 3 | 0.4 | 23 Sep 2019 |
| 4 | 0.4 | 02 Sep 2020 |
| 5 | 0.6 | 21 Sep 2011 |
| 6 | 0.6 | 04 Sep 2020 |
| 7 | 0.7 | 17 Sep 2025 |
| 8 | 0.7 | 28 Sep 2025 |
| 9 | 0.8 | 20 Sep 2018 |
| 10 | 0.8 | 23 Sep 2022 |
| 11 | 0.9 | 11 Sep 2013 |
| 12 | 1.0 | 14 Sep 2013 |
| 13 | 1.0 | 02 Sep 2022 |
| 14 | 1.1 | 30 Sep 2021 |
| 15 | 1.2 | 12 Sep 2018 |
| 16 | 1.3 | 19 Sep 2013 |
| 17 | 1.4 | 12 Sep 2013 |
| 18 | 1.4 | 11 Sep 2018 |
| 19 | 1.5 | 17 Sep 2011 |
| 20 | 1.5 | 15 Sep 2015 |
| 21 | 2.0 | 17 Sep 2015 |
| 22 | 2.2 | 22 Sep 2019 |
| 23 | 2.4 | 03 Sep 2024 |
| 24 | 2.4 | 24 Sep 2024 |
| 25 | 2.5 | 26 Sep 2012 |
Ranked daily data from 2009 to present for London, NW3. For Maximum Rain Rate, there are 151 valid values in Sep.