Historical Ranked Daily Data for Aug - Maximum Hourly Rain / mm
Weather Variable:
| Highest | ||
| Rank | Value | Date |
| 1 | 23.3 | 10 Aug 2014 |
| 2 | 23.1 | 17 Aug 2022 |
| 3 | 14.1 | 05 Aug 2012 |
| 4 | 11.2 | 09 Aug 2017 |
| 5 | 10.0 | 16 Aug 2020 |
| 6 | 9.9 | 18 Aug 2017 |
| 7 | 9.9 | 06 Aug 2009 |
| 8 | 9.3 | 31 Aug 2015 |
| 9 | 9.3 | 18 Aug 2011 |
| 10 | 9.2 | 25 Aug 2014 |
| 11 | 9.2 | 24 Aug 2013 |
| 12 | 9.1 | 15 Aug 2022 |
| 13 | 7.7 | 26 Aug 2023 |
| 14 | 7.6 | 05 Aug 2013 |
| 15 | 7.5 | 18 Aug 2023 |
| 16 | 7.5 | 16 Aug 2018 |
| 17 | 7.0 | 29 Aug 2025 |
| 18 | 7.0 | 24 Aug 2024 |
| 19 | 6.6 | 24 Aug 2015 |
| 20 | 5.8 | 25 Aug 2022 |
| 21 | 5.8 | 23 Aug 2015 |
| 22 | 5.7 | 25 Aug 2011 |
| 23 | 5.6 | 11 Aug 2014 |
| 24 | 5.5 | 23 Aug 2011 |
| 25 | 5.5 | 25 Aug 2010 |
| Lowest | ||
| Rank | Value | Date |
| 1 | 0.2 | 17 Aug 2013 |
| 2 | 0.2 | 11 Aug 2015 |
| 3 | 0.2 | 15 Aug 2015 |
| 4 | 0.2 | 30 Aug 2015 |
| 5 | 0.2 | 03 Aug 2016 |
| 6 | 0.2 | 22 Aug 2016 |
| 7 | 0.2 | 25 Aug 2016 |
| 8 | 0.2 | 13 Aug 2018 |
| 9 | 0.2 | 17 Aug 2019 |
| 10 | 0.2 | 19 Aug 2019 |
| 11 | 0.2 | 28 Aug 2019 |
| 12 | 0.2 | 29 Aug 2020 |
| 13 | 0.2 | 02 Aug 2021 |
| 14 | 0.2 | 10 Aug 2021 |
| 15 | 0.2 | 17 Aug 2021 |
| 16 | 0.2 | 19 Aug 2021 |
| 17 | 0.2 | 27 Aug 2023 |
| 18 | 0.2 | 22 Aug 2024 |
| 19 | 0.2 | 11 Aug 2025 |
| 20 | 0.3 | 01 Aug 2009 |
| 21 | 0.3 | 26 Aug 2009 |
| 22 | 0.3 | 12 Aug 2010 |
| 23 | 0.3 | 02 Aug 2011 |
| 24 | 0.3 | 04 Aug 2012 |
| 25 | 0.3 | 08 Aug 2012 |
Ranked daily data from 2009 to present for London, NW3. For Maximum Hourly Rain, there are 182 valid values in Aug.