Historical Ranked Daily Data for January - Maximum Hourly Rain / mm
Weather Variable:
| Highest | ||
| Rank | Value | Date |
| 1 | 8.2 | 11 Jan 2016 |
| 2 | 7.0 | 03 Jan 2012 |
| 3 | 7.0 | 19 Jan 2009 |
| 4 | 6.4 | 23 Jan 2025 |
| 5 | 5.8 | 25 Jan 2014 |
| 6 | 5.7 | 24 Jan 2018 |
| 7 | 5.5 | 02 Jan 2018 |
| 8 | 5.5 | 14 Jan 2011 |
| 9 | 5.3 | 26 Jan 2019 |
| 10 | 5.0 | 25 Jan 2009 |
| 11 | 5.0 | 23 Jan 2009 |
| 12 | 5.0 | 17 Jan 2009 |
| 13 | 4.8 | 08 Jan 2015 |
| 14 | 4.6 | 01 Jan 2025 |
| 15 | 4.6 | 04 Jan 2024 |
| 16 | 4.6 | 28 Jan 2021 |
| 17 | 4.6 | 12 Jan 2017 |
| 18 | 4.4 | 27 Jan 2020 |
| 19 | 4.4 | 09 Jan 2020 |
| 20 | 4.4 | 01 Jan 2012 |
| 21 | 4.3 | 14 Jan 2021 |
| 22 | 4.3 | 29 Jan 2017 |
| 23 | 4.3 | 22 Jan 2014 |
| 24 | 4.2 | 05 Jan 2025 |
| 25 | 4.1 | 13 Jan 2015 |
| Lowest | ||
| Rank | Value | Date |
| 1 | 0.0 | 01 Jan 2021 |
| 2 | 0.0 | 23 Jan 2021 |
| 3 | 0.0 | 25 Jan 2021 |
| 4 | 0.0 | 07 Jan 2022 |
| 5 | 0.0 | 12 Jan 2022 |
| 6 | 0.0 | 17 Jan 2022 |
| 7 | 0.0 | 20 Jan 2022 |
| 8 | 0.0 | 07 Jan 2025 |
| 9 | 0.0 | 11 Jan 2025 |
| 10 | 0.0 | 12 Jan 2025 |
| 11 | 0.2 | 11 Jan 2015 |
| 12 | 0.2 | 17 Jan 2015 |
| 13 | 0.2 | 01 Jan 2016 |
| 14 | 0.2 | 06 Jan 2016 |
| 15 | 0.2 | 08 Jan 2016 |
| 16 | 0.2 | 24 Jan 2016 |
| 17 | 0.2 | 29 Jan 2016 |
| 18 | 0.2 | 30 Jan 2017 |
| 19 | 0.2 | 11 Jan 2018 |
| 20 | 0.2 | 30 Jan 2018 |
| 21 | 0.2 | 12 Jan 2019 |
| 22 | 0.2 | 02 Jan 2021 |
| 23 | 0.2 | 03 Jan 2021 |
| 24 | 0.2 | 15 Jan 2022 |
| 25 | 0.2 | 02 Jan 2023 |
Ranked daily data from 2009 to present for London, nw3. For Maximum Hourly Rain, there are 260 valid values in Jan