Historical Ranked Daily Data for September - Rainfall / mm
Weather Variable:
| Highest | ||
| Rank | Value | Date |
| 1 | 32.0 | 24 Sep 2019 |
| 2 | 32.0 | 13 Sep 2013 |
| 3 | 29.3 | 20 Sep 2014 |
| 4 | 26.1 | 16 Sep 2015 |
| 5 | 25.5 | 15 Sep 2009 |
| 6 | 21.8 | 23 Sep 2012 |
| 7 | 21.7 | 06 Sep 2011 |
| 8 | 21.4 | 20 Sep 2023 |
| 9 | 20.6 | 16 Sep 2016 |
| 10 | 17.5 | 14 Sep 2021 |
| 11 | 13.9 | 27 Sep 2017 |
| 12 | 12.5 | 30 Sep 2022 |
| 13 | 12.1 | 23 Sep 2018 |
| 14 | 11.7 | 29 Sep 2010 |
| 15 | 10.8 | 28 Sep 2021 |
| 16 | 10.1 | 06 Sep 2010 |
| 17 | 9.5 | 24 Sep 2012 |
| 18 | 9.3 | 02 Sep 2009 |
| 19 | 9.1 | 07 Sep 2022 |
| 20 | 8.8 | 22 Sep 2018 |
| 21 | 8.8 | 04 Sep 2017 |
| 22 | 8.2 | 18 Sep 2023 |
| 23 | 8.2 | 23 Sep 2010 |
| 24 | 8.1 | 28 Sep 2017 |
| 25 | 7.7 | 11 Sep 2017 |
| Lowest | ||
| Rank | Value | Date |
| 1 | 0.0 | 04 Sep 2009 |
| 2 | 0.0 | 05 Sep 2009 |
| 3 | 0.0 | 06 Sep 2009 |
| 4 | 0.0 | 07 Sep 2009 |
| 5 | 0.0 | 08 Sep 2009 |
| 6 | 0.0 | 09 Sep 2009 |
| 7 | 0.0 | 10 Sep 2009 |
| 8 | 0.0 | 11 Sep 2009 |
| 9 | 0.0 | 12 Sep 2009 |
| 10 | 0.0 | 13 Sep 2009 |
| 11 | 0.0 | 14 Sep 2009 |
| 12 | 0.0 | 17 Sep 2009 |
| 13 | 0.0 | 18 Sep 2009 |
| 14 | 0.0 | 19 Sep 2009 |
| 15 | 0.0 | 20 Sep 2009 |
| 16 | 0.0 | 21 Sep 2009 |
| 17 | 0.0 | 22 Sep 2009 |
| 18 | 0.0 | 23 Sep 2009 |
| 19 | 0.0 | 24 Sep 2009 |
| 20 | 0.0 | 25 Sep 2009 |
| 21 | 0.0 | 26 Sep 2009 |
| 22 | 0.0 | 27 Sep 2009 |
| 23 | 0.0 | 28 Sep 2009 |
| 24 | 0.0 | 29 Sep 2009 |
| 25 | 0.0 | 30 Sep 2009 |
Ranked daily data from 2009 to present for London, nw3. For Rainfall, there are 450 valid values in Sep, and 152 values > 0