Historical Ranked Daily Data for May - Rainfall / mm
Weather Variable:
| Highest | ||
| Rank | Value | Date |
| 1 | 35.6 | 17 May 2017 |
| 2 | 31.7 | 01 May 2010 |
| 3 | 22.4 | 02 May 2010 |
| 4 | 17.7 | 11 May 2016 |
| 5 | 16.4 | 01 May 2012 |
| 6 | 16.3 | 29 May 2018 |
| 7 | 16.0 | 29 May 2017 |
| 8 | 15.0 | 18 May 2017 |
| 9 | 14.7 | 28 May 2013 |
| 10 | 14.5 | 01 May 2014 |
| 11 | 14.5 | 26 May 2011 |
| 12 | 14.4 | 14 May 2015 |
| 13 | 13.6 | 08 May 2019 |
| 14 | 12.9 | 06 May 2015 |
| 15 | 12.7 | 06 May 2024 |
| 16 | 12.4 | 31 May 2016 |
| 17 | 12.0 | 17 May 2021 |
| 18 | 11.9 | 26 May 2009 |
| 19 | 10.4 | 09 May 2023 |
| 20 | 9.8 | 10 May 2012 |
| 21 | 9.3 | 24 May 2013 |
| 22 | 8.9 | 08 May 2021 |
| 23 | 8.9 | 26 May 2014 |
| 24 | 8.8 | 14 May 2013 |
| 25 | 8.8 | 16 May 2010 |
| 181 | 0.0 | Today |
| 144 | 0.3 | Yesterday |
| Lowest | ||
| Rank | Value | Date |
| 1 | 0.0 | 01 May 2009 |
| 2 | 0.0 | 02 May 2009 |
| 3 | 0.0 | 03 May 2009 |
| 4 | 0.0 | 06 May 2009 |
| 5 | 0.0 | 07 May 2009 |
| 6 | 0.0 | 09 May 2009 |
| 7 | 0.0 | 10 May 2009 |
| 8 | 0.0 | 11 May 2009 |
| 9 | 0.0 | 12 May 2009 |
| 10 | 0.0 | 20 May 2009 |
| 11 | 0.0 | 21 May 2009 |
| 12 | 0.0 | 22 May 2009 |
| 13 | 0.0 | 23 May 2009 |
| 14 | 0.0 | 24 May 2009 |
| 15 | 0.0 | 28 May 2009 |
| 16 | 0.0 | 29 May 2009 |
| 17 | 0.0 | 30 May 2009 |
| 18 | 0.0 | 31 May 2009 |
| 19 | 0.0 | 04 May 2010 |
| 20 | 0.0 | 05 May 2010 |
| 21 | 0.0 | 06 May 2010 |
| 22 | 0.0 | 07 May 2010 |
| 23 | 0.0 | 10 May 2010 |
| 24 | 0.0 | 11 May 2010 |
| 25 | 0.0 | 13 May 2010 |
| 302 | 0.0 | Today |
| 339 | 0.3 | Yesterday |
Ranked daily data from 2009 to present for London, nw3. For Rainfall, there are 482 valid values in May, and 180 values > 0