Historical Ranked Daily Data for May - Mean Humidity / %
Weather Variable:
| Highest | ||
| Rank | Value | Date |
| 1 | 96 | 28 May 2014 |
| 2 | 94 | 22 May 2024 |
| 3 | 94 | 27 May 2014 |
| 4 | 92 | 06 May 2024 |
| 5 | 92 | 29 May 2018 |
| 6 | 92 | 10 May 2012 |
| 7 | 92 | 03 May 2012 |
| 8 | 91 | 21 May 2024 |
| 9 | 90 | 03 May 2024 |
| 10 | 90 | 30 May 2018 |
| 11 | 90 | 28 May 2024 |
| 12 | 90 | 30 May 2013 |
| 13 | 90 | 09 May 2012 |
| 14 | 90 | 02 May 2024 |
| 15 | 90 | 06 May 2023 |
| 16 | 90 | 01 May 2014 |
| 17 | 89 | 13 May 2023 |
| 18 | 89 | 04 May 2012 |
| 19 | 89 | 12 May 2023 |
| 20 | 88 | 11 May 2016 |
| 21 | 88 | 29 May 2013 |
| 22 | 88 | 02 May 2010 |
| 23 | 88 | 31 May 2018 |
| 24 | 87 | 16 May 2024 |
| 25 | 87 | 02 May 2012 |
| Lowest | ||
| Rank | Value | Date |
| 1 | 39 | 02 May 2013 |
| 2 | 41 | 05 May 2016 |
| 3 | 45 | 08 May 2016 |
| 4 | 46 | 25 May 2011 |
| 5 | 47 | 27 May 2013 |
| 6 | 48 | 06 May 2011 |
| 7 | 49 | 26 May 2026 |
| 8 | 49 | 27 May 2012 |
| 9 | 49 | 28 May 2015 |
| 10 | 49 | 03 May 2013 |
| 11 | 50 | 26 May 2013 |
| 12 | 50 | 04 May 2016 |
| 13 | 50 | 06 May 2016 |
| 14 | 51 | 24 May 2011 |
| 15 | 51 | 23 May 2019 |
| 16 | 52 | 24 May 2010 |
| 17 | 52 | 01 May 2011 |
| 18 | 52 | 02 May 2011 |
| 19 | 52 | 12 May 2015 |
| 20 | 52 | 07 May 2013 |
| 21 | 52 | 30 May 2026 |
| 22 | 52 | 13 May 2015 |
| 23 | 52 | 29 May 2026 |
| 24 | 53 | 07 May 2016 |
| 25 | 53 | 03 May 2009 |
Ranked daily data from 2009 to present for London, NW3. For Mean Humidity, there are 558 valid values in May.