Historical Ranked Daily Data for April - Mean Humidity / %
Weather Variable:
| Highest | ||
| Rank | Value | Date |
| 1 | 96 | 17 Apr 2009 |
| 2 | 96 | 11 Apr 2009 |
| 3 | 95 | 09 Apr 2018 |
| 4 | 95 | 12 Apr 2009 |
| 5 | 95 | 12 Apr 2018 |
| 6 | 94 | 28 Apr 2012 |
| 7 | 94 | 11 Apr 2018 |
| 8 | 93 | 11 Apr 2013 |
| 9 | 93 | 25 Apr 2014 |
| 10 | 92 | 10 Apr 2018 |
| 11 | 92 | 08 Apr 2018 |
| 12 | 91 | 28 Apr 2018 |
| 13 | 91 | 02 Apr 2018 |
| 14 | 91 | 06 Apr 2014 |
| 15 | 90 | 07 Apr 2019 |
| 16 | 90 | 08 Apr 2019 |
| 17 | 90 | 20 Apr 2014 |
| 18 | 90 | 28 Apr 2020 |
| 19 | 89 | 07 Apr 2014 |
| 20 | 89 | 09 Apr 2012 |
| 21 | 89 | 16 Apr 2009 |
| 22 | 88 | 29 Apr 2012 |
| 23 | 88 | 19 Apr 2012 |
| 24 | 88 | 27 Apr 2024 |
| 25 | 88 | 01 Apr 2023 |
| Lowest | ||
| Rank | Value | Date |
| 1 | 48 | 21 Apr 2011 |
| 2 | 48 | 15 Apr 2015 |
| 3 | 48 | 25 Apr 2017 |
| 4 | 50 | 22 Apr 2011 |
| 5 | 51 | 19 Apr 2017 |
| 6 | 51 | 24 Apr 2010 |
| 7 | 52 | 21 Apr 2019 |
| 8 | 52 | 28 Apr 2015 |
| 9 | 52 | 30 Apr 2026 |
| 10 | 52 | 21 Apr 2010 |
| 11 | 52 | 19 Apr 2011 |
| 12 | 52 | 23 Apr 2011 |
| 13 | 52 | 29 Apr 2013 |
| 14 | 52 | 30 Apr 2017 |
| 15 | 53 | 23 Apr 2010 |
| 16 | 53 | 27 Apr 2015 |
| 17 | 53 | 05 Apr 2020 |
| 18 | 54 | 17 Apr 2014 |
| 19 | 54 | 12 Apr 2015 |
| 20 | 54 | 13 Apr 2016 |
| 21 | 54 | 18 Apr 2017 |
| 22 | 54 | 19 Apr 2018 |
| 23 | 54 | 12 Apr 2011 |
| 24 | 54 | 20 Apr 2011 |
| 25 | 54 | 10 Apr 2026 |
Ranked daily data from 2009 to present for London, NW3. For Mean Humidity, there are 540 valid values in Apr.