Historical Ranked Daily Data for May - Temperature Range / °C
Weather Variable:
| Highest | ||
| Rank | Value | Date |
| 1 | 19.4 | 26 May 2026 |
| 2 | 19.1 | 01 May 2025 |
| 3 | 18.7 | 07 May 2018 |
| 4 | 18.5 | 23 May 2010 |
| 5 | 17.5 | 25 May 2026 |
| 6 | 17.5 | 24 May 2026 |
| 7 | 17.2 | 07 May 2020 |
| 8 | 17.1 | 08 May 2018 |
| 9 | 17.0 | 03 May 2013 |
| 10 | 16.9 | 28 May 2026 |
| 11 | 16.8 | 06 May 2018 |
| 12 | 16.8 | 25 May 2020 |
| 13 | 16.7 | 01 May 2026 |
| 14 | 16.5 | 15 May 2020 |
| 15 | 16.0 | 23 May 2025 |
| 16 | 15.9 | 22 May 2026 |
| 17 | 15.9 | 09 May 2022 |
| 18 | 15.7 | 30 May 2026 |
| 19 | 15.5 | 17 May 2022 |
| 20 | 15.4 | 20 May 2025 |
| 21 | 15.4 | 06 May 2011 |
| 22 | 15.4 | 12 May 2026 |
| 23 | 15.3 | 26 May 2020 |
| 24 | 15.3 | 01 May 2016 |
| 25 | 15.3 | 31 May 2021 |
| Lowest | ||
| Rank | Value | Date |
| 1 | 1.4 | 03 May 2012 |
| 2 | 1.4 | 12 May 2016 |
| 3 | 1.9 | 10 May 2016 |
| 4 | 1.9 | 22 May 2024 |
| 5 | 2.2 | 04 May 2012 |
| 6 | 2.3 | 31 May 2016 |
| 7 | 2.6 | 31 May 2024 |
| 8 | 2.7 | 14 May 2015 |
| 9 | 2.7 | 08 May 2010 |
| 10 | 2.8 | 21 May 2021 |
| 11 | 2.9 | 27 May 2025 |
| 12 | 2.9 | 10 May 2012 |
| 13 | 3.0 | 28 May 2013 |
| 14 | 3.0 | 14 May 2024 |
| 15 | 3.1 | 20 May 2012 |
| 16 | 3.1 | 13 May 2023 |
| 17 | 3.2 | 01 May 2014 |
| 18 | 3.2 | 03 May 2024 |
| 19 | 3.4 | 25 May 2016 |
| 20 | 3.4 | 18 May 2016 |
| 21 | 3.5 | 24 May 2013 |
| 22 | 3.5 | 27 May 2014 |
| 23 | 3.7 | 13 May 2009 |
| 24 | 3.7 | 29 May 2010 |
| 25 | 3.7 | 29 May 2013 |
Ranked daily data from 2009 to present for London, NW3. For Temperature Range, there are 558 valid values in May.