Historical Ranked Daily Data for July - Mean Dew Point / °C
Weather Variable:
| Highest | ||
| Rank | Value | Date |
| 1 | 18.3 | 19 Jul 2021 |
| 2 | 17.9 | 21 Jul 2021 |
| 3 | 17.8 | 20 Jul 2021 |
| 4 | 17.6 | 26 Jul 2019 |
| 5 | 17.5 | 08 Jul 2023 |
| 6 | 17.5 | 31 Jul 2022 |
| 7 | 17.4 | 25 Jul 2019 |
| 8 | 17.3 | 01 Jul 2025 |
| 9 | 17.2 | 20 Jul 2024 |
| 10 | 17.2 | 18 Jul 2021 |
| 11 | 17.1 | 27 Jul 2023 |
| 12 | 17.1 | 23 Jul 2013 |
| 13 | 17.1 | 20 Jul 2022 |
| 14 | 17.0 | 22 Jul 2019 |
| 15 | 16.9 | 26 Jul 2018 |
| 16 | 16.9 | 23 Jul 2019 |
| 17 | 16.9 | 19 Jul 2024 |
| 18 | 16.9 | 24 Jul 2019 |
| 19 | 16.6 | 27 Jul 2018 |
| 20 | 16.4 | 26 Jul 2021 |
| 21 | 16.4 | 20 Jul 2014 |
| 22 | 16.4 | 22 Jul 2021 |
| 23 | 16.4 | 30 Jul 2024 |
| 24 | 16.3 | 19 Jul 2014 |
| 25 | 16.2 | 19 Jul 2025 |
| 135 | 14.2 | Today |
| 450 | 10.0 | Yesterday |
| Lowest | ||
| Rank | Value | Date |
| 1 | 5.2 | 09 Jul 2015 |
| 2 | 5.8 | 01 Jul 2011 |
| 3 | 6.2 | 30 Jul 2012 |
| 4 | 6.8 | 31 Jul 2015 |
| 5 | 6.8 | 24 Jul 2011 |
| 6 | 6.9 | 28 Jul 2012 |
| 7 | 7.0 | 10 Jul 2015 |
| 8 | 7.1 | 19 Jul 2015 |
| 9 | 7.2 | 30 Jul 2015 |
| 10 | 7.2 | 02 Jul 2016 |
| 11 | 7.2 | 03 Jul 2025 |
| 12 | 7.3 | 06 Jul 2016 |
| 13 | 7.3 | 09 Jul 2009 |
| 14 | 7.3 | 06 Jul 2010 |
| 15 | 7.5 | 14 Jul 2011 |
| 16 | 7.5 | 25 Jul 2011 |
| 17 | 7.5 | 29 Jul 2015 |
| 18 | 7.7 | 11 Jul 2013 |
| 19 | 7.8 | 13 Jul 2011 |
| 20 | 7.8 | 23 Jul 2011 |
| 21 | 7.9 | 09 Jul 2013 |
| 22 | 7.9 | 18 Jul 2015 |
| 23 | 7.9 | 10 Jul 2009 |
| 24 | 7.9 | 30 Jul 2011 |
| 25 | 8.0 | 01 Jul 2013 |
| 397 | 14.2 | Today |
| 82 | 10.0 | Yesterday |
Ranked daily data from 2009 to present for London, NW3. For Mean Dew Point, there are 531 valid values in Jul.