Historical Ranked Monthly Data for April - Mean Rain Rate / mm/h
Weather Variable:
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| Top monthly mean | ||
| Rank | Value | Date |
| 1 | 1.6 | Apr 2026 |
| 2 | 1.5 | Apr 2022 |
| 3 | 1.3 | Apr 2010 |
| 4 | 1.2 | Apr 2025 |
| 5 | 1.2 | Apr 2012 |
| 6 | 1.0 | Apr 2009 |
| 7 | 1.0 | Apr 2020 |
| 8 | 0.9 | Apr 2024 |
| 9 | 0.9 | Apr 2013 |
| 10 | 0.9 | Apr 2016 |
| Bottom monthly mean | ||
| Rank | Value | Date |
| 1 | 0.5 | Apr 2011 |
| 2 | 0.5 | Apr 2021 |
| 3 | 0.6 | Apr 2019 |
| 4 | 0.7 | Apr 2017 |
| 5 | 0.7 | Apr 2018 |
| 6 | 0.8 | Apr 2015 |
| 7 | 0.8 | Apr 2014 |
| 8 | 0.8 | Apr 2023 |
| 9 | 0.9 | Apr 2016 |
| 10 | 0.9 | Apr 2013 |
Mean Rain Rate monthly extremes: highest and lowest monthly means.
There are 18 valid months for the chosen period from 2009 to present for Apr in London, NW3.
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