Historical Ranked Daily Data for May - Mean Pressure / hPa
Weather Variable:
| Highest | ||
| Rank | Value | Date |
| 1 | 1040 | 13 May 2019 |
| 2 | 1036 | 12 May 2019 |
| 3 | 1036 | 27 May 2020 |
| 4 | 1036 | 26 May 2020 |
| 5 | 1036 | 12 May 2012 |
| 6 | 1035 | 25 May 2020 |
| 7 | 1035 | 28 May 2020 |
| 8 | 1035 | 14 May 2019 |
| 9 | 1035 | 15 May 2014 |
| 10 | 1032 | 26 May 2023 |
| 11 | 1032 | 25 May 2026 |
| 12 | 1032 | 16 May 2014 |
| 13 | 1032 | 20 May 2010 |
| 14 | 1031 | 24 May 2026 |
| 15 | 1031 | 24 May 2020 |
| 16 | 1031 | 29 May 2009 |
| 17 | 1031 | 30 May 2023 |
| 18 | 1031 | 25 May 2023 |
| 19 | 1030 | 21 May 2010 |
| 20 | 1030 | 14 May 2014 |
| 21 | 1030 | 08 May 2024 |
| 22 | 1030 | 08 May 2022 |
| 23 | 1030 | 19 May 2010 |
| 24 | 1030 | 13 May 2012 |
| 25 | 1029 | 17 May 2023 |
| Lowest | ||
| Rank | Value | Date |
| 1 | 994 | 15 May 2013 |
| 2 | 994 | 05 May 2015 |
| 3 | 995 | 11 May 2017 |
| 4 | 995 | 08 May 2019 |
| 5 | 996 | 12 May 2017 |
| 6 | 998 | 03 May 2015 |
| 7 | 998 | 21 May 2021 |
| 8 | 998 | 09 May 2019 |
| 9 | 998 | 09 May 2021 |
| 10 | 999 | 16 May 2021 |
| 11 | 1000 | 16 May 2013 |
| 12 | 1000 | 28 May 2013 |
| 13 | 1000 | 01 May 2020 |
| 14 | 1001 | 04 May 2021 |
| 15 | 1001 | 22 May 2014 |
| 16 | 1002 | 04 May 2015 |
| 17 | 1002 | 10 May 2021 |
| 18 | 1002 | 15 May 2009 |
| 19 | 1002 | 15 May 2021 |
| 20 | 1003 | 14 May 2013 |
| 21 | 1003 | 14 May 2024 |
| 22 | 1003 | 11 May 2016 |
| 23 | 1003 | 12 May 2016 |
| 24 | 1003 | 14 May 2026 |
| 25 | 1003 | 11 May 2014 |
Ranked daily data from 2009 to present for London, NW3. For Mean Pressure, there are 558 valid values in May.