Historical Ranked Daily Data for May - Dense Fog /
Weather Variable:
| Highest | ||
| Rank | Value | Date |
| 1 | 1 | 11 May 2024 |
| 2 | 1 | 08 May 2024 |
| 3 | 0 | 31 May 2026 |
| 4 | 0 | 30 May 2026 |
| 5 | 0 | 29 May 2026 |
| 6 | 0 | 28 May 2026 |
| 7 | 0 | 27 May 2026 |
| 8 | 0 | 26 May 2026 |
| 9 | 0 | 25 May 2026 |
| 10 | 0 | 24 May 2026 |
| 11 | 0 | 23 May 2026 |
| 12 | 0 | 22 May 2026 |
| 13 | 0 | 21 May 2026 |
| 14 | 0 | 20 May 2026 |
| 15 | 0 | 19 May 2026 |
| 16 | 0 | 18 May 2026 |
| 17 | 0 | 17 May 2026 |
| 18 | 0 | 16 May 2026 |
| 19 | 0 | 15 May 2026 |
| 20 | 0 | 14 May 2026 |
| 21 | 0 | 13 May 2026 |
| 22 | 0 | 12 May 2026 |
| 23 | 0 | 11 May 2026 |
| 24 | 0 | 10 May 2026 |
| 25 | 0 | 09 May 2026 |
| Lowest | ||
| Rank | Value | Date |
| 1 | 0 | 01 May 2009 |
| 2 | 0 | 02 May 2009 |
| 3 | 0 | 03 May 2009 |
| 4 | 0 | 04 May 2009 |
| 5 | 0 | 05 May 2009 |
| 6 | 0 | 06 May 2009 |
| 7 | 0 | 07 May 2009 |
| 8 | 0 | 08 May 2009 |
| 9 | 0 | 09 May 2009 |
| 10 | 0 | 10 May 2009 |
| 11 | 0 | 11 May 2009 |
| 12 | 0 | 12 May 2009 |
| 13 | 0 | 13 May 2009 |
| 14 | 0 | 14 May 2009 |
| 15 | 0 | 15 May 2009 |
| 16 | 0 | 16 May 2009 |
| 17 | 0 | 17 May 2009 |
| 18 | 0 | 18 May 2009 |
| 19 | 0 | 19 May 2009 |
| 20 | 0 | 20 May 2009 |
| 21 | 0 | 21 May 2009 |
| 22 | 0 | 22 May 2009 |
| 23 | 0 | 23 May 2009 |
| 24 | 0 | 24 May 2009 |
| 25 | 0 | 25 May 2009 |
Ranked daily data from 2009 to present for London, NW3. For Dense Fog, there are 558 valid values in May, and 2 values > 0.