Historical Ranked Daily Data for December - Sun Anomaly / %
Weather Variable:
| Highest | ||
| Rank | Value | Date |
| 1 | 353 | 02 Dec 2021 |
| 2 | 348 | 02 Dec 2019 |
| 3 | 343 | 04 Dec 2019 |
| 4 | 343 | 28 Dec 2017 |
| 5 | 343 | 06 Dec 2014 |
| 6 | 339 | 31 Dec 2025 |
| 7 | 334 | 16 Dec 2022 |
| 8 | 334 | 15 Dec 2022 |
| 9 | 334 | 01 Dec 2020 |
| 10 | 334 | 25 Dec 2019 |
| 11 | 334 | 09 Dec 2019 |
| 12 | 334 | 13 Dec 2018 |
| 13 | 334 | 18 Dec 2017 |
| 14 | 334 | 29 Dec 2016 |
| 15 | 334 | 04 Dec 2016 |
| 16 | 334 | 29 Dec 2014 |
| 17 | 334 | 29 Dec 2013 |
| 18 | 334 | 11 Dec 2012 |
| 19 | 334 | 02 Dec 2012 |
| 20 | 334 | 20 Dec 2009 |
| 21 | 329 | 25 Dec 2025 |
| 22 | 324 | 11 Dec 2016 |
| 23 | 315 | 13 Dec 2025 |
| 24 | 315 | 28 Dec 2014 |
| 25 | 310 | 11 Dec 2018 |
| Lowest | ||
| Rank | Value | Date |
| 1 | 0 | 03 Dec 2009 |
| 2 | 0 | 07 Dec 2009 |
| 3 | 0 | 21 Dec 2009 |
| 4 | 0 | 29 Dec 2009 |
| 5 | 0 | 30 Dec 2009 |
| 6 | 0 | 01 Dec 2010 |
| 7 | 0 | 02 Dec 2010 |
| 8 | 0 | 03 Dec 2010 |
| 9 | 0 | 04 Dec 2010 |
| 10 | 0 | 06 Dec 2010 |
| 11 | 0 | 10 Dec 2010 |
| 12 | 0 | 15 Dec 2010 |
| 13 | 0 | 16 Dec 2010 |
| 14 | 0 | 18 Dec 2010 |
| 15 | 0 | 19 Dec 2010 |
| 16 | 0 | 21 Dec 2010 |
| 17 | 0 | 22 Dec 2010 |
| 18 | 0 | 23 Dec 2010 |
| 19 | 0 | 25 Dec 2010 |
| 20 | 0 | 27 Dec 2010 |
| 21 | 0 | 28 Dec 2010 |
| 22 | 0 | 29 Dec 2010 |
| 23 | 0 | 30 Dec 2010 |
| 24 | 0 | 31 Dec 2010 |
| 25 | 0 | 08 Dec 2011 |
Ranked daily data from 2009 to present for London, nw3. For Sun Anomaly, there are 527 valid values in Dec