Data Tables
Daily MonthlyRankings
Daily MonthlyReports
Daily Monthly Annual Charts⚙︎ Site units
| Top monthly total | ||
| Rank | Value | Date |
| 1 | 185 | Jan 2010 |
| 2 | 132 | Jan 2013 |
| 3 | 77 | Jan 2026 |
| 4 | 24 | Jan 2012 |
| Bottom monthly total | ||
| Rank | Value | Date |
| 1 | 0 | Jan 2009 |
| 2 | 14 | Jan 2011 |
| 3 | 24 | Jan 2012 |
| 4 | 77 | Jan 2026 |
Air-frost Hrs monthly extremes: highest and lowest monthly totals.
There are 6 valid months for the chosen period from 2009 to present for Jan in London, NW3.
| Top monthly count | ||
| Rank | Value | Date |
| 1 | 31 | Jan 2026 |
| 2 | 31 | Jan 2013 |
| 3 | 31 | Jan 2012 |
| 4 | 31 | Jan 2011 |
| Bottom monthly count | ||
| Rank | Value | Date |
| 1 | 0 | Jan 2009 |
| 2 | 31 | Jan 2010 |
| 3 | 31 | Jan 2011 |
| 4 | 31 | Jan 2012 |
Air-frost Hrs monthly extremes: most and fewest days with a value.
There are 6 valid months for the chosen period from 2009 to present for Jan in London, NW3.
| Top monthly lowest | ||
| Rank | Value | Date |
| 1 | 0 | Jan 2026 |
| 2 | 0 | Jan 2013 |
| 3 | 0 | Jan 2012 |
| Bottom monthly lowest | ||
| Rank | Value | Date |
| 1 | 0 | Jan 2010 |
| 2 | 0 | Jan 2011 |
| 3 | 0 | Jan 2012 |
Air-frost Hrs monthly extremes: highest and lowest monthly minima.
There are 5 valid months for the chosen period from 2009 to present for Jan in London, NW3.
| Top monthly highest | ||
| Rank | Value | Date |
| 1 | 24 | Jan 2013 |
| 2 | 22 | Jan 2010 |
| 3 | 18 | Jan 2026 |
| Bottom monthly highest | ||
| Rank | Value | Date |
| 1 | 5 | Jan 2011 |
| 2 | 10 | Jan 2012 |
| 3 | 18 | Jan 2026 |
Air-frost Hrs monthly extremes: highest and lowest monthly maxima.
There are 5 valid months for the chosen period from 2009 to present for Jan in London, NW3.