Daily Data Tables - Sun Hours / hrs
Weather Variable:
| Day | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 1 | 0 | 2 | 8 | 9 | 0.4 | 6 | 4 | 10 | 11 | 2 | 4 | 0 |
| 2 | 0.9 | 0 | 4 | 9 | 0 | 4 | 6 | 3 | 0.5 | 5 | 3 | 0 |
| 3 | 0 | 2 | 8 | 10 | 10 | 13 | 4 | 11 | 12 | 8 | 0.4 | 0 |
| 4 | 0.3 | 5 | 7 | 3 | 9 | 2 | 6 | 5 | 1 | 3 | 6 | 0 |
| 5 | 0 | 0 | 9 | 0.3 | 2 | 0 | 4 | 1 | 0 | 6 | 7 | 0.5 |
| 6 | 0 | 0 | 0.9 | 0.4 | 10 | 6 | 2 | 5 | 0.1 | 4 | 0 | 0 |
| 7 | 0 | 0.9 | 5 | 0 | 11 | 3 | 2 | 3 | 0.6 | 8 | 3 | 0 |
| 8 | 0 | 2 | 0 | 1 | 5 | 9 | 0 | 0.2 | 6 | 0.5 | 3 | 0 |
| 9 | 0 | 8 | 0 | 7 | 4 | 8 | 0 | 0.3 | 3 | 0 | 5 | 0 |
| 10 | 3 | 0.9 | 4 | 0 | 13 | 0 | 0.1 | 13 | 6 | 3 | 4 | 0 |
| 11 | 5 | 2 | 0.5 | 9 | 6 | 0.5 | 6 | 7 | 3 | 1 | 2 | 0.1 |
| 12 | 4 | 6 | 0 | 0.8 | 10 | 0.9 | 4 | 3 | 2 | 0 | 3 | 0 |
| 13 | 5 | 1 | 8 | 1 | 4 | 1 | 7 | 0 | 11 | 0 | 0 | 0.1 |
| 14 | 2 | 4 | 9 | 0.1 | 10 | 14 | 8 | 4 | 0.5 | 0.3 | 5 | 0.3 |
| 15 | 0 | 8 | 7 | 6 | 9 | 9 | 2 | 10 | 0 | 1 | 1 | 1 |
| 16 | 0 | 7 | 9 | 1 | 10 | 12 | 6 | 7 | 3 | 2 | 8 | 0.6 |
| 17 | 3 | 4 | 5 | 4 | 1 | 6 | 1 | 2 | 2 | 0.8 | 3 | 0 |
| 18 | 0 | 1 | 4 | 0 | 9 | 9 | 0 | 7 | 8 | 2 | 3 | 5 |
| 19 | 1 | 0 | 3 | 0.1 | 4 | 14 | 8 | 10 | 7 | 2 | 5 | 0 |
| 20 | 0.1 | 0.9 | 9 | 0 | 13 | 14 | 0.2 | 2 | 9 | 4 | 2 | 0 |
| 21 | 7 | 0 | 1 | 3 | 0.8 | 7 | 2 | 8 | 8 | 0.5 | 6 | 0 |
| 22 | 6 | 0 | 10 | 2 | 9 | 4 | 1 | 3 | 9 | 0 | 4 | 4 |
| 23 | 0 | 4 | 6 | 0 | 14 | 6 | 5 | 4 | 10 | 1 | 0 | 1 |
| 24 | 0.8 | 3 | 0 | 4 | 11 | 3 | 3 | 6 | 7 | 0.5 | 0 | 0.1 |
| 25 | 5 | 1 | 4 | 6 | 5 | 2 | 4 | 0.9 | 0.3 | 0 | 0 | 5 |
| 26 | 7 | 7 | 0.3 | 9 | 9 | 3 | 1 | 4 | 2 | 2 | 0 | 0 |
| 27 | 7 | 6 | 5 | 10 | 2 | 2 | 1 | 7 | 10 | 0 | 0 | 2 |
| 28 | 4 | 0 | 1 | 3 | 9 | 7 | 7 | 0 | 9 | 2 | 0.2 | 1 |
| 29 | 2 | 6 | 10 | 2 | 8 | 5 | 4 | 2 | 0 | 2 | 3 | |
| 30 | 8 | 5 | 2 | 10 | 6 | 2 | 3 | 6 | 0 | 0 | 0 | |
| 31 | 0.5 | 10 | 0.6 | 7 | 3 | 2 | 0 | |||||
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| High | 8 | 8 | 10 | 10 | 14 | 14 | 8 | 13 | 12 | 8 | 8 | 5 |
| Mean | 72 (104%) |
76 (97%) |
149 (132%) |
111 (69%) |
213 (113%) |
179 (92%) |
108 (56%) |
146 (79%) |
149 (101%) |
61 (51%) |
80 (95%) |
24 (36%) |
| Count | 20 | 21 | 27 | 25 | 30 | 28 | 28 | 29 | 28 | 23 | 22 | 14 |
| Cumu- lative |
72 (104%) |
147 (100%) |
296 (114%) |
407 (97%) |
620 (102%) |
799 (99%) |
907 (91%) |
1054 (89%) |
1203 (90%) |
1263 (87%) |
1343 (88%) |
1366 (86%) |
Sun Hours in London, nw3, for every available day of 1910 along with monthly summary:
lowest, highest, total, count (values > 0), and the cumulative value for the year to the month's end.
Figures in brackets refer to departure from recent
average conditions.
*Data from before 2009 are mostly from the historical site at Whitestone Pond in Hampstead. Where data from that record is missing, other nearby sites were used, including St James Park, Heathrow, and Kew Gardens (pre-1910). Best efforts have been made to adjust for site differences, but uncertainties are somewhat greater for this data. I am grateful to the Met Office for making this data available for free through the MIDAS Open database.