| January (%) | April (%) | July (%) | October (%) |
3 days ago | 15 | 13 | 41 | 38 |
2 days ago | 0 | 35 | 18 | 37 |
1 day ago | 10 | 18 | 12 | 41 |
Mean solar radiation day | 13 | 35 | 38 | 21 |
1 day after | 9 | 31 | 19 | 0 |
2 days after | 15 | 47 | 0 | 33 |
3 days after | 15 | 49 | 14 | 40 |