| Description of elements in the header | |
|---|---|
| m_ss | amount of monthly sunshine duration |
| m_sx | the maximum sunshine duration in the month |
| m_sxd | the day with the maximum sunshine duration |
| m_dsf20 | number of days when the sunshine duration is less than 20 % of the astronomic sunshine duration |
| m_dsf80 | number of days when the sunshine duration is more than 80 % of the astronomic sunshine duration |
| 1928. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 60.6 | 7.6 | 1928-01-17 | 18 | 1 |
| February | 91.0 | 9.5 | 1928-02-25 | 15 | 3 |
| March | 179.1 | 10.2 | 1928-03-26 | 10 | 10 |
| April | 171.7 | 12.3 | 1928-04-28 | 11 | 5 |
| May | 254.5 | 13.7 | 1928-05-10 | 7 | 8 |
| June | 285.4 | 14.9 | 1928-06-13 | 3 | 11 |
| July | 379.8 | 14.8 | 1928-07-09 | 0 | 19 |
| August | 279.7 | 12.3 | 1928-08-01 | 1 | 12 |
| September | 185.5 | 11.3 | 1928-09-10 | 7 | 6 |
| October | 169.9 | 9.3 | 1928-10-06 | 9 | 7 |
| November | 82.1 | 7.4 | 1928-11-05 | 17 | 0 |
| December | 17.6 | 4.7 | 1928-12-19 | 27 | 0 |