| 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 | 70.5 | 6.9 | 1928-01-23 | 17 | 0 |
| February | 140.9 | 10.1 | 1928-02-21 | 8 | 9 |
| March | 144.5 | 9.6 | 1928-03-24 | 10 | 2 |
| April | 166.0 | 11.5 | 1928-04-09 | 8 | 1 |
| May | 206.0 | 13.0 | 1928-05-22 | 6 | 3 |
| June | 301.4 | 14.8 | 1928-06-13 | 2 | 10 |
| July | 371.6 | 14.6 | 1928-07-15 | 0 | 17 |
| August | 318.2 | 13.6 | 1928-08-03 | 2 | 20 |
| September | 181.5 | 11.5 | 1928-09-05 | 8 | 6 |
| October | 175.0 | 8.9 | 1928-10-06 | 6 | 5 |
| November | 85.4 | 8.5 | 1928-11-07 | 15 | 2 |
| December | 25.7 | 4.8 | 1928-12-11 | 25 | 0 |