| 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 |
| 1998. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 93.0 | 8.0 | 1998-01-18 | 14 | 3 |
| February | 161.0 | 9.5 | 1998-02-28 | 5 | 8 |
| March | 205.0 | 10.4 | 1998-03-26 | 3 | 6 |
| April | 166.4 | 12.4 | 1998-04-27 | 8 | 4 |
| May | 250.2 | 13.1 | 1998-05-28 | 5 | 7 |
| June | 265.7 | 14.0 | 1998-06-07 | 4 | 6 |
| July | 286.6 | 13.1 | 1998-07-18 | 3 | 10 |
| August | 282.8 | 12.6 | 1998-08-09 | 3 | 14 |
| September | 159.1 | 11.2 | 1998-09-01 | 10 | 3 |
| October | 140.5 | 8.6 | 1998-10-31 | 11 | 1 |
| November | 76.8 | 8.0 | 1998-11-06 | 18 | 3 |
| December | 63.1 | 7.3 | 1998-12-22 | 19 | 2 |