| 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 |
| 1968. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 52.0 | 7.3 | 1968-01-17 | 21 | 1 |
| February | 63.8 | 9.2 | 1968-02-19 | 19 | 2 |
| March | 189.3 | 11.2 | 1968-03-24 | 5 | 7 |
| April | 242.6 | 13.3 | 1968-04-24 | 4 | 9 |
| May | 226.8 | 13.7 | 1968-05-09 | 8 | 5 |
| June | 288.6 | 14.0 | 1968-06-05 | 1 | 7 |
| July | 289.4 | 13.6 | 1968-07-01 | 2 | 9 |
| August | 221.1 | 13.3 | 1968-08-17 | 4 | 7 |
| September | 169.1 | 11.4 | 1968-09-02 | 8 | 5 |
| October | 167.3 | 9.6 | 1968-10-21 | 8 | 8 |
| November | 47.8 | 7.9 | 1968-11-01 | 23 | 1 |
| December | 20.5 | 6.2 | 1968-12-21 | 28 | 0 |