| 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 |
| 2004. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 83.4 | 8.2 | 2004-01-23 | 15 | 3 |
| February | 79.0 | 8.9 | 2004-02-09 | 14 | 1 |
| March | 120.3 | 10.1 | 2004-03-18 | 15 | 2 |
| April | 143.1 | 12.2 | 2004-04-28 | 12 | 2 |
| May | 211.8 | 13.3 | 2004-05-30 | 8 | 4 |
| June | 189.0 | 14.1 | 2004-06-14 | 8 | 2 |
| July | 232.7 | 13.7 | 2004-07-31 | 5 | 3 |
| August | 270.2 | 12.8 | 2004-08-19 | 4 | 10 |
| September | 199.1 | 11.6 | 2004-09-09 | 6 | 7 |
| October | 104.6 | 9.1 | 2004-10-04 | 10 | 1 |
| November | 59.0 | 7.8 | 2004-11-24 | 20 | 3 |
| December | 51.0 | 7.4 | 2004-12-20 | 20 | 1 |