| 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 |
| 1988. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 60.5 | 7.6 | 1988-01-31 | 19 | 2 |
| February | 105.5 | 9.4 | 1988-02-21 | 12 | 3 |
| March | 118.4 | 11.2 | 1988-03-29 | 15 | 3 |
| April | 200.5 | 13.0 | 1988-04-16 | 10 | 9 |
| May | 210.3 | 13.3 | 1988-05-12 | 7 | 4 |
| June | 254.4 | 14.3 | 1988-06-17 | 5 | 6 |
| July | 299.4 | 14.1 | 1988-07-26 | 4 | 13 |
| August | 278.5 | 13.7 | 1988-08-01 | 4 | 10 |
| September | 148.0 | 11.0 | 1988-09-08 | 12 | 6 |
| October | 126.3 | 9.6 | 1988-10-04 | 11 | 2 |
| November | 107.8 | 8.1 | 1988-11-05 | 12 | 2 |
| December | 97.1 | 7.3 | 1988-12-25 | 13 | 3 |