| 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 | 17.0 | 6.1 | 1988-01-20 | 28 | 0 |
| February | 53.4 | 9.2 | 1988-02-21 | 22 | 3 |
| March | 102.2 | 10.3 | 1988-03-30 | 13 | 1 |
| April | 198.9 | 12.0 | 1988-04-12 | 7 | 3 |
| May | 256.2 | 13.7 | 1988-05-09 | 5 | 9 |
| June | 214.6 | 14.3 | 1988-06-04 | 4 | 1 |
| July | 274.6 | 14.6 | 1988-07-11 | 1 | 7 |
| August | 274.6 | 13.0 | 1988-08-14 | 5 | 13 |
| September | 173.8 | 11.5 | 1988-09-09 | 9 | 3 |
| October | 211.4 | 10.2 | 1988-10-03 | 3 | 10 |
| November | 103.8 | 9.0 | 1988-11-04 | 11 | 4 |
| December | 54.1 | 7.2 | 1988-12-25 | 21 | 2 |