| 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 |
| 1983. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 37.0 | 5.7 | 1983-01-18 | 23 | 0 |
| February | 87.8 | 8.4 | 1983-02-26 | 13 | 0 |
| March | 145.8 | 9.7 | 1983-03-14 | 8 | 4 |
| April | 162.7 | 11.1 | 1983-04-17 | 8 | 1 |
| May | 248.7 | 12.0 | 1983-05-28 | 3 | 0 |
| June | 224.5 | 13.4 | 1983-06-07 | 8 | 4 |
| July | 257.5 | 12.1 | 1983-07-07 | 3 | 0 |
| August | 247.2 | 12.0 | 1983-08-01 | 6 | 7 |
| September | 207.1 | 11.0 | 1983-09-02 | 6 | 7 |
| October | 148.8 | 10.4 | 1983-10-02 | 10 | 2 |
| November | 76.8 | 7.8 | 1983-11-03 | 17 | 0 |
| December | 60.0 | 5.7 | 1983-12-02 | 16 | 0 |