| 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 | 58.7 | 6.9 | 1983-01-18 | 17 | 0 |
| February | 85.8 | 8.4 | 1983-02-23 | 14 | 0 |
| March | 154.2 | 10.4 | 1983-03-14 | 11 | 5 |
| April | 189.7 | 11.4 | 1983-04-25 | 5 | 1 |
| May | 276.0 | 13.1 | 1983-05-17 | 4 | 9 |
| June | 205.2 | 14.0 | 1983-06-09 | 10 | 3 |
| July | 285.3 | 12.9 | 1983-07-06 | 2 | 5 |
| August | 251.7 | 13.1 | 1983-08-01 | 4 | 6 |
| September | 220.9 | 11.7 | 1983-09-02 | 6 | 11 |
| October | 182.3 | 9.6 | 1983-10-14 | 6 | 11 |
| November | 111.2 | 7.9 | 1983-11-13 | 12 | 3 |
| December | 49.5 | 6.5 | 1983-12-29 | 20 | 0 |