| 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 |
| 1958. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 68.7 | 8.3 | 1958-01-30 | 19 | 1 |
| February | 81.1 | 9.7 | 1958-02-23 | 14 | 2 |
| March | 150.2 | 10.5 | 1958-03-06 | 11 | 3 |
| April | 186.8 | 13.1 | 1958-04-25 | 9 | 3 |
| May | 320.9 | 14.5 | 1958-05-25 | 1 | 13 |
| June | 237.1 | 14.7 | 1958-06-17 | 9 | 9 |
| July | 333.8 | 14.5 | 1958-07-14 | 1 | 13 |
| August | 322.3 | 14.0 | 1958-08-01 | 2 | 19 |
| September | 239.4 | 11.3 | 1958-09-06 | 3 | 10 |
| October | 145.5 | 9.7 | 1958-10-04 | 8 | 5 |
| November | 24.4 | 8.3 | 1958-11-06 | 24 | 1 |
| December | 92.7 | 7.7 | 1958-12-04 | 14 | 3 |