| 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 | 56.4 | 8.3 | 1958-01-28 | 22 | 3 |
| February | 44.5 | 9.6 | 1958-02-23 | 21 | 1 |
| March | 114.6 | 9.6 | 1958-03-05 | 13 | 1 |
| April | 114.6 | 9.6 | 1958-04-05 | 15 | 0 |
| May | 331.0 | 14.0 | 1958-05-27 | 0 | 15 |
| June | 230.1 | 15.3 | 1958-06-08 | 8 | 9 |
| July | 337.9 | 14.5 | 1958-07-15 | 0 | 13 |
| August | 291.0 | 13.9 | 1958-08-05 | 3 | 14 |
| September | 230.6 | 12.4 | 1958-09-03 | 4 | 10 |
| October | 143.6 | 9.3 | 1958-10-06 | 8 | 4 |
| November | 67.9 | 8.4 | 1958-11-18 | 16 | 1 |
| December | 55.5 | 6.9 | 1958-12-16 | 19 | 2 |