| 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 |
| 1963. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 48.9 | 7.4 | 1963-01-23 | 23 | 2 |
| February | 70.6 | 9.8 | 1963-02-28 | 17 | 1 |
| March | 138.9 | 11.4 | 1963-03-25 | 14 | 6 |
| April | 188.6 | 13.1 | 1963-04-28 | 8 | 5 |
| May | 258.5 | 13.8 | 1963-05-26 | 4 | 6 |
| June | 256.7 | 14.4 | 1963-06-28 | 5 | 5 |
| July | 290.5 | 14.4 | 1963-07-15 | 3 | 9 |
| August | 223.7 | 13.3 | 1963-08-11 | 5 | 3 |
| September | 177.5 | 10.5 | 1963-09-16 | 6 | 3 |
| October | 124.3 | 9.8 | 1963-10-09 | 14 | 5 |
| November | 85.9 | 7.9 | 1963-11-21 | 13 | 1 |
| December | 54.8 | 5.9 | 1963-12-09 | 19 | 0 |