| 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 | 70.5 | 8.0 | 1963-01-22 | 19 | 4 |
| February | 74.6 | 10.1 | 1963-02-28 | 19 | 6 |
| March | 152.6 | 10.5 | 1963-03-17 | 9 | 4 |
| April | 230.3 | 12.2 | 1963-04-26 | 5 | 8 |
| May | 282.0 | 14.9 | 1963-05-29 | 5 | 11 |
| June | 287.9 | 15.0 | 1963-06-18 | 3 | 9 |
| July | 354.3 | 14.8 | 1963-07-06 | 3 | 19 |
| August | 277.5 | 13.4 | 1963-08-03 | 6 | 13 |
| September | 202.5 | 11.0 | 1963-09-03 | 7 | 3 |
| October | 156.8 | 9.5 | 1963-10-16 | 8 | 5 |
| November | 105.5 | 8.0 | 1963-11-30 | 11 | 3 |
| December | 63.3 | 8.0 | 1963-12-01 | 18 | 1 |