| 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 |
| 1967. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 73.0 | 8.4 | 1967-01-31 | 19 | 4 |
| February | 113.0 | 9.2 | 1967-02-15 | 13 | 8 |
| March | 164.3 | 9.5 | 1967-03-27 | 8 | 2 |
| April | 168.5 | 13.0 | 1967-04-21 | 12 | 6 |
| May | 245.1 | 14.2 | 1967-05-12 | 10 | 12 |
| June | 323.3 | 15.0 | 1967-06-19 | 3 | 16 |
| July | 376.1 | 14.7 | 1967-07-12 | 2 | 21 |
| August | 293.3 | 13.4 | 1967-08-01 | 3 | 11 |
| September | 205.7 | 11.7 | 1967-09-06 | 6 | 9 |
| October | 185.3 | 10.4 | 1967-10-02 | 5 | 8 |
| November | 106.5 | 8.5 | 1967-11-25 | 12 | 6 |
| December | 40.4 | 6.1 | 1967-12-01 | 22 | 0 |