| 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 | 92.5 | 8.3 | 1967-01-16 | 14 | 3 |
| February | 130.3 | 9.3 | 1967-02-24 | 10 | 6 |
| March | 166.0 | 10.7 | 1967-03-26 | 8 | 5 |
| April | 199.8 | 13.1 | 1967-04-17 | 9 | 8 |
| May | 256.1 | 14.3 | 1967-05-06 | 5 | 7 |
| June | 281.1 | 14.9 | 1967-06-23 | 4 | 9 |
| July | 291.0 | 14.2 | 1967-07-19 | 3 | 10 |
| August | 238.2 | 13.3 | 1967-08-09 | 5 | 5 |
| September | 167.1 | 12.0 | 1967-09-03 | 10 | 6 |
| October | 155.3 | 10.1 | 1967-10-19 | 7 | 7 |
| November | 104.4 | 8.5 | 1967-11-20 | 12 | 4 |
| December | 87.1 | 7.4 | 1967-12-01 | 15 | 4 |