| 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 |
| 1966. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 45.6 | 7.4 | 1966-01-06 | 22 | 1 |
| February | 98.2 | 7.9 | 1966-02-25 | 10 | 0 |
| March | 151.1 | 11.1 | 1966-03-31 | 10 | 3 |
| April | 189.4 | 12.3 | 1966-04-14 | 7 | 5 |
| May | 298.8 | 14.4 | 1966-05-31 | 4 | 17 |
| June | 272.4 | 14.5 | 1966-06-22 | 4 | 9 |
| July | 295.9 | 14.2 | 1966-07-14 | 3 | 10 |
| August | 300.7 | 13.3 | 1966-08-07 | 3 | 16 |
| September | 240.4 | 11.4 | 1966-09-08 | 0 | 6 |
| October | 179.0 | 10.0 | 1966-10-02 | 8 | 8 |
| November | 62.6 | 8.6 | 1966-11-04 | 20 | 2 |
| December | 46.4 | 7.0 | 1966-12-04 | 22 | 0 |