| 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 | 56.2 | 7.7 | 1966-01-06 | 20 | 1 |
| February | 130.6 | 8.8 | 1966-02-27 | 8 | 3 |
| March | 144.9 | 10.2 | 1966-03-21 | 11 | 3 |
| April | 196.2 | 12.2 | 1966-04-14 | 5 | 6 |
| May | 283.2 | 14.0 | 1966-05-13 | 6 | 13 |
| June | 252.7 | 14.8 | 1966-06-23 | 6 | 7 |
| July | 269.8 | 14.4 | 1966-07-13 | 4 | 10 |
| August | 268.7 | 13.2 | 1966-08-10 | 4 | 12 |
| September | 250.9 | 11.9 | 1966-09-08 | 0 | 8 |
| October | 173.6 | 10.0 | 1966-10-05 | 9 | 9 |
| November | 49.4 | 7.7 | 1966-11-09 | 20 | 0 |
| December | 52.0 | 7.1 | 1966-12-31 | 19 | 1 |