| 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 |
| 1978. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 82.7 | 7.6 | 1978-01-21 | 11 | 2 |
| February | 62.4 | 8.2 | 1978-02-21 | 18 | 0 |
| March | 165.6 | 11.2 | 1978-03-30 | 9 | 5 |
| April | 177.1 | 11.9 | 1978-04-07 | 11 | 4 |
| May | 166.7 | 13.8 | 1978-05-31 | 11 | 2 |
| June | 222.6 | 14.8 | 1978-06-01 | 7 | 7 |
| July | 263.8 | 14.2 | 1978-07-06 | 3 | 7 |
| August | 245.8 | 12.5 | 1978-08-02 | 4 | 2 |
| September | 131.9 | 10.0 | 1978-09-13 | 11 | 0 |
| October | 149.7 | 9.6 | 1978-10-09 | 8 | 5 |
| November | 2.5 | 1.3 | 1978-11-29 | 30 | 0 |
| December | 34.6 | 6.6 | 1978-12-05 | 24 | 0 |