| 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 | 74.6 | 7.8 | 1978-01-01 | 17 | 2 |
| February | 68.6 | 8.9 | 1978-02-21 | 14 | 1 |
| March | 161.1 | 11.5 | 1978-03-29 | 9 | 6 |
| April | 155.3 | 10.8 | 1978-04-07 | 10 | 3 |
| May | 177.4 | 12.1 | 1978-05-17 | 7 | 1 |
| June | 264.3 | 14.8 | 1978-06-30 | 5 | 8 |
| July | 303.6 | 14.1 | 1978-07-24 | 3 | 12 |
| August | 268.0 | 13.4 | 1978-08-05 | 5 | 11 |
| September | 193.6 | 11.3 | 1978-09-11 | 9 | 8 |
| October | 167.9 | 10.1 | 1978-10-13 | 8 | 9 |
| November | 16.5 | 6.4 | 1978-11-01 | 26 | 0 |
| December | 43.2 | 7.4 | 1978-12-06 | 23 | 2 |