| 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 |
| 1974. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 33.0 | 6.8 | 1974-01-13 | 24 | 0 |
| February | 99.9 | 9.6 | 1974-02-28 | 14 | 4 |
| March | 208.7 | 10.6 | 1974-03-21 | 3 | 8 |
| April | 178.6 | 11.5 | 1974-04-08 | 9 | 6 |
| May | 176.6 | 14.1 | 1974-05-19 | 11 | 2 |
| June | 199.7 | 13.6 | 1974-06-03 | 9 | 3 |
| July | 258.8 | 13.6 | 1974-07-06 | 7 | 7 |
| August | 259.8 | 12.1 | 1974-08-08 | 3 | 3 |
| September | 204.3 | 11.0 | 1974-09-06 | 6 | 6 |
| October | 58.7 | 8.9 | 1974-10-11 | 22 | 1 |
| November | 82.1 | 7.8 | 1974-11-16 | 16 | 2 |
| December | 39.3 | 7.4 | 1974-12-31 | 24 | 1 |