| 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 | 44.1 | 5.9 | 1974-01-06 | 24 | 0 |
| February | 90.9 | 8.7 | 1974-02-17 | 14 | 3 |
| March | 173.5 | 10.8 | 1974-03-21 | 9 | 5 |
| April | 176.7 | 11.5 | 1974-04-08 | 11 | 5 |
| May | 187.5 | 13.8 | 1974-05-27 | 11 | 4 |
| June | 194.8 | 13.9 | 1974-06-03 | 9 | 3 |
| July | 265.0 | 13.7 | 1974-07-06 | 5 | 9 |
| August | 273.5 | 12.5 | 1974-08-04 | 3 | 7 |
| September | 198.8 | 11.3 | 1974-09-06 | 4 | 4 |
| October | 74.7 | 8.8 | 1974-10-19 | 20 | 1 |
| November | 99.4 | 7.7 | 1974-11-16 | 13 | 1 |
| December | 43.1 | 6.4 | 1974-12-06 | 21 | 0 |