| 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 |
| 1991. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 75.3 | 8.0 | 1991-01-31 | 19 | 3 |
| February | |||||
| March | |||||
| April | |||||
| May | |||||
| June | |||||
| July | |||||
| August | |||||
| September | 220.5 | 11.5 | 1991-09-02 | 4 | 10 |
| October | 137.2 | 10.0 | 1991-10-04 | 12 | 6 |
| November | 55.0 | 6.4 | 1991-11-14 | 17 | 0 |
| December | 51.1 | 5.9 | 1991-12-01 | 19 | 0 |