| 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 |
| 1970. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 34.7 | 6.9 | 1970-01-29 | 25 | 0 |
| February | 50.5 | 7.6 | 1970-02-06 | 20 | 0 |
| March | 86.1 | 9.7 | 1970-03-30 | 19 | 0 |
| April | 158.9 | 10.6 | 1970-04-23 | 9 | 0 |
| May | 162.9 | 13.6 | 1970-05-25 | 12 | 1 |
| June | 252.1 | 14.3 | 1970-06-20 | 5 | 4 |
| July | 262.0 | 13.5 | 1970-07-26 | 6 | 10 |
| August | 236.6 | 12.3 | 1970-08-18 | 5 | 3 |
| September | 186.7 | 10.8 | 1970-09-14 | 5 | 5 |
| October | 144.0 | 9.5 | 1970-10-07 | 10 | 6 |
| November | 90.9 | 8.0 | 1970-11-12 | 13 | 2 |
| December | 36.0 | 5.0 | 1970-12-05 | 21 | 0 |