| 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 | 28.0 | 4.6 | 1970-01-28 | 24 | 0 |
| February | 62.0 | 7.7 | 1970-02-17 | 19 | 0 |
| March | 111.2 | 9.5 | 1970-03-20 | 15 | 0 |
| April | 116.3 | 10.3 | 1970-04-19 | 15 | 0 |
| May | 210.9 | 13.9 | 1970-05-25 | 9 | 4 |
| June | 206.5 | 14.3 | 1970-06-21 | 5 | 3 |
| July | 243.0 | 13.4 | 1970-07-29 | 8 | 6 |
| August | 212.7 | 13.1 | 1970-08-18 | 7 | 6 |
| September | 198.3 | 11.0 | 1970-09-27 | 5 | 6 |
| October | 131.9 | 10.6 | 1970-10-06 | 12 | 3 |
| November | 77.4 | 7.4 | 1970-11-06 | 13 | 1 |
| December | 53.0 | 7.7 | 1970-12-04 | 19 | 1 |