| 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 |
| 1972. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 16.1 | 6.1 | 1972-01-13 | 28 | 0 |
| February | 32.6 | 8.4 | 1972-02-18 | 23 | 1 |
| March | 180.2 | 11.3 | 1972-03-25 | 10 | 10 |
| April | 119.6 | 12.6 | 1972-04-30 | 16 | 3 |
| May | 176.3 | 11.9 | 1972-05-23 | 9 | 0 |
| June | 250.2 | 13.7 | 1972-06-15 | 5 | 5 |
| July | 196.1 | 14.6 | 1972-07-02 | 7 | 2 |
| August | 200.6 | 12.0 | 1972-08-10 | 9 | 3 |
| September | 153.1 | 9.9 | 1972-09-04 | 10 | 0 |
| October | 150.4 | 9.4 | 1972-10-17 | 8 | 3 |
| November | 105.0 | 7.9 | 1972-11-07 | 11 | 1 |
| December | 47.3 | 6.9 | 1972-12-06 | 21 | 0 |