| 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 |
| 1929. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 74.3 | 7.3 | 1929-01-10 | 18 | 1 |
| February | 81.9 | 8.6 | 1929-02-10 | 14 | 2 |
| March | 179.1 | 10.0 | 1929-03-17 | 8 | 1 |
| April | 164.0 | 12.0 | 1929-04-20 | 11 | 3 |
| May | 248.9 | 13.1 | 1929-05-07 | 6 | 7 |
| June | 239.3 | 13.8 | 1929-06-13 | 5 | 6 |
| July | 327.9 | 13.9 | 1929-07-03 | 2 | 17 |
| August | 281.2 | 13.1 | 1929-08-01 | 3 | 13 |
| September | 243.9 | 11.2 | 1929-09-02 | 1 | 9 |
| October | 174.2 | 10.0 | 1929-10-13 | 5 | 7 |
| November | 76.6 | 8.3 | 1929-11-02 | 15 | 3 |
| December | 58.7 | 7.3 | 1929-12-05 | 20 | 3 |