| 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 |
| 1933. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 30.3 | 7.8 | 1933-01-30 | 26 | 1 |
| February | 86.7 | 9.3 | 1933-02-17 | 17 | 2 |
| March | 144.6 | 10.9 | 1933-03-30 | 11 | 3 |
| April | 153.5 | 12.6 | 1933-04-28 | 12 | 4 |
| May | 209.1 | 14.0 | 1933-05-29 | 9 | 5 |
| June | 282.7 | 14.7 | 1933-06-04 | 1 | 7 |
| July | 343.7 | 14.6 | 1933-07-09 | 0 | 17 |
| August | 313.6 | 13.6 | 1933-08-07 | 3 | 19 |
| September | 205.2 | 11.5 | 1933-09-07 | 4 | 7 |
| October | 144.1 | 9.4 | 1933-10-02 | 10 | 7 |
| November | 82.8 | 8.4 | 1933-11-19 | 16 | 3 |
| December | 41.2 | 7.6 | 1933-12-21 | 23 | 1 |