| 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 |
| 1938. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 101.2 | 7.4 | 1938-01-12 | 11 | 2 |
| February | 154.1 | 10.0 | 1938-02-20 | 6 | 9 |
| March | 191.1 | 10.1 | 1938-03-16 | 7 | 6 |
| April | 188.0 | 11.2 | 1938-04-12 | 6 | 5 |
| May | 238.1 | 14.3 | 1938-05-15 | 7 | 7 |
| June | 363.6 | 15.0 | 1938-06-29 | 0 | 15 |
| July | 321.6 | 15.2 | 1938-07-02 | 3 | 13 |
| August | 247.5 | 13.6 | 1938-08-21 | 8 | 12 |
| September | 222.3 | 11.1 | 1938-09-09 | 5 | 8 |
| October | 157.1 | 9.9 | 1938-10-15 | 11 | 7 |
| November | 97.2 | 8.2 | 1938-11-24 | 14 | 4 |
| December | 39.5 | 7.2 | 1938-12-11 | 24 | 1 |