| 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 | 86.9 | 8.2 | 1938-01-31 | 14 | 2 |
| February | 139.4 | 9.7 | 1938-02-24 | 7 | 6 |
| March | 201.7 | 10.1 | 1938-03-15 | 5 | 5 |
| April | 181.0 | 12.3 | 1938-04-16 | 7 | 2 |
| May | 251.8 | 14.2 | 1938-05-14 | 7 | 9 |
| June | 287.4 | 14.4 | 1938-06-08 | 4 | 11 |
| July | 271.7 | 14.6 | 1938-07-08 | 4 | 5 |
| August | 194.4 | 13.3 | 1938-08-04 | 9 | 4 |
| September | 187.2 | 10.5 | 1938-09-09 | 6 | 5 |
| October | 119.2 | 9.3 | 1938-10-10 | 11 | 2 |
| November | 68.7 | 8.4 | 1938-11-07 | 20 | 5 |
| December | 48.5 | 7.1 | 1938-12-27 | 22 | 2 |