| 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 | 89.5 | 7.7 | 1938-01-25 | 14 | 1 |
| February | 138.7 | 9.6 | 1938-02-20 | 8 | 7 |
| March | 178.6 | 10.0 | 1938-03-14 | 7 | 5 |
| April | 164.8 | 10.7 | 1938-04-12 | 8 | 1 |
| May | 218.8 | 14.3 | 1938-05-14 | 9 | 8 |
| June | 339.6 | 15.0 | 1938-06-01 | 1 | 13 |
| July | 273.9 | 14.6 | 1938-07-02 | 6 | 8 |
| August | 218.5 | 13.2 | 1938-08-20 | 6 | 6 |
| September | 200.4 | 11.2 | 1938-09-16 | 5 | 5 |
| October | 142.8 | 8.9 | 1938-10-19 | 11 | 3 |
| November | 90.0 | 8.8 | 1938-11-07 | 13 | 4 |
| December | 38.2 | 7.6 | 1938-12-08 | 23 | 1 |