| 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 |
| 1920. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | |||||
| February | |||||
| March | |||||
| April | |||||
| May | |||||
| June | |||||
| July | |||||
| August | |||||
| September | |||||
| October | 170.9 | 9.6 | 1920-10-07 | 9 | 10 |
| November | 67.1 | 8.9 | 1920-11-01 | 18 | 2 |
| December | 19.5 | 5.4 | 1920-12-19 | 26 | 0 |