| 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 |
| 1951. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 71.3 | 8.1 | 1951-01-22 | 18 | 3 |
| February | 115.0 | 9.1 | 1951-02-12 | 11 | 4 |
| March | 103.8 | 10.2 | 1951-03-22 | 16 | 1 |
| April | 220.4 | 13.4 | 1951-04-26 | 7 | 8 |
| May | 211.6 | 12.9 | 1951-05-19 | 7 | 2 |
| June | 270.5 | 14.5 | 1951-06-17 | 6 | 7 |
| July | 299.6 | 14.1 | 1951-07-15 | 1 | 13 |
| August | 313.8 | 13.7 | 1951-08-03 | 2 | 14 |
| September | 182.6 | 11.0 | 1951-09-12 | 7 | 7 |
| October | 141.4 | 10.0 | 1951-10-13 | 10 | 8 |
| November | 106.8 | 8.3 | 1951-11-03 | 11 | 3 |
| December | 84.3 | 8.1 | 1951-12-01 | 15 | 2 |