| 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 | 68.3 | 7.8 | 1951-01-12 | 18 | 2 |
| February | 70.7 | 8.4 | 1951-02-12 | 16 | 2 |
| March | 87.8 | 10.1 | 1951-03-22 | 17 | 1 |
| April | 251.4 | 13.0 | 1951-04-24 | 3 | 11 |
| May | 179.3 | 13.1 | 1951-05-19 | 9 | 1 |
| June | 241.8 | 14.3 | 1951-06-15 | 7 | 5 |
| July | 267.0 | 14.2 | 1951-07-11 | 6 | 7 |
| August | 277.8 | 13.6 | 1951-08-12 | 3 | 10 |
| September | 157.4 | 10.5 | 1951-09-06 | 8 | 1 |
| October | 130.8 | 9.2 | 1951-10-14 | 9 | 4 |
| November | 93.4 | 8.0 | 1951-11-27 | 12 | 1 |
| December | 66.7 | 7.2 | 1951-12-01 | 18 | 2 |