| 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 |
| 2009. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 35.3 | 6.5 | 2009-01-08 | 25 | 0 |
| February | 82.3 | 9.5 | 2009-02-20 | 14 | 2 |
| March | 114.4 | 10.8 | 2009-03-21 | 15 | 3 |
| April | 316.4 | 13.2 | 2009-04-21 | 1 | 18 |
| May | 293.2 | 14.2 | 2009-05-26 | 4 | 10 |
| June | 265.8 | 15.1 | 2009-06-14 | 4 | 7 |
| July | 347.9 | 14.5 | 2009-07-14 | 1 | 15 |
| August | 286.6 | 13.6 | 2009-08-08 | 4 | 12 |
| September | 266.5 | 12.7 | 2009-09-06 | 1 | 12 |
| October | 110.8 | 10.7 | 2009-10-05 | 17 | 6 |
| November | 65.7 | 9.1 | 2009-11-01 | 19 | 1 |
| December | 34.5 | 7.9 | 2009-12-29 | 24 | 1 |