| 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 |
| 1937. | m_ss | m_sx | m_sxd | m_dsf20 | m_dsf80 |
|---|---|---|---|---|---|
| January | 78.9 | 8.0 | 1937-01-14 | 16 | 2 |
| February | 55.2 | 8.7 | 1937-02-19 | 17 | 1 |
| March | 105.5 | 9.2 | 1937-03-22 | 15 | 0 |
| April | 157.4 | 12.0 | 1937-04-23 | 9 | 3 |
| May | 332.6 | 14.0 | 1937-05-30 | 1 | 14 |
| June | 308.5 | 15.4 | 1937-06-07 | 0 | 11 |
| July | 273.6 | 14.3 | 1937-07-03 | 4 | 7 |
| August | 213.2 | 13.1 | 1937-08-03 | 8 | 3 |
| September | 224.8 | 11.1 | 1937-09-03 | 3 | 3 |
| October | 183.2 | 9.3 | 1937-10-06 | 5 | 11 |
| November | 47.9 | 9.0 | 1937-11-01 | 23 | 1 |
| December | 43.9 | 7.1 | 1937-12-28 | 24 | 2 |