| 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 | 47.1 | 7.2 | 1937-01-10 | 22 | 1 |
| February | 58.3 | 6.9 | 1937-02-16 | 18 | 0 |
| March | 77.3 | 8.1 | 1937-03-08 | 18 | 0 |
| April | 77.8 | 8.7 | 1937-04-29 | 21 | 0 |
| May | 233.0 | 13.9 | 1937-05-30 | 8 | 7 |
| June | 215.0 | 13.7 | 1937-06-10 | 7 | 2 |
| July | 233.5 | 13.4 | 1937-07-20 | 4 | 2 |
| August | 230.4 | 13.6 | 1937-08-08 | 7 | 7 |
| September | 172.2 | 10.7 | 1937-09-03 | 6 | 1 |
| October | 138.6 | 9.3 | 1937-10-27 | 10 | 7 |
| November | 41.6 | 7.5 | 1937-11-28 | 23 | 1 |
| December | 47.6 | 6.6 | 1937-12-29 | 21 | 0 |