| 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 | 61.4 | 8.0 | 1937-01-05 | 20 | 3 |
| February | 78.5 | 9.1 | 1937-02-12 | 15 | 1 |
| March | 104.5 | 9.0 | 1937-03-16 | 15 | 0 |
| April | 102.8 | 9.6 | 1937-04-18 | 13 | 0 |
| May | 275.1 | 14.5 | 1937-05-31 | 3 | 11 |
| June | 259.6 | 14.9 | 1937-06-22 | 8 | 13 |
| July | 310.3 | 14.7 | 1937-07-02 | 1 | 8 |
| August | 267.0 | 13.5 | 1937-08-04 | 5 | 10 |
| September | 204.7 | 11.2 | 1937-09-02 | 5 | 6 |
| October | 161.1 | 9.4 | 1937-10-20 | 9 | 9 |
| November | 70.4 | 8.0 | 1937-11-08 | 18 | 3 |
| December | 41.4 | 6.4 | 1937-12-05 | 22 | 0 |