Description of elements in the header
m_ssamount of monthly sunshine duration
m_sxthe maximum sunshine duration in the month
m_sxdthe day with the maximum sunshine duration
m_dsf20number of days when the sunshine duration is less than 20 % of the astronomic sunshine duration
m_dsf80number of days when the sunshine duration is more than 80 % of the astronomic sunshine duration
1947.m_ssm_sxm_sxdm_dsf20m_dsf80
January67.46.71947-01-24160
February11.13.21947-02-26260
March103.29.61947-03-27140
April226.612.51947-04-3057
May213.012.51947-05-0993
June254.112.81947-06-0153
July251.712.61947-07-2543
August281.013.31947-08-0528
September241.711.11947-09-0134
October163.69.01947-10-0390
November41.06.51947-11-03210
December30.55.71947-12-12230