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
1992.m_ssm_sxm_sxdm_dsf20m_dsf80
January93.06.91992-01-30120
February126.58.31992-02-2470
March143.19.11992-03-19110
April196.611.21992-04-2061
May278.912.61992-05-2436
June210.812.01992-06-1660
July280.512.91992-07-2045
August314.612.31992-08-05113
September213.811.01992-09-0234
October94.09.11992-10-01160
November90.17.61992-11-09120
December51.87.01992-12-29202