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
1998.m_ssm_sxm_sxdm_dsf20m_dsf80
January83.87.81998-01-31153
February148.99.11998-02-2854
March193.210.31998-03-2367
April144.611.71998-04-27101
May245.712.91998-05-0976
June263.914.21998-06-2336
July262.013.11998-07-1836
August294.612.81998-08-07111
September143.411.11998-09-01104
October117.09.21998-10-14142
November88.78.01998-11-07161
December51.26.21998-12-23210