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
1988.m_ssm_sxm_sxdm_dsf20m_dsf80
January42.77.21988-01-18241
February70.08.51988-02-21171
March134.39.81988-03-19151
April208.711.71988-04-2544
May212.513.11988-05-0983
June237.713.31988-06-0344
July327.813.21988-07-04112
August265.513.01988-08-06410
September154.410.51988-09-0180
October160.89.61988-10-0355
November116.88.11988-11-04102
December99.56.81988-12-25121