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
January58.47.21998-01-12181
February157.99.91998-02-2645
March186.011.01998-03-3087
April134.612.71998-04-27122
May237.513.31998-05-3177
June257.714.21998-06-0636
July286.214.31998-07-19211
August293.313.51998-08-11315
September160.910.51998-09-11113
October130.09.31998-10-30112
November58.18.11998-11-13211
December63.96.81998-12-14200