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
1960.m_ssm_sxm_sxdm_dsf20m_dsf80
January64.57.21960-01-19180
February119.48.71960-02-02135
March108.610.51960-03-23143
April173.611.31960-04-22111
May236.013.81960-05-12108
June299.214.31960-06-1327
July274.814.21960-07-19413
August329.113.41960-08-17015
September211.911.61960-09-03510
October148.010.21960-10-09118
November49.47.01960-11-21220
December58.08.01960-12-01181