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
January43.36.81960-01-21230
February98.57.71960-02-08120
March109.69.51960-03-22100
April183.410.71960-04-1940
May211.813.31960-05-1285
June265.514.21960-06-2325
July264.413.61960-07-1136
August309.613.31960-08-04015
September200.011.51960-09-0467
October125.19.91960-10-04133
November48.77.31960-11-01210
December40.47.21960-12-01241