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
2000.m_ssm_sxm_sxdm_dsf20m_dsf80
January54.87.72000-01-25211
February134.19.92000-02-2995
March132.19.62000-03-21110
April196.911.92000-04-2373
May303.113.32000-05-27212
June347.414.82000-06-10012
July232.112.82000-07-0371
August310.113.02000-08-16117
September194.211.62000-09-0966
October166.49.12000-10-1385
November102.17.72000-11-0692
December73.47.02000-12-02162