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
2003.m_ssm_sxm_sxdm_dsf20m_dsf80
January66.27.42003-01-01181
February128.68.92003-02-22105
March154.210.12003-03-2492
April191.312.32003-04-2152
May302.613.72003-05-3129
June319.814.22003-06-0409
July268.914.12003-07-0756
August323.313.42003-08-08117
September234.711.52003-09-01512
October118.19.62003-10-12143
November95.78.62003-11-04136
December99.47.72003-12-25158