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
1968.m_ssm_sxm_sxdm_dsf20m_dsf80
January47.27.31968-01-17211
February76.38.81968-02-19151
March191.311.31968-03-27810
April245.613.11968-04-2238
May223.913.41968-05-0965
June300.714.51968-06-0638
July290.313.91968-07-04410
August222.913.01968-08-0146
September191.011.11968-09-0455
October215.510.01968-10-14212
November64.68.01968-11-01181
December30.66.81968-12-27260