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
1951.m_ssm_sxm_sxdm_dsf20m_dsf80
January77.17.11951-01-12150
February109.48.91951-02-11115
March125.910.41951-03-22132
April203.713.01951-04-25911
May227.213.21951-05-0154
June279.814.61951-06-28311
July334.315.01951-07-08112
August320.013.81951-08-02116
September214.011.11951-09-05611
October171.110.01951-10-0577
November95.87.61951-11-20131
December74.87.21951-12-01164