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
1933.m_ssm_sxm_sxdm_dsf20m_dsf80
January4.54.51933-01-08300
February72.88.61933-02-15172
March126.89.41933-03-28120
April104.812.51933-04-27141
May157.812.51933-05-16142
June147.410.31933-06-11100
July268.813.71933-07-0726
August271.913.21933-08-0727
September144.79.31933-09-0580
October105.28.31933-10-07130
November53.36.91933-11-09190
December14.53.61933-12-05270