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
1959.m_ssm_sxm_sxdm_dsf20m_dsf80
January61.46.51959-01-11170
February84.08.21959-02-19150
March158.110.71959-03-22112
April182.012.41959-04-2184
May245.814.61959-05-2475
June249.414.41959-06-05610
July256.214.51959-07-1046
August277.012.51959-08-23313
September242.811.61959-09-0849
October211.210.41959-10-0129
November45.66.11959-11-04210
December22.06.81959-12-29261