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
1948.m_ssm_sxm_sxdm_dsf20m_dsf80
January66.56.71948-01-01170
February97.69.81948-02-25166
March224.611.01948-03-24111
April198.713.11948-04-2088
May266.714.41948-05-1626
June260.515.01948-06-1447
July309.814.41948-07-29413
August292.414.11948-08-01415
September231.512.21948-09-0137
October165.310.21948-10-0497
November48.38.71948-11-13232
December56.97.91948-12-15201