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
1961.m_ssm_sxm_sxdm_dsf20m_dsf80
January62.07.31961-01-26200
February68.27.41961-02-28160
March178.910.41961-03-1894
April201.412.11961-04-1447
May245.513.81961-05-3154
June286.514.21961-06-1769
July306.214.51961-07-07412
August327.913.41961-08-06215
September280.612.11961-09-01016
October136.59.51961-10-16104
November53.07.71961-11-19202
December55.16.81961-12-02180