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
January95.97.91961-01-18132
February105.79.31961-02-28111
March208.710.61961-03-1848
April228.412.81961-04-21410
May219.213.51961-05-0595
June304.014.61961-06-26412
July314.014.71961-07-02312
August332.413.51961-08-01223
September296.312.31961-09-01122
October185.89.31961-10-0677
November80.08.81961-11-01185
December63.97.41961-12-09171