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
1956.m_ssm_sxm_sxdm_dsf20m_dsf80
January95.78.01956-01-20145
February84.38.11956-02-13130
March108.110.21956-03-30182
April177.810.81956-04-2172
May243.414.11956-05-3069
June221.114.61956-06-3077
July333.414.81956-07-08013
August318.613.91956-08-09117
September253.612.11956-09-02412
October203.110.01956-10-11412
November47.78.31956-11-11221
December48.57.81956-12-10222