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
1952.m_ssm_sxm_sxdm_dsf20m_dsf80
January39.55.41952-01-07220
February39.77.11952-02-06210
March149.810.91952-03-17124
April244.812.81952-04-19312
May241.813.91952-05-3133
June298.114.71952-06-05412
July347.314.71952-07-11117
August314.613.51952-08-02316
September172.710.81952-09-1653
October125.89.71952-10-18103
November55.37.51952-11-05200
December29.46.01952-12-24220