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
1972.m_ssm_sxm_sxdm_dsf20m_dsf80
January62.26.71972-01-14180
February86.58.51972-02-05163
March191.810.51972-03-1356
April158.612.31972-04-2973
May190.713.01972-05-2681
June273.414.01972-06-0836
July217.412.71972-07-3071
August216.812.01972-08-1484
September174.610.51972-09-0763
October111.78.81972-10-20153
November90.57.41972-11-16130
December65.26.61972-12-28170