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
January38.37.11972-01-14230
February79.49.11972-02-20183
March182.010.61972-03-1466
April159.113.21972-04-29104
May209.414.31972-05-30106
June267.414.61972-06-0857
July193.013.31972-07-0982
August232.212.71972-08-1567
September152.19.51972-09-0790
October118.99.51972-10-20142
November115.38.61972-11-0794
December67.17.71972-12-06214