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
2009.m_ssm_sxm_sxdm_dsf20m_dsf80
January63.97.82009-01-08202
February73.79.22009-02-19162
March127.411.12009-03-25132
April280.211.82009-04-2118
May273.814.72009-05-2569
June236.514.92009-06-1457
July343.114.42009-07-14113
August275.313.22009-08-20313
September240.511.32009-09-0139
October133.110.92009-10-03148
November58.77.32009-11-19180
December51.97.42009-12-26211