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
2004.m_ssm_sxm_sxdm_dsf20m_dsf80
January54.87.42004-01-23211
February105.110.22004-02-20135
March110.711.92004-03-18173
April162.712.32004-04-29116
May260.913.72004-05-3056
June246.814.92004-06-1566
July284.914.62004-07-05511
August321.113.42004-08-17217
September201.912.42004-09-0759
October128.710.22004-10-06148
November107.99.02004-11-24136
December62.18.02004-12-21225