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
2013.m_ssm_sxm_sxdm_dsf20m_dsf80
January41.26.92013-01-31210
February48.79.22013-02-28201
March89.09.72013-03-03204
April
May
June
July
August
September
October
November
December