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
1976.m_ssm_sxm_sxdm_dsf20m_dsf80
January60.56.91976-01-07161
February78.28.21976-02-07171
March151.910.11976-03-31102
April200.811.11976-04-1873
May256.413.51976-05-09510
June303.714.61976-06-06411
July303.814.61976-07-01411
August244.713.01976-08-0234
September111.810.41976-09-09152
October80.37.61976-10-27180
November37.17.11976-11-25210
December42.36.81976-12-11230