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
1928.m_ssm_sxm_sxdm_dsf20m_dsf80
January49.06.31928-01-30200
February141.69.61928-02-2197
March148.210.01928-03-30120
April185.312.91928-04-1072
May253.114.21928-05-2268
June333.215.01928-06-10115
July379.614.91928-07-02019
August317.114.01928-08-03213
September175.211.21928-09-0498
October174.09.11928-10-0672
November91.78.01928-11-12131
December23.66.61928-12-02260