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
1942.m_ssm_sxm_sxdm_dsf20m_dsf80
January47.67.51942-01-02211
February66.48.81942-02-25172
March116.410.31942-03-24132
April142.213.21942-04-17133
May250.514.01942-05-26510
June307.414.71942-06-23613
July337.114.81942-07-05213
August303.813.81942-08-02417
September250.210.31942-09-1215
October189.59.41942-10-0179
November66.48.61942-11-02181
December65.77.71942-12-27182