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
1927.m_ssm_sxm_sxdm_dsf20m_dsf80
January39.45.81927-01-13220
February110.79.51927-02-28125
March136.210.11927-03-16143
April201.912.91927-04-1875
May274.914.51927-05-31512
June327.714.91927-06-21117
July326.914.71927-07-02112
August258.013.21927-08-2269
September178.610.71927-09-0773
October143.69.71927-10-04103
November70.07.71927-11-26161
December30.45.81927-12-14250