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
January40.86.31942-01-28230
February58.97.61942-02-03180
March86.310.51942-03-26203
April146.012.51942-04-17101
May283.414.41942-05-19413
June300.515.61942-06-23414
July335.915.91942-07-12112
August322.213.31942-08-02319
September267.411.21942-09-01112
October212.510.31942-10-15615
November66.39.11942-11-02183
December72.47.81942-12-08194