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
1933.m_ssm_sxm_sxdm_dsf20m_dsf80
January7.32.81933-01-28290
February82.09.11933-02-17162
March155.310.31933-03-30101
April193.113.51933-04-2663
May240.914.41933-05-2988
June267.014.01933-06-2125
July354.015.11933-07-01119
August314.914.21933-08-06113
September239.711.81933-09-07211
October120.29.31933-10-04132
November72.57.61933-11-02171
December36.37.61933-12-21231