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
January6.13.51933-01-28300
February74.38.21933-02-16160
March148.610.91933-03-28115
April165.113.01933-04-27104
May181.414.21933-05-22113
June188.812.31933-06-0460
July314.014.41933-07-21214
August310.013.51933-08-06016
September219.410.91933-09-1137
October118.010.01933-10-04135
November93.08.61933-11-19144
December41.47.91933-12-04232