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
1958.m_ssm_sxm_sxdm_dsf20m_dsf80
January60.87.41958-01-28190
February49.88.41958-02-23200
March114.99.11958-03-13140
April157.312.51958-04-25102
May319.313.91958-05-18012
June219.814.31958-06-0798
July341.014.61958-07-13215
August297.913.61958-08-06212
September203.611.61958-09-0779
October140.28.81958-10-2491
November23.95.61958-11-05250
December47.17.31958-12-02211