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
1968.m_ssm_sxm_sxdm_dsf20m_dsf80
January72.87.11968-01-20170
February64.49.41968-02-27193
March177.810.91968-03-2977
April241.513.11968-04-23611
May239.313.91968-05-0965
June324.015.01968-06-30213
July316.915.21968-07-01212
August205.412.61968-08-1374
September181.011.01968-09-0498
October172.610.11968-10-0534
November44.17.51968-11-02220
December31.95.41968-12-10240