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
1967.m_ssm_sxm_sxdm_dsf20m_dsf80
January97.38.21967-01-28153
February127.39.91967-02-25128
March154.510.91967-03-2682
April137.912.01967-04-17155
May215.912.71967-05-1395
June278.113.71967-06-2356
July323.013.21967-07-1919
August284.912.81967-08-1618
September218.111.51967-09-0459
October210.410.21967-10-21412
November101.18.01967-11-14122
December48.16.21967-12-21200