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
1966.m_ssm_sxm_sxdm_dsf20m_dsf80
January45.67.41966-01-06221
February98.27.91966-02-25100
March151.111.11966-03-31103
April189.412.31966-04-1475
May298.814.41966-05-31417
June272.414.51966-06-2249
July295.914.21966-07-14310
August300.713.31966-08-07316
September240.411.41966-09-0806
October179.010.01966-10-0288
November62.68.61966-11-04202
December46.47.01966-12-04220