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
1951.m_ssm_sxm_sxdm_dsf20m_dsf80
January58.57.31951-01-22211
February100.19.51951-02-28134
March82.510.81951-03-22191
April213.112.81951-04-2566
May210.412.51951-05-1793
June278.714.61951-06-1258
July302.514.31951-07-0849
August296.713.31951-08-13214
September175.010.61951-09-1393
October170.89.71951-10-1257
November73.97.51951-11-25161
December60.17.51951-12-01214