Description of elements in the header
m_tamonthly mean temperature
m_taxthe daily maximum mean temperature in the month
m_taxdthe day with the daily maximum mean temperature
m_tanthe daily minimum mean temperature in the month
m_tandthe day with the daily minimum mean temperature
1909.m_tam_taxm_taxdm_tanm_tand
January-2.43.51909-01-14-8.81909-01-25
February-1.65.11909-02-04-7.71909-02-23
March5.413.11909-03-310.31909-03-17
April11.520.31909-04-272.91909-04-04
May15.421.81909-05-176.61909-05-08
June19.423.31909-06-2214.61909-06-17
July20.126.61909-07-2614.51909-07-02
August21.825.41909-08-1818.21909-08-24
September17.821.41909-09-1814.31909-09-05
October14.018.21909-10-037.31909-10-26
November4.611.61909-11-16-2.81909-11-24
December3.99.11909-12-05-2.01909-12-17