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-3.03.41909-01-16-9.01909-01-30
February-3.33.51909-02-04-9.81909-02-23
March6.012.21909-03-30-0.91909-03-07
April11.420.81909-04-251.71909-04-04
May15.924.11909-05-175.51909-05-08
June19.523.91909-06-2314.81909-06-15
July20.827.71909-07-2612.91909-07-02
August22.626.91909-08-0317.81909-08-24
September17.922.51909-09-1813.81909-09-02
October13.518.41909-10-077.31909-10-26
November4.412.61909-11-17-3.21909-11-24
December4.810.01909-12-24-2.11909-12-17