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-3.92.71909-01-16-12.11909-01-29
February-5.33.11909-02-06-11.41909-02-23
March4.812.51909-03-31-0.31909-03-07
April10.121.31909-04-270.11909-04-03
May14.922.11909-05-173.71909-05-08
June18.022.91909-06-0511.11909-06-17
July19.425.71909-07-2414.61909-07-02
August21.026.31909-08-0314.81909-08-15
September16.220.61909-09-1812.31909-09-06
October11.216.91909-10-056.01909-10-27
November3.012.31909-11-16-8.21909-11-26
December3.69.91909-12-20-2.91909-12-16