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
1939.m_tam_taxm_taxdm_tanm_tand
January1.011.61939-01-18-7.11939-01-11
February2.08.71939-02-11-2.41939-02-03
March2.07.31939-03-07-3.01939-03-17
April12.518.41939-04-077.51939-04-01
May13.216.41939-05-188.51939-05-05
June17.922.81939-06-3013.01939-06-14
July20.326.01939-07-2111.81939-07-25
August19.725.61939-08-0513.61939-08-16
September14.422.01939-09-015.31939-09-29
October8.718.41939-10-152.51939-10-31
November4.98.81939-11-07-2.01939-11-25
December-1.79.01939-12-01-13.81939-12-29