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
January1.210.71939-01-18-11.11939-01-01
February1.87.51939-02-13-3.11939-02-01
March2.19.51939-03-27-2.61939-03-14
April12.617.71939-04-143.91939-04-01
May15.619.81939-05-2011.11939-05-06
June19.724.41939-06-2614.81939-06-05
July22.029.71939-07-2213.71939-07-26
August20.526.51939-08-0615.61939-08-16
September14.820.31939-09-025.51939-09-29
October10.117.81939-10-162.61939-10-31
November4.99.11939-11-07-1.31939-11-23
December-0.48.31939-12-06-13.01939-12-28