Description of elements in the header
m_tnnmonthly minimum temperature
m_tnndthe day with the monthly minimum temperature
m_tnathe monthly mean of the daily minimum temperatures
m_dtn0number of frost days with a minimum temperature of ≤ 0 °C
m_dtn10number of days with a minimum temperature of ≤ -10 °C
m_dtn20number of warm nights with a minimum temperature of ≥ 20 °C
1912.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-17.21912-01-15-6.125100
February-9.61912-02-01-0.21200
March-1.51912-03-164.1300
April-3.51912-04-144.1500
May2.41912-05-0210.0000
June9.01912-06-1815.1000
July12.01912-07-0616.1000
August8.51912-08-1313.5001
September5.01912-09-178.8000
October-1.01912-10-284.8200
November-4.01912-11-050.71400
December-6.01912-12-08-0.61800