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
2001.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-8.92001-01-15-1.61700
February-11.52001-02-27-1.51710
March-2.32001-03-024.1300
April-2.52001-04-154.8400
May4.92001-05-1411.1000
June6.92001-06-0612.6000
July10.82001-07-0615.7001
August7.12001-08-3015.7001
September4.42001-09-1010.2000
October-0.72001-10-288.7100
November-6.02001-11-16-0.41900
December-24.92001-12-25-8.630120