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
1978.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-10.41978-01-10-3.02720
February-18.21978-02-21-2.92040
March-4.51978-03-231.8900
April-3.21978-04-074.9100
May-0.61978-05-139.2100
June8.51978-06-2012.6000
July8.61978-07-0913.1000
August5.61978-08-2712.2001
September1.81978-09-219.6000
October-3.51978-10-294.4500
November-3.01978-11-160.61600
December-11.51978-12-07-1.01810