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
1988.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-4.21988-01-130.41400
February-7.91988-02-22-0.71800
March-5.21988-03-201.21400
April-2.61988-04-175.2400
May5.21988-05-0210.9000
June8.61988-06-1412.6000
July10.51988-07-1815.8003
August5.61988-08-2813.9000
September6.61988-09-2011.0000
October-4.71988-10-294.4500
November-17.01988-11-24-5.42850
December-11.61988-12-18-1.62210