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
1971.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-17.21971-01-13-5.62580
February-9.21971-02-28-0.91700
March-11.91971-03-08-1.61740
April-1.91971-04-165.6200
May7.41971-05-0911.3000
June8.11971-06-1413.2000
July8.01971-07-0114.0001
August8.91971-08-2614.8000
September0.41971-09-197.9000
October-6.31971-10-312.9500
November-12.31971-11-220.81120
December-14.41971-12-10-0.51710