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
1948.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-7.51948-01-022.2500
February-8.41948-02-25-1.61700
March-5.01948-03-281.11100
April-0.71948-04-278.3100
May6.11948-05-2012.8000
June9.41948-06-0114.3000
July7.21948-07-1015.4004
August12.01948-08-2216.8004
September6.51948-09-2413.2000
October0.11948-10-118.1000
November-7.71948-11-291.91500
December-17.21948-12-22-6.52960