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
1924.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-15.41924-01-03-8.430110
February-13.41924-02-02-3.02720
March-8.61924-03-010.81600
April0.21924-04-136.7000
May7.01924-05-0313.9000
June11.81924-06-0816.4002
July12.11924-07-2616.7004
August10.01924-08-2814.8000
September10.31924-09-0413.3000
October2.11924-10-256.8000
November-7.41924-11-20-1.62200
December-9.41924-12-14-2.82200