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
1941.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-13.81941-01-30-4.52450
February-7.31941-02-080.41300
March-6.01941-03-182.4800
April-2.01941-04-136.6400
May3.21941-05-049.5000
June9.41941-06-1313.9000
July11.21941-07-0815.9001
August10.01941-08-0714.6000
September6.21941-09-219.2000
October0.31941-10-286.0000
November-6.61941-11-290.71200
December-11.31941-12-29-2.21720