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
1956.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-15.91956-01-30-1.61730
February-24.51956-02-17-13.729210
March-7.31956-03-11-1.62300
April-3.41956-04-096.2300
May6.41956-05-0610.1000
June9.01956-06-1013.5000
July11.81956-07-2615.5000
August9.41956-08-0914.7000
September2.61956-09-2010.2000
October-1.91956-10-124.6600
November-12.11956-11-26-0.91710
December-13.31956-12-30-2.22310