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
2008.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-12.62008-01-04-2.72420
February-12.42008-02-17-1.41710
March-4.72008-03-212.5600
April0.72008-04-015.8000
May3.12008-05-089.7000
June9.32008-06-1615.2000
July11.92008-07-0615.1000
August8.82008-08-3114.8001
September4.32008-09-2910.4001
October1.82008-10-196.8000
November-5.52008-11-243.11000
December-9.22008-12-270.41100