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
1970.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-14.51970-01-03-3.72430
February-10.01970-02-03-2.02310
March-11.31970-03-021.41010
April0.01970-04-045.5100
May1.91970-05-039.3000
June8.51970-06-0414.3000
July10.81970-07-0214.6000
August8.61970-08-2714.4000
September-1.31970-09-299.7200
October-2.31970-10-194.1500
November-3.61970-11-073.4300
December-17.21970-12-27-2.22340