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
1968.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-13.41968-01-10-4.32650
February-5.71968-02-190.11600
March-6.71968-03-04-0.21300
April-2.41968-04-125.6400
May2.41968-05-2011.2000
June5.51968-06-0213.2000
July7.81968-07-1313.6001
August8.51968-08-2213.6000
September2.41968-09-2911.0000
October-3.11968-10-245.2600
November-4.41968-11-284.4500
December-10.41968-12-12-2.72510