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
1954.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-21.01954-01-04-10.729160
February-24.21954-02-06-12.126180
March-0.71954-03-102.4400
April-4.41954-04-113.5300
May2.41954-05-1510.7000
June10.31954-06-0816.1000
July9.01954-07-1014.0000
August9.21954-08-2414.4000
September5.21954-09-2512.2000
October-1.31954-10-306.1200
November-7.11954-11-232.41000
December-6.01954-12-190.91300