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
1979.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-14.81979-01-17-5.024100
February-6.51979-02-23-0.61400
March-4.81979-03-032.6800
April-1.01979-04-193.6200
May2.91979-05-0510.7000
June12.01979-06-1915.7000
July9.01979-07-1213.2000
August7.21979-08-3013.6000
September0.61979-09-1710.0000
October-6.41979-10-264.2400
November-2.01979-11-273.1700
December-5.61979-12-141.2900