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
1910.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-8.01910-01-25-1.52000
February-2.81910-02-181.7800
March-4.61910-03-311.01400
April-2.31910-04-025.3300
May3.81910-05-0711.4000
June8.81910-06-2114.3000
July11.31910-07-0515.6000
August10.31910-08-2615.7000
September6.21910-09-2711.3000
October1.01910-10-286.7000
November-5.41910-11-231.31200
December-5.01910-12-231.61000