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
1986.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-10.21986-01-11-2.62410
February-18.41986-02-28-5.92750
March-10.61986-03-010.11510
April-2.81986-04-157.0200
May6.21986-05-1112.2000
June7.01986-06-0713.4000
July8.21986-07-1013.8000
August6.51986-08-3114.7000
September1.81986-09-218.7000
October-1.91986-10-253.8500
November-5.31986-11-100.31500
December-11.81986-12-26-3.22610