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
1987.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-27.81987-01-31-9.029100
February-18.31987-02-01-3.51760
March-15.81987-03-08-3.82050
April1.81987-04-165.5000
May3.21987-05-099.6000
June7.11987-06-0113.9001
July9.21987-07-2915.8003
August5.61987-08-1412.0000
September1.51987-09-3011.2000
October-7.01987-10-306.2400
November-7.51987-11-012.3800
December-11.71987-12-11-1.01710