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
1938.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-19.81938-01-08-4.52390
February-6.81938-02-24-2.22600
March-5.41938-03-142.7700
April-1.81938-04-123.7300
May1.81938-05-0610.3000
June10.21938-06-0115.7003
July11.21938-07-1216.9006
August10.41938-08-2416.5004
September6.31938-09-1810.9000
October2.01938-10-268.2000
November-0.21938-11-213.8100
December-16.01938-12-27-3.01860