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
1946.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-18.51946-01-27-8.329120
February-8.51946-02-15-1.51800
March-0.41946-03-183.8200
April1.01946-04-127.2000
May6.01946-05-1012.1000
June12.01946-06-1615.9004
July14.01946-07-1218.80011
August11.91946-08-0318.0009
September9.01946-09-2314.0002
October-8.41946-10-263.7500
November0.01946-11-114.3100
December-13.81946-12-20-2.72040