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
1967.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-23.21967-01-11-9.131120
February-9.21967-02-13-2.31900
March-3.31967-03-181.9800
April-2.11967-04-205.6200
May1.71967-05-0510.4000
June6.91967-06-1212.5000
July12.31967-07-0716.0000
August9.51967-08-1313.9000
September6.61967-09-1412.5000
October-4.01967-10-206.7200
November-6.61967-11-211.11500
December-11.21967-12-21-2.92320