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
1934.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-9.21934-01-13-4.53000
February-13.81934-02-05-3.32140
March-0.41934-03-095.1100
April1.31934-04-039.9000
May6.51934-05-2813.1000
June8.81934-06-0114.1000
July9.21934-07-0516.6000
August11.61934-08-0616.7000
September11.01934-09-1813.6000
October1.01934-10-197.3000
November-2.21934-11-264.0800
December-1.81934-12-033.1600