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
1929.m_tnnm_tnndm_tnam_dtn0m_dtn10m_dtn20
January-13.21929-01-23-6.93080
February-23.61929-02-11-12.227190
March-10.21929-03-04-2.32220
April-2.71929-04-052.51000
May6.51929-05-0212.6000
June6.71929-06-0213.7000
July11.01929-07-1515.2002
August13.21929-08-2317.6004
September3.21929-09-2910.9000
October3.51929-10-138.1000
November0.01929-11-174.8100
December-4.51929-12-200.01800