How to calculate the daily min and max temperature

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The daily average min and max temperature has to be measured from 8 UTC current day to 7 UTC the next day, according to the DPRA Heat stress report. The temperatures are also measured in 0.1 °C, so the values from the KNMI weather data column T have to be divided by 10 to get to values in °C.

Tutorial daily min temp table (Heat Overlay).pngTutorial daily max temp table (Heat Overlay).png

Column Name Unit Dutch Description
2/B YYYYMMDD Date datum (YYYY=jaar,MM=maand,DD=dag)
3/C HH Hour tijd (HH=uur, UT.12 UT=13 MET, 14 MEZT. Uurvak 05 loopt van 04.00 UT tot 5.00 UT
8/H T 0.1 °C Temperatuur (in 0.1 graden Celsius) op 1.50 m hoogte tijdens de waarneming


  • The values at each hour regard the measurement over the preceding hour up to that time. To obtain the value for august 2nd, the values at 8:00 UTC of august 2nd, up to and including 7:00 UTC on august 3rd must be used.

See also