Elements

Different countries estimate daily average temperatures using different methods and formulae. Also, the time intervals for observing minimum and maximum temperature differ and the time interval for accumulating 24h rainfall differ. The table below describes the different "Ele ID" values available for each element in the database. These recording characteristics are included when downloading the daily data.

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Element	Ele ID	Description	Unit
MAXIMUM TEMPERATURE (TX)
	TX1	Maximum temperature unknown interval	0.1 °C
MINIMUM TEMPERATURE (TN)
	TN1	Minimum temperature unknown interval	0.1 °C
	TN2	Minimum temparature between 7, 8 or 9 a.m previous day and 7, 8 or 9 a.m	0.1 °C
MEAN TEMPERATURE (TG)
	TG1	Mean temperature from 0 till 24 UTC	0.1 °C
	TG2	Mean temperature calculated as average of TN and TX	0.1 °C
PRECIPITATION AMOUNT (RR)
	RR1	Precipitation amount morning today 06 UT until morning next day	0.1 mm
	RR2	Precipitation from 7, 8 or 9 a.m till 7, 8 or 9 a.m next day	0.1 mm