<P> These valuations provide a maximum error of 0.1%, for − 30 ° C ≤ T ≤ 35 ° C and 1% <RH <100% . Also noteworthy is the Sonntag1990, </P> <Dl> <Dd> a = 6.112 mb, b = 17.62, c = 243.12 ° C; for − 45 ° C ≤ T ≤ 60 ° C (error ± 0.35 ° C). </Dd> </Dl> <Dd> a = 6.112 mb, b = 17.62, c = 243.12 ° C; for − 45 ° C ≤ T ≤ 60 ° C (error ± 0.35 ° C). </Dd> <P> Another common set of values originates from the 1974 Psychrometry and Psychrometric Charts, as presented by Paroscientific, </P>

How to calculate the dew point from relative humidity