<Tr> <Td> 21--24 ° C </Td> <Td> 70--74 ° F </Td> <Td> 52--61% </Td> </Tr> <Tr> <Td> 18--21 ° C </Td> <Td> 65--69 ° F </Td> <Td> 44--51% </Td> </Tr> <Tr> <Td> 16--18 ° C </Td> <Td> 60--64 ° F </Td> <Td> 37--43% </Td> </Tr> <Tr> <Td> 13--16 ° C </Td> <Td> 55--59 ° F </Td> <Td> 31--36% </Td> </Tr>

Calculating relative humidity from temperature and dew point