<Table> <Tr> <Th_colspan="12"> show Imperial conversion </Th> </Tr> <Tr> <Td> J </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> J </Td> <Td> J </Td> <Td> </Td> <Td> </Td> <Td> O </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> 3.1 88 66 </Td> <Td> 3.9 90 68 </Td> <Td> 5.9 90 68 </Td> <Td> 5.5 88 68 </Td> <Td> 5.1 88 68 </Td> <Td> 4.3 86 66 </Td> <Td> 3.9 86 63 </Td> <Td> 3.9 84 63 </Td> <Td> 7.9 86 66 </Td> <Td> 8.3 86 66 </Td> <Td> 7.5 86 66 </Td> <Td> 4.7 86 66 </Td> </Tr> <Tr> <Td_colspan="12"> Average max. and min . temperatures in ° F </Td> </Tr> <Tr> <Td_colspan="12"> Precipitation totals in inches </Td> </Tr> </Table> <Tr> <Th_colspan="12"> show Imperial conversion </Th> </Tr> <Tr> <Td> J </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> J </Td> <Td> J </Td> <Td> </Td> <Td> </Td> <Td> O </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> 3.1 88 66 </Td> <Td> 3.9 90 68 </Td> <Td> 5.9 90 68 </Td> <Td> 5.5 88 68 </Td> <Td> 5.1 88 68 </Td> <Td> 4.3 86 66 </Td> <Td> 3.9 86 63 </Td> <Td> 3.9 84 63 </Td> <Td> 7.9 86 66 </Td> <Td> 8.3 86 66 </Td> <Td> 7.5 86 66 </Td> <Td> 4.7 86 66 </Td> </Tr>

What are the reason for high humidity in the equatorial region