\newcounter{temperature}

\ifnum\month=1
  \newcommand\season{Qualmea}
  \newcommand\seasonDesc{\ifodd\value{page} sharp\else fierce\fi}
  \setcounter{temperature}{1}
\fi
\ifnum\month=2
  \newcommand\season{Atya}
  \newcommand\seasonDesc{\ifodd\value{page} calm\else pleasant\fi}
  \setcounter{temperature}{2}
\fi
\ifnum\month=3
  \newcommand\season{Alassea}
  \newcommand\seasonDesc{\ifodd\value{page} frigid\else chilling\fi}
  \setcounter{temperature}{0}
\fi
\ifnum\month=4
  \newcommand\season{Cantea}
  \newcommand\seasonDesc{\ifodd\value{page} calm\else pleasant\fi}
  \setcounter{temperature}{2}
\fi
\ifnum\month=5
  \newcommand\season{C\'alea}
  \newcommand\seasonDesc{\ifodd\value{page} humid\else warm\fi}
  \setcounter{temperature}{3}
\fi
\ifnum\month=6
  \newcommand\season{V\'erea}
  \newcommand\seasonDesc{\ifodd\value{page} calm\else pleasant\fi}
  \setcounter{temperature}{2}
\fi
\ifnum\month=7
  \newcommand\season{Otsea}
  \newcommand\seasonDesc{\ifodd\value{page} sharp\else fierce\fi}
  \setcounter{temperature}{1}
\fi
\ifnum\month=8
  \newcommand\season{Toldea}
  \newcommand\seasonDesc{\ifodd\value{page} calm\else pleasant\fi}
  \setcounter{temperature}{2}
\fi
\ifnum\month=9
  \newcommand\season{Laiquea}
  \newcommand\seasonDesc{\ifodd\value{page} humid\else warm\fi}
  \setcounter{temperature}{3}
\fi
\ifnum\month=10
  \newcommand\season{Quainea}
  \newcommand\seasonDesc{\ifodd\value{page} peaceful\else pleasant\fi}
  \setcounter{temperature}{2}
\fi
\ifnum\month=11
  \newcommand\season{Minquesta}
  \newcommand\seasonDesc{\ifodd\value{page} frigid\else chilling\fi}
  \setcounter{temperature}{0}
\fi
\ifnum\month=12
  \newcommand\season{Ohta}
  \newcommand\seasonDesc{\ifodd\value{page} calm\else pleasant\fi}
  \setcounter{temperature}{2}
\fi
