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Allison spends a winter day recording the temperature once every three hours for science class. At $9 \mathrm{am}$, the temperature was $-13^{\circ} \mathrm{F}$. Between $9 \mathrm{am}$ and noon, the temperature increased by $14 \cdot 1^{\circ} \mathrm{F}$. Between noon and $3 \mathrm{pm}$, the temperature went down $1.1^{\circ} \mathrm{F}$. Between $3 \mathrm{pm}$ and $6 \mathrm{pm}$, the temperature went down $9.1^{\circ} \mathrm{F}$. What was the temperature at $6 \mathrm{pm}$ ?$\newline$Answer: $\square$ $^{\circ} \mathrm{F}$