Conjecturing a climate
unsuspended suns
Suns that never set—an eternal summer where daylight doesn't end. She's imagining a place without winter's darkness.
freezing fancy
The imagination itself gets cold. Even the act of imagining warmth can't actually warm you.
Not obviated of degree
The cold can't be removed by temperature (degree) or by moving south (latitude). There's no escape through ordinary means.