This once, however, they had come early, to escape not the frost but the unseasonable heat of these late autumn days.

The unseasonable heat had a good side to it.

Day after day the unseasonable heat caressed the winter-weary city.

Everyone was at home, eating or napping, and taking refuge from the unseasonable heat.

In the unseasonable heat, I felt like I had been up for two days straight.

By then, the sun had touched the clouds in the west, and the unseasonable heat began to dissipate.

He grabbed his teaching satchel and walked over to the base, taking his time in the unseasonable heat.

It had nothing to do with Perrin's stubbornness, and little with the unseasonable heat.

I have a reason for remembering / the unseasonable heat of that evening.

I said, a dampness in the air that added to the oppressive unseasonable heat.