And they were cold.

Her gloves, too, had not been intended for rain, and they were wet through.

The cold bit at her fingers so that she had to beat her hands together.

Ranger misunderstood this to mean that he was to trot faster, which event was worse for Helen than freezing.
She saw another black, scudding mass of clouds bearing down with its trailing sheets of rain, and this one appeared streaked with white.
Snow! The wind was now piercingly cold.

Helen's body kept warm, but her extremities and ears began to suffer exceedingly.