cold spell
cold snap

She hadn't used it since the beginning of the cold spell.

So look at us now: locked in a cold spell.

People said the cold spell and rain would soon pass.

Until the cold spell of the last few days, nature had given the impression that winter would never come.

For instance, there was a night during this cold spell.

There is usually a cold spell at the last 2 weeks of December.

This panic and cold spell goes right down to Florida.

What happened before the first cold spell of the year?

Yet we should not be surprised, for when better to catch people's attention, especially during a cold spell?

It is the second prolonged cold spell within a year.