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.

These orbital changes led to a cold period known as the little ice age during the 17th, 18th and 19th centuries.

They could see that the cold period was not ended.

However, the commercial industry was wiped out during a very cold period in the late 1930s.

A nearly identical increase was observed in the coldest period of the next years, she said.

On the other hand, the dry season includes a cold period and a period of heat.

But they all agree that the cold period is necessary.

More serious is that the oceans could perhaps freeze over during cold periods.

Then a cold period must follow, to break down inhibitors, before baby plants can emerge.

Most cold periods begin very slowly because glaciers take a long time to develop.

However there were several less cold periods after this.