When to Cover Spigots?

The best way to minimize the damage from cold weather on household plumbing is to do a little winterizing pre-season, which essentially means protecting them against any freezing that can expand the water and rupture the pipes.

What temperature do you cover spigots?

In Sub-Freezing Weather Drip outside faucets 24 hours a day (5 drops per minute). This is not necessary unless temperatures are expected to be 28 degrees or below for at least 4 hours. (Be sure to turn off the faucets after the threat of freezing weather.) Open cabinet doors under sinks adjacent to outside walls.

When should you use a faucet cover?

In general, outdoor faucet covers work pretty well at their main job: preventing water faucets and pipes and from freezing in the winter. Because the faucet is exposed to outside temperatures, it's a vulnerable point in your water system, so it needs to be protected from the cold.