What Is the Weather Like in January?

Weather conditions during the month of January are dependent upon the climate and season in a geographic location. In the northern hemisphere, January corresponds to the winter season, while in the southern hemisphere, the same month corresponds to summer.

Although the Earth is closer to the sun in January, the planet's 23.5 degree tilt away from the sun's rays disperses solar energy over a larger area, resulting in lower temperatures relative to the summer months. In the northeastern United States, January weather often brings below freezing temperatures, snow, ice and poor visibility.

In the southern hemisphere, January brings warmer temperatures because the Earth is tilted towards the sun, resulting in a greater concentration of solar energy. In Brazil, located on the east coast of South America, the weather in January brings high temperatures and increased rainfall. The weather in January can be freezing cold, exceedingly warm, or anywhere in between; it just depends on the climate.