January Weather in Earth, United States

Last updated: June 24, 2025

In Earth, United States, the average temperature for January hovers around 4°C (40°F). Expect chilly nights with a minimum dip to -15°C (6°F) and pleasant warmth during the day, reaching a maximum of 24°C (76°F). With an average humidity of 74%, you might feel the dampness in the air. Rainfall is modest, with approximately 18 mm (0.7 in) expected over just 2 days.

January Temperature in Earth

In January in Earth, the average temperature is 4°C (40°F). Maximum temperatures can reach 24°C (76°F), while minimums can drop as low as -15°C (6°F). This varied climate makes it essential to pack layers for your trip to Earth during this time.

January Weather in Earth: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Earth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Earth, January typically has an average temperature of 4°C (40°F), with highs reaching up to 24°C (76°F) and lows dropping to around -15°C (6°F).

Data source: Temperature data for Earth generated using information from the Copernicus Climate Change Service.

January Precipitation in Earth

In Earth in January, the precipitation amount is 18 mm (0.7 in) over the course of 2 days.

January Precipitation Trends in Earth

The chart displays monthly precipitation patterns in Earth, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Earth, January typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 2 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Earth

In Earth in January humidity is 74%. With an average temperature of 4°C (40°F), this humidity feels like a chilly embrace that makes every breath a little heavier, which can be quite uncomfortable for traveling.

January Average Humidity in Earth

This chart illustrates the average monthly humidity levels in Earth, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Earth is approximately 74%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Earth

In Earth in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Earth for better planning.

Maximum UV Index Levels in Earth for January

The chart shows the monthly maximum UV Index (UVI) for Earth in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Earth typically reaches 4, which falls under the moderate exposure category.

Data source: Earth January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Earth Compares to Other Months

Weather in Earth varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Earth, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Earth, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	18 mm (0.7 inches)	74%	moderate
February Weather	6°C (43°F)	12 mm (0.5 inches)	75%	high
March Weather	11°C (53°F)	36 mm (1.4 inches)	61%	very high
April Weather	15°C (59°F)	21 mm (0.8 inches)	61%	extreme
May Weather	21°C (69°F)	49 mm (1.9 inches)	69%	extreme
June Weather	25°C (78°F)	34 mm (1.3 inches)	74%	extreme
July Weather	27°C (80°F)	29 mm (1.1 inches)	75%	extreme
August Weather	26°C (78°F)	43 mm (1.7 inches)	78%	extreme
September Weather	22°C (72°F)	41 mm (1.6 inches)	76%	very high
October Weather	15°C (59°F)	67 mm (2.7 inches)	76%	very high
November Weather	10°C (50°F)	14 mm (0.5 inches)	80%	high
December Weather	6°C (43°F)	13 mm (0.5 inches)	77%	moderate