January Weather in Dewar, United States

Last updated: June 24, 2025

In January, the average temperature in Dewar, United States hovers around 5°C (41°F). However, be prepared for the temperature extremes—it can drop as low as -15°C (6°F) or soar up to 25°C (77°F). This month sees an average of 79 mm (3.1 in) of precipitation over approximately 6 days, contributing to an average humidity of 79%. Whether you’re ready for a chill or a warm day, January in Dewar offers a little bit of everything!

January Temperature in Dewar

In January in Dewar, the average temperature is 5°C (41°F). Maximums can reach 25°C (77°F) while minimums can drop as low as -15°C (6°F). Be prepared for a wide range of weather conditions if you plan to travel during this time.

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

The chart illustrates January temperature patterns in Dewar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dewar, January typically has an average temperature of 5°C (41°F), with highs reaching up to 25°C (77°F) and lows dropping to around -15°C (6°F).

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

January Precipitation in Dewar

In Dewar in January, the precipitation amount is 79 mm (3.1 in) over the course of 6 days.

January Precipitation Trends in Dewar

The chart displays monthly precipitation patterns in Dewar, 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 Dewar, January typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Dewar

In Dewar in January, humidity is 79%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and requiring extra layers to stay warm and comfortable while traveling.

January Average Humidity in Dewar

This chart illustrates the average monthly humidity levels in Dewar, 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 Dewar is approximately 79%, 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 Dewar

In Dewar 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 Dewar for better planning.

Maximum UV Index Levels in Dewar for January

The chart shows the monthly maximum UV Index (UVI) for Dewar 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 Dewar typically reaches 4, which falls under the moderate exposure category.

Data source: Dewar 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 Dewar Compares to Other Months

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

This table compares monthly weather conditions in Dewar, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	79 mm (3.1 inches)	79%	moderate
February Weather	6°C (43°F)	78 mm (3.1 inches)	78%	high
March Weather	13°C (55°F)	105 mm (4.1 inches)	75%	high
April Weather	16°C (60°F)	162 mm (6.4 inches)	75%	very high
May Weather	21°C (71°F)	187 mm (7.3 inches)	83%	very high
June Weather	26°C (80°F)	84 mm (3.3 inches)	81%	extreme
July Weather	28°C (83°F)	79 mm (3.1 inches)	78%	extreme
August Weather	27°C (81°F)	97 mm (3.8 inches)	68%	very high
September Weather	25°C (77°F)	101 mm (4.0 inches)	64%	very high
October Weather	17°C (63°F)	135 mm (5.3 inches)	71%	high
November Weather	11°C (52°F)	55 mm (2.2 inches)	82%	moderate
December Weather	8°C (46°F)	59 mm (2.3 inches)	87%	moderate