January Weather in Firth, United States

Last updated: June 24, 2025

In January, the average temperature in Firth, United States is a chilly -3°C (27°F), with extremes ranging from a bone-numbing -28°C (-18°F) to a milder 17°C (62°F). Expect about 31 mm (1.2 in) of precipitation over 4 days, and brace yourself for an average humidity level of 76% that can make the cold feel even more biting. Stay warm and prepared!

January Temperature in Firth

In January, in Firth, the average temperature is -3°C (27°F). The maximum can reach 17°C (62°F), while the minimum can dip to as low as -28°C (-18°F). Dress in layers and prepare for a wide range of temperatures to fully enjoy your travel experience.

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

The chart illustrates January temperature patterns in Firth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Firth, January typically has an average temperature of -3°C (27°F), with highs reaching up to 17°C (62°F) and lows dropping to around -28°C (-18°F).

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

January Precipitation in Firth

In Firth in January, the total precipitation amount is 31 mm (1.2 in) over a span of 4 days.

January Precipitation Trends in Firth

The chart displays monthly precipitation patterns in Firth, 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 Firth, January typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 4 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 Firth

In Firth in January, humidity is 76%. With an average temperature of -3°C (27°F), this humidity feels like a chilly dampness that seeps into your bones, making it essential to bundle up when traveling outdoors.

January Average Humidity in Firth

This chart illustrates the average monthly humidity levels in Firth, 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 Firth is approximately 76%, 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 Firth

In Firth in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Firth, you can check the information here.

Maximum UV Index Levels in Firth for January

The chart shows the monthly maximum UV Index (UVI) for Firth 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 Firth typically reaches 3, which falls under the moderate exposure category.

Data source: Firth 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 Firth Compares to Other Months

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

This table compares monthly weather conditions in Firth, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	31 mm (1.2 inches)	76%	moderate
February Weather	-2°C (28°F)	29 mm (1.1 inches)	80%	moderate
March Weather	6°C (43°F)	93 mm (3.6 inches)	73%	high
April Weather	11°C (52°F)	53 mm (2.1 inches)	74%	very high
May Weather	18°C (64°F)	150 mm (5.9 inches)	78%	very high
June Weather	25°C (77°F)	105 mm (4.1 inches)	82%	very high
July Weather	26°C (80°F)	94 mm (3.7 inches)	83%	very high
August Weather	24°C (76°F)	97 mm (3.8 inches)	80%	very high
September Weather	21°C (71°F)	90 mm (3.6 inches)	75%	very high
October Weather	12°C (54°F)	130 mm (5.1 inches)	75%	high
November Weather	5°C (42°F)	27 mm (1.1 inches)	82%	moderate
December Weather	1°C (34°F)	33 mm (1.3 inches)	83%	moderate