January Weather in Sac City, United States

Last updated: June 24, 2025

In January, the average temperature in Sac City, United States hovers around -6°C (22°F), with extremes that can dip to a chilling -29°C (-20°F) or rise to a mild 12°C (53°F). Expect 26 mm (1.0 in) of precipitation spread over 5 days, contributing to an average humidity of 80%. Prepare for a brisk and damp winter experience!

January Temperature in Sac City

In January in Sac City, the average temperature is -6°C (22°F). The maximum can reach 12°C (53°F) and the minimum can be as low as -29°C (-20°F). Be prepared for a chilly adventure and dress warmly for outdoor activities!

January Weather in Sac City: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Sac City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sac City, January typically has an average temperature of -6°C (22°F), with highs reaching up to 12°C (53°F) and lows dropping to around -29°C (-20°F).

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

January Precipitation in Sac City

In Sac City in January, the precipitation amount is 26 mm (1.0 in) over the course of 5 days.

January Precipitation Trends in Sac City

The chart displays monthly precipitation patterns in Sac City, 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 Sac City, January typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 5 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 Sac City

In Sac City in January humidity is 80%. With an average temperature of -6°C (22°F), this humidity feels like an icy blanket wrapping around you, making every breath feel heavier and every step more challenging. Traveling in these conditions requires warm, layered clothing and a determination to embrace the chill, as the cold dampness seeps through your gear, reminding you of the harshness of winter.

January Average Humidity in Sac City

This chart illustrates the average monthly humidity levels in Sac City, 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 Sac City is approximately 80%, 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 Sac City

In Sac City 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 Sac City, you can check the information here.

Maximum UV Index Levels in Sac City for January

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

Data source: Sac City 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 Sac City Compares to Other Months

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

This table compares monthly weather conditions in Sac City, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	26 mm (1.0 inches)	80%	moderate
February Weather	-6°C (22°F)	42 mm (1.6 inches)	84%	moderate
March Weather	3°C (38°F)	75 mm (2.9 inches)	75%	moderate
April Weather	8°C (47°F)	74 mm (2.9 inches)	79%	very high
May Weather	16°C (61°F)	147 mm (5.8 inches)	74%	very high
June Weather	23°C (74°F)	114 mm (4.5 inches)	81%	extreme
July Weather	24°C (76°F)	67 mm (2.6 inches)	82%	very high
August Weather	22°C (72°F)	110 mm (4.3 inches)	80%	very high
September Weather	19°C (67°F)	104 mm (4.1 inches)	75%	very high
October Weather	10°C (50°F)	107 mm (4.2 inches)	77%	high
November Weather	3°C (37°F)	36 mm (1.4 inches)	85%	moderate
December Weather	-2°C (29°F)	39 mm (1.5 inches)	83%	low