January Weather in Onawa, United States

Last updated: June 24, 2025

In January, the average temperature in Onawa, United States hovers around -5°C (24°F), while it can dip as low as -30°C (-22°F) and peak at 13°C (55°F). Expect a modest precipitation amount of 27 mm (1.1 in) spread across approximately 4 days, with humidity levels averaging a cozy 76%.

January Temperature in Onawa

In January in Onawa, the average temperature is -5°C (24°F). The maximum can reach 13°C (55°F), while the minimum can be as low as -30°C (-22°F). Travelers should be prepared for a wide range of temperatures and dress accordingly.

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

The chart illustrates January temperature patterns in Onawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onawa, January typically has an average temperature of -5°C (24°F), with highs reaching up to 13°C (55°F) and lows dropping to around -30°C (-22°F).

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

January Precipitation in Onawa

In Onawa in January, the total precipitation amount is 27 mm (1.1 in) over a span of 4 days.

January Precipitation Trends in Onawa

The chart displays monthly precipitation patterns in Onawa, 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 Onawa, January typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 4 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 Onawa

In Onawa in January, humidity is 76%. With an average temperature of -5°C (24°F), this humidity feels like a chilling embrace, making travel uncomfortable as the cold dampness seeps into your bones, creating a biting sensation that can make even short excursions feel arduous.

January Average Humidity in Onawa

This chart illustrates the average monthly humidity levels in Onawa, 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 Onawa 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 Onawa

In Onawa 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 Onawa, you can check the information here.

Maximum UV Index Levels in Onawa for January

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

Data source: Onawa 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 Onawa Compares to Other Months

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

This table compares monthly weather conditions in Onawa, 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 (24°F)	27 mm (1.1 inches)	76%	moderate
February Weather	-5°C (24°F)	33 mm (1.3 inches)	80%	moderate
March Weather	4°C (40°F)	83 mm (3.3 inches)	73%	moderate
April Weather	9°C (49°F)	71 mm (2.8 inches)	74%	very high
May Weather	16°C (62°F)	142 mm (5.6 inches)	78%	very high
June Weather	24°C (75°F)	114 mm (4.5 inches)	82%	extreme
July Weather	25°C (77°F)	64 mm (2.5 inches)	83%	very high
August Weather	23°C (74°F)	110 mm (4.3 inches)	80%	very high
September Weather	20°C (69°F)	91 mm (3.6 inches)	75%	very high
October Weather	11°C (52°F)	94 mm (3.7 inches)	75%	high
November Weather	4°C (39°F)	29 mm (1.1 inches)	82%	moderate
December Weather	-1°C (30°F)	40 mm (1.6 inches)	83%	low