January Weather in O'Neill, United States

Last updated: June 24, 2025

In January, the average temperature in O'Neill, United States hovers around -5°C (24°F). Be prepared for chilly extremes, as the minimum can plummet to -29°C (-20°F) while some days may reach up to 14°C (57°F). With an average precipitation amount of 23 mm (0.9 in) over 5 days and an average humidity level of 77%, expect a brisk atmosphere that underscores the beauty of winter.

January Temperature in O'Neill

In January in O'Neill, the average temperature is -5°C (24°F). Maximums can reach 14°C (57°F), while minimums can dip as low as -29°C (-20°F). Travelers should be prepared for a wide temperature range and pack accordingly.

January Weather in O'Neill: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in O'Neill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In O'Neill, January typically has an average temperature of -5°C (24°F), with highs reaching up to 14°C (57°F) and lows dropping to around -29°C (-20°F).

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

January Precipitation in O'Neill

In O'Neill in January, the precipitation amount is 23 mm (0.9 in) over the course of 5 days.

January Precipitation Trends in O'Neill

The chart displays monthly precipitation patterns in O'Neill, 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 O'Neill, January typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 5 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 O'Neill

In O'Neill in January humidity is 77%. With average temperature -5°C (24°F), this humidity feels like a biting chill that cuts through layers of clothing, making outdoor activities uncomfortable and travel more challenging as each breath creates a visible mist in the frigid air.

January Average Humidity in O'Neill

This chart illustrates the average monthly humidity levels in O'Neill, 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 O'Neill is approximately 77%, 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 O'Neill

In O'Neill 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 O'Neill, you can check the information here.

Maximum UV Index Levels in O'Neill for January

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

Data source: O'Neill 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 O'Neill Compares to Other Months

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

This table compares monthly weather conditions in O'Neill, 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)	23 mm (0.9 inches)	77%	moderate
February Weather	-5°C (23°F)	24 mm (0.9 inches)	81%	moderate
March Weather	3°C (37°F)	73 mm (2.9 inches)	71%	high
April Weather	7°C (46°F)	62 mm (2.4 inches)	75%	very high
May Weather	15°C (59°F)	134 mm (5.3 inches)	74%	very high
June Weather	23°C (73°F)	87 mm (3.4 inches)	82%	very high
July Weather	24°C (76°F)	95 mm (3.7 inches)	84%	very high
August Weather	22°C (73°F)	89 mm (3.5 inches)	82%	very high
September Weather	19°C (67°F)	65 mm (2.5 inches)	75%	very high
October Weather	9°C (49°F)	72 mm (2.8 inches)	72%	high
November Weather	3°C (38°F)	24 mm (0.9 inches)	81%	moderate
December Weather	-2°C (29°F)	44 mm (1.7 inches)	79%	low