January Weather in Delta, United States

Last updated: June 24, 2025

In January, the average temperature in Delta, United States is a brisk -4°C (25°F). Expect chilly extremes, with minimums plummeting to -25°C (-13°F), while maximums can reach a milder 13°C (56°F). During this month, anticipate around 31 mm (1.2 in) of precipitation spread over 8 days, accompanied by a notably high average humidity of 90%.

January Temperature in Delta

In January in Delta, the average temperature is -4°C (25°F), with maximums reaching up to 13°C (56°F) and minimums dropping as low as -25°C (-13°F). Travelers should be prepared for a chilly climate and plan accordingly for varying temperatures.

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

The chart illustrates January temperature patterns in Delta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Delta, January typically has an average temperature of -4°C (25°F), with highs reaching up to 13°C (56°F) and lows dropping to around -25°C (-13°F).

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

January Precipitation in Delta

In Delta in January, the precipitation amount is 31 mm (1.2 in) over the course of 8 days.

January Precipitation Trends in Delta

The chart displays monthly precipitation patterns in Delta, 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 Delta, January typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 8 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 Delta

In Delta in January humidity is 90%. With an average temperature of -4°C (25°F), this humidity feels like a dense, icy blanket wrapping around you, making travel feel particularly stifling in the cold despite the sub-zero temperatures.

January Average Humidity in Delta

This chart illustrates the average monthly humidity levels in Delta, 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 Delta is approximately 90%, 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 Delta

In Delta 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 Delta for better planning.

Maximum UV Index Levels in Delta for January

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

Data source: Delta 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 Delta Compares to Other Months

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

This table compares monthly weather conditions in Delta, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	31 mm (1.2 inches)	90%	moderate
February Weather	-1°C (30°F)	42 mm (1.7 inches)	89%	high
March Weather	4°C (40°F)	47 mm (1.8 inches)	81%	very high
April Weather	10°C (50°F)	26 mm (1.0 inches)	74%	very high
May Weather	15°C (60°F)	26 mm (1.0 inches)	58%	extreme
June Weather	22°C (71°F)	11 mm (0.4 inches)	47%	extreme
July Weather	25°C (77°F)	13 mm (0.5 inches)	39%	extreme
August Weather	23°C (74°F)	10 mm (0.4 inches)	39%	extreme
September Weather	19°C (66°F)	20 mm (0.8 inches)	53%	very high
October Weather	9°C (49°F)	36 mm (1.4 inches)	72%	high
November Weather	4°C (39°F)	21 mm (0.8 inches)	84%	moderate
December Weather	-3°C (28°F)	31 mm (1.2 inches)	90%	moderate