January Weather in Derby, United States

Last updated: June 24, 2025

In January, the average temperature in Derby, United States hovers around -1°C (31°F). Be prepared for a minimum temperature that can drop to -23°C (-10°F), but you might also experience a maximum of 19°C (67°F). During this time, expect precipitation of about 23 mm (0.9 in) spread across 4 days, and an average humidity level of 88%.

January Temperature in Derby

In January in Derby, the average temperature is -1°C (31°F), with maximums reaching 19°C (67°F) and minimums plummeting to -23°C (-10°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for their visit.

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

The chart illustrates January temperature patterns in Derby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Derby, January typically has an average temperature of -1°C (31°F), with highs reaching up to 19°C (67°F) and lows dropping to around -23°C (-10°F).

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

January Precipitation in Derby

In Derby in January, the total precipitation amount is 23 mm (0.9 in) over a span of 4 days.

January Precipitation Trends in Derby

The chart displays monthly precipitation patterns in Derby, 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 Derby, January typically receives around 23 mm (0.9 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 Derby

In Derby in January, humidity is 88%. With an average temperature of -1°C (31°F), this humidity feels like a biting cold that penetrates your clothing, making outdoor exploration challenging and the air clingy, adding an extra chill that can make you feel even colder than the temperature suggests.

January Average Humidity in Derby

This chart illustrates the average monthly humidity levels in Derby, 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 Derby is approximately 88%, 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 Derby

In Derby 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 Derby for better planning.

Maximum UV Index Levels in Derby for January

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

Data source: Derby 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 Derby Compares to Other Months

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

This table compares monthly weather conditions in Derby, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	23 mm (0.9 inches)	88%	moderate
February Weather	-1°C (30°F)	29 mm (1.1 inches)	87%	high
March Weather	4°C (40°F)	57 mm (2.3 inches)	81%	very high
April Weather	8°C (47°F)	55 mm (2.2 inches)	76%	extreme
May Weather	13°C (56°F)	111 mm (4.4 inches)	66%	extreme
June Weather	20°C (68°F)	48 mm (1.9 inches)	58%	extreme
July Weather	23°C (74°F)	43 mm (1.7 inches)	52%	extreme
August Weather	22°C (72°F)	35 mm (1.4 inches)	56%	extreme
September Weather	19°C (66°F)	29 mm (1.2 inches)	65%	very high
October Weather	9°C (49°F)	37 mm (1.5 inches)	76%	high
November Weather	5°C (41°F)	24 mm (1.0 inches)	82%	moderate
December Weather	1°C (34°F)	14 mm (0.6 inches)	89%	moderate