January Weather in Derby, United States

Last updated: June 24, 2025

In Derby, United States, the average temperature in January hovers around 1°C (35°F), with extremes ranging from a chilling -19°C (-2°F) to a pleasant 21°C (71°F). Expect about 40 mm (1.6 in) of precipitation spread over 4 days, complemented by an average humidity of 77%. Prepare for a month of variety in both weather and experience!

January Temperature in Derby

In January in Derby, the average temperature is 1°C (35°F). The maximum can reach 21°C (71°F) and the minimum can be as low as -19°C (-2°F). Be prepared for a wide range of temperatures when traveling, as conditions can be quite variable.

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 (35°F), with highs reaching up to 21°C (71°F) and lows dropping to around -19°C (-2°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 precipitation amount is 40 mm (1.6 in) spread over a duration 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 40 mm (1.6 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 77%. With an average temperature of 1°C (35°F), this humidity feels like a heavy fog, making travel feel damp and chilly, as the cold air clings to your skin and every breath is filled with moisture.

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 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 Derby

In Derby 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 Derby, you can check the information here.

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 3, 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 (35°F)	40 mm (1.6 inches)	77%	moderate
February Weather	2°C (36°F)	28 mm (1.1 inches)	76%	high
March Weather	10°C (50°F)	82 mm (3.2 inches)	71%	high
April Weather	13°C (56°F)	85 mm (3.4 inches)	73%	very high
May Weather	19°C (67°F)	166 mm (6.5 inches)	83%	very high
June Weather	26°C (78°F)	106 mm (4.2 inches)	83%	extreme
July Weather	27°C (81°F)	67 mm (2.7 inches)	81%	extreme
August Weather	26°C (79°F)	86 mm (3.4 inches)	73%	very high
September Weather	23°C (74°F)	78 mm (3.1 inches)	67%	very high
October Weather	15°C (59°F)	127 mm (5.0 inches)	72%	high
November Weather	8°C (46°F)	27 mm (1.0 inches)	82%	moderate
December Weather	4°C (40°F)	30 mm (1.2 inches)	85%	moderate