January Weather in Delaware City, United States

Last updated: June 24, 2025

In Delaware City, United States, the average temperature in January hovers around 3°C (37°F), with extremes reaching a chilly -18°C (-1°F) at the minimum and a pleasant 20°C (68°F) at the maximum. Expect about 60 mm (2.4 in) of precipitation spread over 8 days, contributing to a relatively high average humidity of 84%.

January Temperature in Delaware City

In January in Delaware City, the average temperature is 3°C (37°F). The maximum can reach 20°C (68°F), while the minimum can drop as low as -18°C (-1°F). Be prepared for a wide range of temperatures while traveling during this month.

January Weather in Delaware City: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Delaware City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Delaware City, January typically has an average temperature of 3°C (37°F), with highs reaching up to 20°C (68°F) and lows dropping to around -18°C (-1°F).

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

January Precipitation in Delaware City

In Delaware City in January, the total precipitation amount is 60 mm (2.4 in) spread over the course of 8 days.

January Precipitation Trends in Delaware City

The chart displays monthly precipitation patterns in Delaware City, 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 Delaware City, January typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 8 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 Delaware City

In Delaware City in January humidity is 84%. With an average temperature of 3°C (37°F), this humidity feels like a damp chill that seeps into your bones, making outdoor excursions brisk and invigorating, yet requiring extra layers to stay comfortable.

January Average Humidity in Delaware City

This chart illustrates the average monthly humidity levels in Delaware City, 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 Delaware City is approximately 84%, 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 Delaware City

In Delaware City 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 Delaware City, you can check the information here.

Maximum UV Index Levels in Delaware City for January

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

Data source: Delaware City 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 Delaware City Compares to Other Months

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

This table compares monthly weather conditions in Delaware City, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (37°F)	60 mm (2.4 inches)	84%	moderate
February Weather	4°C (40°F)	98 mm (3.9 inches)	83%	moderate
March Weather	8°C (46°F)	103 mm (4.1 inches)	83%	high
April Weather	13°C (56°F)	100 mm (3.9 inches)	81%	very high
May Weather	18°C (65°F)	131 mm (5.2 inches)	78%	very high
June Weather	24°C (75°F)	108 mm (4.2 inches)	79%	very high
July Weather	27°C (80°F)	135 mm (5.3 inches)	74%	very high
August Weather	25°C (78°F)	151 mm (6.0 inches)	72%	very high
September Weather	22°C (72°F)	96 mm (3.8 inches)	75%	very high
October Weather	17°C (62°F)	111 mm (4.4 inches)	81%	high
November Weather	9°C (48°F)	80 mm (3.2 inches)	85%	moderate
December Weather	5°C (41°F)	97 mm (3.8 inches)	84%	moderate