October Weather in New Castle, United States

Last updated: June 24, 2025

In October, the average temperature in New Castle, United States hovers around 16°C (61°F). Expect a range where the minimum can dip to 3°C (37°F), while the maximum soars to 34°C (94°F). Be prepared for 109 mm (4.3 in) of precipitation spread over 9 days, contributing to an average humidity of 81%.

October Temperature in New Castle

In October in New Castle, the average temperature is 16°C (61°F). The maximum can reach 34°C (94°F), and the minimum can be as low as 3°C (37°F). It's advisable to pack layers and be prepared for both warm days and cool nights while traveling.

October Weather in New Castle: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in New Castle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Castle, October typically has an average temperature of 16°C (61°F), with highs reaching up to 34°C (94°F) and lows dropping to around 3°C (37°F).

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

October Precipitation in New Castle

In New Castle in October, the total precipitation amount is 109 mm (4.3 in) spread over 9 days.

October Precipitation Trends in New Castle

The chart displays monthly precipitation patterns in New Castle, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In New Castle, October typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in New Castle

In New Castle in October, humidity is 81%. With an average temperature of 16°C (61°F), this humidity feels like a warm, heavy blanket wrapping around you as you explore the sights, making it essential to stay hydrated and take regular breaks in the shade.

October Average Humidity in New Castle

This chart illustrates the average monthly humidity levels in New Castle, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in New Castle is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in New Castle

In New Castle in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in New Castle, you can refer to this Hourly UV Index in New Castle.

Maximum UV Index Levels in New Castle for October

The chart shows the monthly maximum UV Index (UVI) for New Castle in October, 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 October, the maximum UV index in New Castle typically reaches 6, which falls under the high exposure category.

Data source: New Castle October 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 October Weather in New Castle Compares to Other Months

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

This table compares monthly weather conditions in New Castle, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	64 mm (2.5 inches)	84%	moderate
February Weather	4°C (39°F)	103 mm (4.1 inches)	83%	moderate
March Weather	7°C (45°F)	106 mm (4.2 inches)	83%	high
April Weather	13°C (55°F)	105 mm (4.1 inches)	81%	very high
May Weather	18°C (65°F)	135 mm (5.3 inches)	78%	very high
June Weather	23°C (74°F)	118 mm (4.7 inches)	79%	very high
July Weather	26°C (79°F)	136 mm (5.4 inches)	74%	very high
August Weather	25°C (77°F)	140 mm (5.5 inches)	72%	very high
September Weather	22°C (71°F)	100 mm (3.9 inches)	75%	very high
October Weather	16°C (61°F)	109 mm (4.3 inches)	81%	high
November Weather	8°C (47°F)	83 mm (3.3 inches)	85%	moderate
December Weather	4°C (40°F)	100 mm (3.9 inches)	84%	moderate