October Weather in Derry, United States

Last updated: June 24, 2025

In Derry, United States, the average temperature in October hovers around 13°C (56°F). You'll experience a minimum chill of -2°C (28°F) at times, while the maximum can soar to 30°C (85°F). Expect around 116 mm (4.6 in) of precipitation over 13 days, contributing to an average humidity level of 81%. Stay prepared for a mix of weather!

October Temperature in Derry

In October in Derry, the average temperature is 13°C (56°F). Maximums can reach 30°C (85°F), and minimums can be as low as -2°C (28°F). This significant variation in temperature makes it essential for travelers to pack accordingly, ensuring they are prepared for both warm and chilly conditions.

October Weather in Derry: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Derry, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Derry, October typically has an average temperature of 13°C (56°F), with highs reaching up to 30°C (85°F) and lows dropping to around -2°C (28°F).

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

October Precipitation in Derry

In Derry in October, the total precipitation amount reaches 116 mm (4.6 in) over the course of 13 days.

October Precipitation Trends in Derry

The chart displays monthly precipitation patterns in Derry, 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 Derry, October typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 13 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 Derry

In Derry in October, humidity is 81%. With an average temperature of 13°C (56°F), this humidity feels like a blanket of damp air that clings to your skin, making it essential to pack breathable clothing and stay hydrated while exploring.

October Average Humidity in Derry

This chart illustrates the average monthly humidity levels in Derry, 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 Derry 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 Derry

In Derry 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 Derry, you can refer to this Hourly UV Index in Derry.

Maximum UV Index Levels in Derry for October

The chart shows the monthly maximum UV Index (UVI) for Derry 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 Derry typically reaches 6, which falls under the high exposure category.

Data source: Derry 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 Derry Compares to Other Months

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

This table compares monthly weather conditions in Derry, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	96 mm (3.8 inches)	89%	moderate
February Weather	1°C (34°F)	135 mm (5.3 inches)	90%	moderate
March Weather	4°C (40°F)	117 mm (4.6 inches)	89%	high
April Weather	10°C (50°F)	137 mm (5.4 inches)	88%	very high
May Weather	16°C (61°F)	158 mm (6.2 inches)	80%	very high
June Weather	20°C (68°F)	154 mm (6.1 inches)	79%	very high
July Weather	23°C (73°F)	121 mm (4.8 inches)	74%	very high
August Weather	22°C (71°F)	92 mm (3.6 inches)	64%	very high
September Weather	19°C (66°F)	123 mm (4.8 inches)	67%	very high
October Weather	13°C (56°F)	116 mm (4.6 inches)	81%	high
November Weather	5°C (41°F)	96 mm (3.8 inches)	89%	moderate
December Weather	1°C (35°F)	118 mm (4.6 inches)	88%	low