October Weather in Cary, United States

Last updated: June 24, 2025

In October, the average temperature in Cary, United States hovers around 18°C (66°F). However, be prepared for a temperature range that can dip to a chilly 1°C (34°F) or soar up to a scorching 37°C (98°F). Expect an average precipitation of 85 mm (3.4 in) spread over about 8 days, accompanied by a relatively high average humidity of 80%, making the air feel quite moist.

October Temperature in Cary

In October in Cary, the average temperature is 18°C (66°F). Maximums can reach 37°C (98°F), and minimums can be as low as 1°C (34°F). Travelers should be prepared for a wide range of temperatures while exploring this destination.

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

The chart illustrates October temperature patterns in Cary, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cary, October typically has an average temperature of 18°C (66°F), with highs reaching up to 37°C (98°F) and lows dropping to around 1°C (34°F).

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

October Precipitation in Cary

In Cary in October, the precipitation amount is 85 mm (3.4 in) over the course of 8 days.

October Precipitation Trends in Cary

The chart displays monthly precipitation patterns in Cary, 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 Cary, October typically receives around 85 mm (3.4 inches) of precipitation spread over approximately 8 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 Cary

In Cary in October, humidity is 80%. With an average temperature of 18°C (66°F), this humidity feels like a warm, sticky embrace, making traveling slightly uncomfortable as perspiration builds up and the air feels heavy, causing an underlying lethargy.

October Average Humidity in Cary

This chart illustrates the average monthly humidity levels in Cary, 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 Cary is approximately 80%, 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 Cary

In Cary in October, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Cary.

Maximum UV Index Levels in Cary for October

The chart shows the monthly maximum UV Index (UVI) for Cary 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 Cary typically reaches 8, which falls under the very high exposure category.

Data source: Cary 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 Cary Compares to Other Months

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

This table compares monthly weather conditions in Cary, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	93 mm (3.6 inches)	85%	moderate
February Weather	9°C (49°F)	107 mm (4.2 inches)	82%	high
March Weather	12°C (53°F)	80 mm (3.2 inches)	81%	very high
April Weather	17°C (62°F)	114 mm (4.5 inches)	80%	very high
May Weather	22°C (71°F)	114 mm (4.5 inches)	81%	extreme
June Weather	25°C (76°F)	131 mm (5.2 inches)	81%	extreme
July Weather	27°C (81°F)	117 mm (4.6 inches)	81%	extreme
August Weather	26°C (79°F)	141 mm (5.6 inches)	80%	very high
September Weather	23°C (75°F)	140 mm (5.5 inches)	79%	very high
October Weather	18°C (66°F)	85 mm (3.4 inches)	80%	very high
November Weather	11°C (51°F)	83 mm (3.3 inches)	85%	moderate
December Weather	8°C (47°F)	107 mm (4.2 inches)	86%	moderate