October Weather in Annandale, United States

Last updated: June 24, 2025

In October, the average temperature in Annandale, United States hovers around 9°C (48°F). While temperatures can dip to a chilly -11°C (12°F), they can also rise to a warm 28°C (83°F). Expect about 103 mm (4.0 in) of precipitation over 10 days, contributing to an average humidity of 84%. Plan your visit accordingly!

October Temperature in Annandale

In October in Annandale, the average temperature is 9°C (48°F). The maximum can reach 28°C (83°F), while the minimum can drop as low as -11°C (12°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates October temperature patterns in Annandale, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Annandale, October typically has an average temperature of 9°C (48°F), with highs reaching up to 28°C (83°F) and lows dropping to around -11°C (12°F).

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

October Precipitation in Annandale

In Annandale in October, the precipitation amount is 103 mm (4.0 in) over a span of 10 days.

October Precipitation Trends in Annandale

The chart displays monthly precipitation patterns in Annandale, 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 Annandale, October typically receives around 103 mm (4.0 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

October Humidity in Annandale

In Annandale in October, humidity is 84%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that envelops you, making it essential to dress in layers and stay active, as the moisture in the air can quickly lead to discomfort while traveling.

October Average Humidity in Annandale

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

In Annandale in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Annandale.

Maximum UV Index Levels in Annandale for October

The chart shows the monthly maximum UV Index (UVI) for Annandale 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 Annandale typically reaches 5, which falls under the moderate exposure category.

Data source: Annandale 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 Annandale Compares to Other Months

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

This table compares monthly weather conditions in Annandale, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (15°F)	21 mm (0.8 inches)	87%	low
February Weather	-9°C (16°F)	27 mm (1.0 inches)	90%	moderate
March Weather	0°C (32°F)	53 mm (2.1 inches)	85%	moderate
April Weather	6°C (42°F)	83 mm (3.3 inches)	84%	high
May Weather	15°C (59°F)	105 mm (4.1 inches)	78%	very high
June Weather	22°C (71°F)	74 mm (2.9 inches)	80%	very high
July Weather	23°C (74°F)	93 mm (3.7 inches)	81%	very high
August Weather	21°C (70°F)	149 mm (5.9 inches)	81%	very high
September Weather	17°C (63°F)	113 mm (4.5 inches)	81%	high
October Weather	9°C (48°F)	103 mm (4.0 inches)	84%	moderate
November Weather	0°C (32°F)	31 mm (1.2 inches)	88%	moderate
December Weather	-6°C (22°F)	44 mm (1.7 inches)	84%	low