October Weather in Union, United States

Last updated: June 24, 2025

In October, the average temperature in Union, United States hovers around 11°C (52°F), making it a mild month. Expect temperatures to range from a cool 1°C (35°F) to a pleasant 24°C (75°F). However, be prepared for some rain, as precipitation can reach 168 mm (6.6 in) over about 14 days. With average humidity levels at a high 83%, don't forget to bring an umbrella and dress accordingly!

October Temperature in Union

In October in Union, the average temperature is 11°C (52°F), with maximums reaching 24°C (75°F) and minimums dropping as low as 1°C (35°F). This moderate climate makes Union an ideal destination for travelers looking to enjoy outdoor activities without extreme heat or cold.

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

The chart illustrates October temperature patterns in Union, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Union, October typically has an average temperature of 11°C (52°F), with highs reaching up to 24°C (75°F) and lows dropping to around 1°C (35°F).

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

October Precipitation in Union

In Union in October, the total precipitation amount is 168 mm (6.6 in) over a span of 14 days.

October Precipitation Trends in Union

The chart displays monthly precipitation patterns in Union, 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 Union, October typically receives around 168 mm (6.6 inches) of precipitation spread over approximately 14 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 Union

In Union in October humidity is 83%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable, often leading travelers to seek shelter indoors or to dress in layered clothing to stay warm while exploring the area.

October Average Humidity in Union

This chart illustrates the average monthly humidity levels in Union, 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 Union is approximately 83%, 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 Union

In Union 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 Union.

Maximum UV Index Levels in Union for October

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

Data source: Union 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 Union Compares to Other Months

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

This table compares monthly weather conditions in Union, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	256 mm (10.1 inches)	86%	low
February Weather	5°C (41°F)	171 mm (6.7 inches)	84%	moderate
March Weather	7°C (45°F)	148 mm (5.8 inches)	85%	moderate
April Weather	10°C (49°F)	124 mm (4.9 inches)	83%	high
May Weather	13°C (56°F)	60 mm (2.4 inches)	84%	very high
June Weather	16°C (61°F)	49 mm (1.9 inches)	84%	very high
July Weather	19°C (66°F)	9 mm (0.4 inches)	82%	very high
August Weather	19°C (66°F)	14 mm (0.6 inches)	73%	very high
September Weather	16°C (61°F)	95 mm (3.7 inches)	74%	high
October Weather	11°C (52°F)	168 mm (6.6 inches)	83%	moderate
November Weather	8°C (47°F)	243 mm (9.6 inches)	86%	moderate
December Weather	5°C (42°F)	250 mm (9.9 inches)	87%	low