October Weather in Union, United States

Last updated: June 24, 2025

In October, the average temperature in Union, United States is a comfortable 19°C (67°F). Visitors can expect a range that dips to a chilly 0°C (33°F) at its lowest and soars to a warm 36°C (98°F) at its highest. With 97 mm (3.8 in) of precipitation over 9 days, it's wise to pack an umbrella. The air carries a pleasant average humidity of 79%, contributing to the overall climate experience.

October Temperature in Union

In October in Union, the average temperature is 19°C (67°F). The maximum can reach 36°C (98°F), and the minimum can be as low as 0°C (33°F). Be prepared for a wide range of temperatures and pack accordingly for your trip!

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 19°C (67°F), with highs reaching up to 36°C (98°F) and lows dropping to around 0°C (33°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 reaches 97 mm (3.8 in) over the course of 9 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 97 mm (3.8 inches) of precipitation spread over approximately 9 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 Union

In Union in October, humidity is 79%. With an average temperature of 19°C (67°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit more challenging, as the air is thick and can leave you feeling sluggish during outdoor adventures.

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 79%, 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 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 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 8, which falls under the very high 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	8°C (46°F)	95 mm (3.7 inches)	86%	moderate
February Weather	10°C (51°F)	123 mm (4.8 inches)	85%	high
March Weather	13°C (56°F)	90 mm (3.6 inches)	84%	very high
April Weather	17°C (63°F)	108 mm (4.2 inches)	82%	very high
May Weather	22°C (72°F)	115 mm (4.5 inches)	83%	extreme
June Weather	25°C (77°F)	90 mm (3.5 inches)	82%	extreme
July Weather	27°C (81°F)	113 mm (4.5 inches)	80%	extreme
August Weather	26°C (79°F)	127 mm (5.0 inches)	74%	very high
September Weather	24°C (76°F)	115 mm (4.5 inches)	75%	very high
October Weather	19°C (67°F)	97 mm (3.8 inches)	79%	very high
November Weather	11°C (53°F)	96 mm (3.8 inches)	87%	high
December Weather	9°C (49°F)	130 mm (5.1 inches)	87%	moderate