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October Weather in Union City, United States

Last updated: June 24, 2025

In Union City, United States, the average temperature in October hovers around 12°C (53°F), with fluctuations that can see minimums dipping to 0°C (32°F) and maximums rising to 29°C (85°F). Prepare for a wet month, as precipitation amounts to 138 mm (5.4 in) over 17 days. The air is likely to feel quite humid, with an average humidity of 81%.

October Temperature in Union City

In October, in Union City, the average temperature is 12°C (53°F). Maximum temperatures can reach 29°C (85°F), while minimums can drop as low as 0°C (32°F). It's a great time to visit for those who enjoy mild weather with some variability, so pack layers to accommodate the temperature fluctuations!

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

The chart illustrates October temperature patterns in Union City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Union City, October typically has an average temperature of 12°C (53°F), with highs reaching up to 29°C (85°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec262835455866716963533832
Data source: Temperature data for Union City generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Union City

In Union City in October, the precipitation amount is 138 mm (5.4 in) spread over 17 days.

October Precipitation Trends in Union City

The chart displays monthly precipitation patterns in Union City, 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 City, October typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec10811310813514115016012194138130123
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Union City

In Union City in October, humidity is 81%. With an average temperature of 12°C (53°F), this humidity feels like a chilly dampness enveloping you, making outdoor activities uncomfortable and requiring layers to stay warm while you explore.

October Average Humidity in Union City

This chart illustrates the average monthly humidity levels in Union City, 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 City is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Union City

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

Maximum UV Index Levels in Union City for October

The chart shows the monthly maximum UV Index (UVI) for Union City 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 City typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Union City 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 City Compares to Other Months

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

This table compares monthly weather conditions in Union City, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)108 mm (4.2 inches)89%moderate
February Weather-2°C (29°F)113 mm (4.4 inches)90%moderate
March Weather2°C (35°F)108 mm (4.2 inches)89%high
April Weather7°C (46°F)134 mm (5.3 inches)88%very high
May Weather14°C (58°F)141 mm (5.6 inches)80%very high
June Weather19°C (67°F)150 mm (5.9 inches)79%very high
July Weather22°C (71°F)160 mm (6.3 inches)74%very high
August Weather20°C (69°F)121 mm (4.7 inches)64%very high
September Weather17°C (64°F)94 mm (3.7 inches)67%very high
October Weather12°C (53°F)138 mm (5.4 inches)81%high
November Weather3°C (39°F)130 mm (5.1 inches)89%moderate
December Weather0°C (32°F)123 mm (4.8 inches)88%low

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