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October Weather in Galena, United States

Last updated: June 24, 2025

In October, the average temperature in Galena, United States hovers around 16°C (60°F). You'll experience a wide range, with temperatures dipping to a chilly 0°C (32°F) and potentially soaring to a warm 35°C (96°F). Be prepared for about 100 mm (3.9 in) of precipitation spread over 10 days, and note that the humidity will average a comfortable 76%.

October Temperature in Galena

In October in Galena, the average temperature is 16°C (60°F). Maximums can reach 35°C (96°F), and minimums can be as low as 0°C (32°F). This variation makes it essential to pack for both warm and cool weather during your travels.

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

The chart illustrates October temperature patterns in Galena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Galena, October typically has an average temperature of 16°C (60°F), with highs reaching up to 35°C (96°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec353948566775787671604541
Data source: Temperature data for Galena 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 Galena

In Galena in October, the precipitation amount is 100 mm (3.9 in) over a span of 10 days.

October Precipitation Trends in Galena

The chart displays monthly precipitation patterns in Galena, 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 Galena, October typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec871271331371361501039711010090106
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Galena

In Galena in October humidity is 76%. With an average temperature of 16°C (60°F), this humidity feels like a warm embrace, making it somewhat uncomfortable for traveling, as the air can feel heavy and oppressive, potentially leading to fatigue and a constant need for hydration.

October Average Humidity in Galena

This chart illustrates the average monthly humidity levels in Galena, 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 Galena is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Galena

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

Maximum UV Index Levels in Galena for October

The chart shows the monthly maximum UV Index (UVI) for Galena 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 Galena typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35710101110108643
Data source: Galena 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 Galena Compares to Other Months

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

This table compares monthly weather conditions in Galena, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)87 mm (3.4 inches)87%moderate
February Weather4°C (39°F)127 mm (5.0 inches)85%moderate
March Weather9°C (48°F)133 mm (5.2 inches)86%high
April Weather13°C (56°F)137 mm (5.4 inches)84%very high
May Weather20°C (67°F)136 mm (5.4 inches)79%very high
June Weather24°C (75°F)150 mm (5.9 inches)82%extreme
July Weather26°C (79°F)103 mm (4.0 inches)79%very high
August Weather24°C (76°F)97 mm (3.8 inches)70%very high
September Weather22°C (72°F)110 mm (4.3 inches)69%very high
October Weather16°C (60°F)100 mm (3.9 inches)76%high
November Weather7°C (45°F)89 mm (3.5 inches)88%moderate
December Weather5°C (41°F)106 mm (4.2 inches)87%moderate

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