November Weather in Alton, United States

Last updated: June 24, 2025

In November, the average temperature in Alton, United States hovers around 2°C (36°F), with extremes that can dip to a brisk -17°C (2°F) or rise to a pleasant 23°C (74°F). Expect a fair amount of moisture, with 119 mm (4.7 in) of precipitation falling over approximately 11 days, and the air remains quite humid at an average of 85%.

November Temperature in Alton

In November in Alton, the average temperature is 2°C (36°F), with maximums reaching 23°C (74°F) and minimums dropping as low as -17°C (2°F). Travelers should be prepared for a wide range of temperatures, so it’s advisable to pack layers for both warm days and cold nights.

November Weather in Alton: Daily Temperature Highs, Lows, and Averages

The chart illustrates November temperature patterns in Alton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alton, November typically has an average temperature of 2°C (36°F), with highs reaching up to 23°C (74°F) and lows dropping to around -17°C (2°F).

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

November Precipitation in Alton

In Alton in November, the total precipitation amount is 119 mm (4.7 in), which occurs over the course of 11 days.

November Precipitation Trends in Alton

The chart displays monthly precipitation patterns in Alton, with values for each month alongside November’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how November’s conditions compare to those of other months. In Alton, November typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

November Humidity in Alton

In Alton in November, humidity is 85%. With an average temperature of 2°C (36°F), this humidity feels like an icy blanket clinging to your skin, making travel challenging as the cold dampness seeps into your bones and fogs your breath.

November Average Humidity in Alton

This chart illustrates the average monthly humidity levels in Alton, with November’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In November, average humidity in Alton is approximately 85%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for November generated using information from the Copernicus Climate Change Service.

November UV Index in Alton

In Alton in November, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Alton, you can check the information here.

Maximum UV Index Levels in Alton for November

The chart shows the monthly maximum UV Index (UVI) for Alton in November, 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 November, the maximum UV index in Alton typically reaches 3, which falls under the moderate exposure category.

Data source: Alton November 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 November Weather in Alton Compares to Other Months

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

This table compares monthly weather conditions in Alton, showing how November’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	90 mm (3.6 inches)	88%	low
February Weather	-5°C (23°F)	82 mm (3.2 inches)	88%	moderate
March Weather	-1°C (30°F)	72 mm (2.8 inches)	85%	moderate
April Weather	6°C (43°F)	125 mm (4.9 inches)	81%	high
May Weather	12°C (54°F)	98 mm (3.9 inches)	76%	very high
June Weather	18°C (64°F)	88 mm (3.5 inches)	74%	very high
July Weather	21°C (70°F)	96 mm (3.8 inches)	74%	very high
August Weather	20°C (69°F)	78 mm (3.1 inches)	74%	very high
September Weather	16°C (61°F)	76 mm (3.0 inches)	77%	high
October Weather	10°C (50°F)	119 mm (4.7 inches)	82%	moderate
November Weather	2°C (36°F)	119 mm (4.7 inches)	85%	moderate
December Weather	-4°C (26°F)	116 mm (4.6 inches)	84%	low