October Weather in Norwalk, United States

Last updated: June 24, 2025

In October, the average temperature in Norwalk, United States hovers around 20°C (69°F). Temperatures can swing from a chilly 9°C (48°F) to a scorching 39°C (103°F). With an average humidity of 67%, the climate is quite pleasant, although you might encounter a bit of moisture, as precipitation totals 10 mm (0.4 in) over 1 day.

October Temperature in Norwalk

In October in Norwalk, the average temperature is 20°C (69°F). Maximum temperatures can reach 39°C (103°F), while minimum temperatures can drop as low as 9°C (48°F). Be prepared for a wide range of temperatures and pack accordingly for your travels.

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

The chart illustrates October temperature patterns in Norwalk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Norwalk, October typically has an average temperature of 20°C (69°F), with highs reaching up to 39°C (103°F) and lows dropping to around 9°C (48°F).

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

October Precipitation in Norwalk

In Norwalk in October, the precipitation amount is 10 mm (0.4 in) over the course of 1 day.

October Precipitation Trends in Norwalk

The chart displays monthly precipitation patterns in Norwalk, 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 Norwalk, October typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 1 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 Norwalk

In Norwalk in October, humidity is 67%. With an average temperature of 20°C (69°F), this humidity feels like a warm, gentle embrace that clings to your skin, creating a comfortable yet slightly sticky atmosphere that can be refreshing while exploring the sights, provided you stay hydrated and take breaks in the shade.

October Average Humidity in Norwalk

This chart illustrates the average monthly humidity levels in Norwalk, 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 Norwalk is approximately 67%, 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 Norwalk

In Norwalk in October, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Norwalk.

Maximum UV Index Levels in Norwalk for October

The chart shows the monthly maximum UV Index (UVI) for Norwalk 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 Norwalk typically reaches 7, which falls under the high exposure category.

Data source: Norwalk 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 Norwalk Compares to Other Months

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

This table compares monthly weather conditions in Norwalk, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	75 mm (3.0 inches)	74%	moderate
February Weather	13°C (56°F)	63 mm (2.5 inches)	79%	high
March Weather	14°C (58°F)	67 mm (2.7 inches)	75%	very high
April Weather	17°C (63°F)	23 mm (0.9 inches)	70%	very high
May Weather	18°C (65°F)	16 mm (0.6 inches)	70%	very high
June Weather	21°C (70°F)	3 mm (0.1 inches)	72%	extreme
July Weather	24°C (76°F)	2 mm (0.1 inches)	73%	extreme
August Weather	25°C (76°F)	2 mm (0.1 inches)	69%	very high
September Weather	23°C (74°F)	4 mm (0.1 inches)	68%	very high
October Weather	20°C (69°F)	10 mm (0.4 inches)	67%	high
November Weather	17°C (62°F)	20 mm (0.8 inches)	68%	moderate
December Weather	13°C (56°F)	72 mm (2.8 inches)	71%	moderate