March Weather in Norwalk, United States

Last updated: June 24, 2025

In March, the average temperature in Norwalk, United States hovers around 2°C (35°F). While you might experience lows of -25°C (-13°F), sunny days could bring highs of 19°C (67°F). Be prepared for occasional rainfall, as 59 mm (2.3 in) of precipitation often falls over 9 days. With an average humidity of 84%, don’t forget to dress comfortably for the damp weather!

March Temperature in Norwalk

In March in Norwalk, the average temperature is 2°C (35°F). Maximum temperatures can reach 19°C (67°F), while the minimum can drop as low as -25°C (-13°F). Be prepared for a wide range of temperatures when traveling to Norwalk during this time.

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

The chart illustrates March 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, March typically has an average temperature of 2°C (35°F), with highs reaching up to 19°C (67°F) and lows dropping to around -25°C (-13°F).

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

March Precipitation in Norwalk

In Norwalk in March, the precipitation amount is 59 mm (2.3 in) over the course of 9 days.

March Precipitation Trends in Norwalk

The chart displays monthly precipitation patterns in Norwalk, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Norwalk, March typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

March Humidity in Norwalk

In Norwalk in March, humidity is 84%. With an average temperature of 2°C (35°F), this humidity feels like an uncomfortable chill that penetrates your bones, making outdoor travel quite brisk and uninviting.

March Average Humidity in Norwalk

This chart illustrates the average monthly humidity levels in Norwalk, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Norwalk is approximately 84%, offering insight into how humid the weather typically is during this month.

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

March UV Index in Norwalk

In Norwalk in March, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Norwalk.

Maximum UV Index Levels in Norwalk for March

The chart shows the monthly maximum UV Index (UVI) for Norwalk in March, 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 March, the maximum UV index in Norwalk typically reaches 5, which falls under the moderate exposure category.

Data source: Norwalk March 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 March 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 March’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 March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	40 mm (1.6 inches)	84%	low
February Weather	-6°C (21°F)	54 mm (2.1 inches)	85%	moderate
March Weather	2°C (35°F)	59 mm (2.3 inches)	84%	moderate
April Weather	7°C (45°F)	91 mm (3.6 inches)	83%	very high
May Weather	15°C (59°F)	141 mm (5.5 inches)	75%	very high
June Weather	21°C (70°F)	121 mm (4.8 inches)	79%	very high
July Weather	23°C (74°F)	110 mm (4.3 inches)	75%	very high
August Weather	21°C (70°F)	117 mm (4.6 inches)	69%	very high
September Weather	18°C (64°F)	112 mm (4.4 inches)	74%	very high
October Weather	10°C (50°F)	115 mm (4.5 inches)	79%	moderate
November Weather	2°C (35°F)	52 mm (2.0 inches)	88%	moderate
December Weather	-3°C (27°F)	46 mm (1.8 inches)	82%	low