March Weather in Grafton, United States

Last updated: June 24, 2025

In March, the average temperature in Grafton, United States hovers around 6°C (44°F). However, be prepared for a wide range, as it can dip to a chilly -16°C (3°F) or soar up to a pleasant 26°C (80°F). During the month, you can expect about 122 mm (4.8 in) of precipitation spread over 15 days, with a high average humidity of 88%. Make sure to pack accordingly!

March Temperature in Grafton

In March in Grafton, the average temperature is 6°C (44°F). Maximum temperatures can reach 26°C (80°F), while minimums can drop as low as -16°C (3°F). Visitors should be prepared for a wide range of temperatures and pack accordingly for their trip.

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

The chart illustrates March temperature patterns in Grafton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grafton, March typically has an average temperature of 6°C (44°F), with highs reaching up to 26°C (80°F) and lows dropping to around -16°C (3°F).

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

March Precipitation in Grafton

In Grafton in March, the precipitation amount is 122 mm (4.8 in) over a span of 15 days.

March Precipitation Trends in Grafton

The chart displays monthly precipitation patterns in Grafton, 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 Grafton, March typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 15 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 Grafton

In Grafton in March humidity is 88%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures less inviting and requiring warm, layered clothing to stay comfortable while exploring.

March Average Humidity in Grafton

This chart illustrates the average monthly humidity levels in Grafton, 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 Grafton is approximately 88%, 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 Grafton

In Grafton in March, 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 Grafton.

Maximum UV Index Levels in Grafton for March

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

Data source: Grafton 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 Grafton Compares to Other Months

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

This table compares monthly weather conditions in Grafton, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	102 mm (4.0 inches)	88%	moderate
February Weather	3°C (38°F)	159 mm (6.2 inches)	88%	moderate
March Weather	6°C (44°F)	122 mm (4.8 inches)	88%	high
April Weather	11°C (53°F)	152 mm (6.0 inches)	86%	very high
May Weather	17°C (63°F)	160 mm (6.3 inches)	82%	very high
June Weather	20°C (69°F)	145 mm (5.7 inches)	84%	very high
July Weather	23°C (74°F)	115 mm (4.5 inches)	82%	very high
August Weather	22°C (72°F)	114 mm (4.5 inches)	73%	very high
September Weather	19°C (67°F)	113 mm (4.5 inches)	73%	very high
October Weather	14°C (58°F)	120 mm (4.7 inches)	81%	high
November Weather	6°C (43°F)	89 mm (3.5 inches)	89%	moderate
December Weather	3°C (38°F)	134 mm (5.3 inches)	86%	moderate