March Weather in Grafton, United States

Last updated: June 24, 2025

In March, the average temperature in Grafton, United States hovers around 8°C (46°F), with extremes ranging from a chilly -17°C (2°F) to a balmy 27°C (81°F). Expect 131 mm (5.1 in) of precipitation spread over 11 days, contributing to an average humidity of 80%. Prepare for a mix of cool and wet weather!

March Temperature in Grafton

In March in Grafton, the average temperature is 8°C (46°F), with maximums reaching up to 27°C (81°F) and minimums dropping as low as -17°C (2°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

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 8°C (46°F), with highs reaching up to 27°C (81°F) and lows dropping to around -17°C (2°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 131 mm (5.1 in) over the course of 11 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 131 mm (5.1 inches) of precipitation spread over approximately 11 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 80%. With an average temperature of 8°C (46°F), this humidity feels like traveling through a damp and chilly mist, making even a short walk feel heavy and uncomfortable.

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 80%, 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 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Grafton, you can refer to this 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 6, 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 (32°F)	70 mm (2.8 inches)	82%	moderate
February Weather	1°C (34°F)	77 mm (3.0 inches)	80%	moderate
March Weather	8°C (46°F)	131 mm (5.1 inches)	80%	high
April Weather	12°C (55°F)	119 mm (4.7 inches)	80%	very high
May Weather	19°C (67°F)	147 mm (5.8 inches)	82%	very high
June Weather	25°C (76°F)	93 mm (3.6 inches)	83%	extreme
July Weather	26°C (79°F)	94 mm (3.7 inches)	81%	extreme
August Weather	24°C (76°F)	123 mm (4.9 inches)	80%	very high
September Weather	22°C (72°F)	66 mm (2.6 inches)	76%	very high
October Weather	15°C (59°F)	100 mm (3.9 inches)	76%	high
November Weather	6°C (44°F)	66 mm (2.6 inches)	85%	moderate
December Weather	3°C (38°F)	51 mm (2.0 inches)	86%	moderate