June Weather in Grafton, United States

Last updated: June 24, 2025

In June, the average temperature in Grafton, United States hovers around 19°C (66°F), offering a pleasant escape for visitors. However, be prepared for a temperature range that can dip to a minimum of 2°C (36°F) and soar up to a maximum of 35°C (95°F). While you enjoy your time, expect 91 mm (3.6 in) of precipitation spread over 12 days, contributing to an average humidity level of 72%.

June Temperature in Grafton

In June, in Grafton, the average temperature is 19°C (66°F). Maximums can reach 35°C (95°F), and minimums can be as low as 2°C (36°F). Be prepared for a wide range of temperatures while traveling, so pack accordingly!

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

The chart illustrates June 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, June typically has an average temperature of 19°C (66°F), with highs reaching up to 35°C (95°F) and lows dropping to around 2°C (36°F).

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

June Precipitation in Grafton

In Grafton in June, the precipitation amount is 91 mm (3.6 in) over a period of 12 days.

June Precipitation Trends in Grafton

The chart displays monthly precipitation patterns in Grafton, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Grafton, June typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

June Humidity in Grafton

In Grafton in June, humidity is 72%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace that can make even the lightest activities feel strenuous for traveling.

June Average Humidity in Grafton

This chart illustrates the average monthly humidity levels in Grafton, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Grafton is approximately 72%, offering insight into how humid the weather typically is during this month.

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

June UV Index in Grafton

In Grafton in June, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Grafton.

Maximum UV Index Levels in Grafton for June

The chart shows the monthly maximum UV Index (UVI) for Grafton in June, 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 June, the maximum UV index in Grafton typically reaches 10, which falls under the very high exposure category.

Data source: Grafton June 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 June 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 June’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 June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	70 mm (2.8 inches)	86%	moderate
February Weather	-4°C (25°F)	82 mm (3.2 inches)	84%	moderate
March Weather	0°C (32°F)	75 mm (2.9 inches)	82%	moderate
April Weather	6°C (44°F)	121 mm (4.8 inches)	80%	very high
May Weather	13°C (56°F)	83 mm (3.3 inches)	72%	very high
June Weather	19°C (66°F)	91 mm (3.6 inches)	72%	very high
July Weather	22°C (71°F)	125 mm (4.9 inches)	67%	very high
August Weather	21°C (69°F)	89 mm (3.5 inches)	66%	very high
September Weather	17°C (62°F)	65 mm (2.6 inches)	71%	high
October Weather	10°C (50°F)	129 mm (5.1 inches)	78%	moderate
November Weather	2°C (36°F)	106 mm (4.2 inches)	84%	moderate
December Weather	-3°C (26°F)	109 mm (4.3 inches)	81%	low