July Weather in Grafton, United States

Last updated: June 24, 2025

In July, the average temperature in Grafton, United States hovers around 23°C (74°F), with a minimum of 12°C (54°F) and a maximum reaching up to 37°C (99°F). Expect about 150 mm (5.9 in) of precipitation spread over 14 days, accompanied by an average humidity of 67%. Embrace the warmth, but be prepared for occasional showers!

July Temperature in Grafton

In July in Grafton, the average temperature is 23°C (74°F). Maximums can reach 37°C (99°F), while minimums can drop to as low as 12°C (54°F). It's a great time for travelers to enjoy pleasant weather while exploring the area.

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

The chart illustrates July 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, July typically has an average temperature of 23°C (74°F), with highs reaching up to 37°C (99°F) and lows dropping to around 12°C (54°F).

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

July Precipitation in Grafton

In Grafton in July, the total precipitation amount is 150 mm (5.9 in), occurring over a span of 14 days.

July Precipitation Trends in Grafton

The chart displays monthly precipitation patterns in Grafton, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Grafton, July typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 14 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Grafton

In Grafton in July humidity is 67%. With an average temperature of 23°C (74°F), this humidity feels like a warm embrace, making outdoor exploration pleasant yet slightly sticky, perfect for leisurely strolls but requiring occasional breaks for hydration.

July Average Humidity in Grafton

This chart illustrates the average monthly humidity levels in Grafton, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Grafton is approximately 67%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Grafton

In Grafton in July, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Grafton.

Maximum UV Index Levels in Grafton for July

The chart shows the monthly maximum UV Index (UVI) for Grafton in July, 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 July, the maximum UV index in Grafton typically reaches 9, which falls under the very high exposure category.

Data source: Grafton July 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 July 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 July’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 July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	72 mm (2.8 inches)	86%	moderate
February Weather	0°C (32°F)	88 mm (3.5 inches)	84%	moderate
March Weather	3°C (37°F)	90 mm (3.5 inches)	82%	high
April Weather	9°C (48°F)	130 mm (5.1 inches)	80%	very high
May Weather	14°C (58°F)	94 mm (3.7 inches)	72%	very high
June Weather	20°C (68°F)	95 mm (3.7 inches)	72%	very high
July Weather	23°C (74°F)	150 mm (5.9 inches)	67%	very high
August Weather	22°C (73°F)	101 mm (4.0 inches)	66%	very high
September Weather	19°C (66°F)	93 mm (3.7 inches)	71%	high
October Weather	13°C (55°F)	141 mm (5.5 inches)	78%	high
November Weather	5°C (42°F)	101 mm (4.0 inches)	84%	moderate
December Weather	0°C (33°F)	123 mm (4.9 inches)	81%	low