July Weather in Grantham, United States

Last updated: June 24, 2025

In Grantham, United States, the average temperature in July hovers around 22°C (71°F), providing a pleasant climate for outdoor activities. Temperatures can vary from a minimum of 9°C (48°F) to a sizzling maximum of 36°C (97°F). Expect about 120 mm (4.7 in) of precipitation spread over 13 days, alongside an average humidity level of 67%, contributing to a lush and vibrant environment.

July Temperature in Grantham

In July in Grantham, the average temperature is 22°C (71°F). Maximum temperatures can reach 36°C (97°F), while minimums can drop as low as 9°C (48°F). This range makes Grantham an ideal destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates July temperature patterns in Grantham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grantham, July typically has an average temperature of 22°C (71°F), with highs reaching up to 36°C (97°F) and lows dropping to around 9°C (48°F).

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

July Precipitation in Grantham

In Grantham in July, the precipitation amount is 120 mm (4.7 in) spread over 13 days.

July Precipitation Trends in Grantham

The chart displays monthly precipitation patterns in Grantham, 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 Grantham, July typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 13 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

July Humidity in Grantham

In Grantham in July, humidity is 67%. With an average temperature of 22°C (71°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet slightly uncomfortable, as the air hangs thick, reminding travelers to stay hydrated and seek shade during the midday sun.

July Average Humidity in Grantham

This chart illustrates the average monthly humidity levels in Grantham, 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 Grantham 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 Grantham

In Grantham 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 Grantham.

Maximum UV Index Levels in Grantham for July

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

Data source: Grantham 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 Grantham Compares to Other Months

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

This table compares monthly weather conditions in Grantham, showing how July’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 (2.7 inches)	86%	moderate
February Weather	-4°C (25°F)	81 mm (3.2 inches)	84%	moderate
March Weather	0°C (32°F)	71 mm (2.8 inches)	82%	high
April Weather	6°C (44°F)	116 mm (4.6 inches)	80%	very high
May Weather	13°C (56°F)	78 mm (3.1 inches)	72%	very high
June Weather	19°C (66°F)	85 mm (3.4 inches)	72%	very high
July Weather	22°C (71°F)	120 mm (4.7 inches)	67%	very high
August Weather	21°C (69°F)	86 mm (3.4 inches)	66%	very high
September Weather	17°C (62°F)	64 mm (2.5 inches)	71%	high
October Weather	10°C (50°F)	132 mm (5.2 inches)	78%	moderate
November Weather	2°C (36°F)	100 mm (3.9 inches)	84%	moderate
December Weather	-3°C (27°F)	102 mm (4.0 inches)	81%	low