June Weather in Sumner, United States

Last updated: June 24, 2025

In Sumner, United States, the average temperature in June hovers around 25°C (77°F), with minimums dipping to 10°C (50°F) and maximums soaring to 36°C (96°F). Prepare for some rainfall, as the month sees 112 mm (4.4 in) of precipitation spread over 11 days, resulting in an average humidity of 83%. Enjoy the warmth, but don't forget your umbrella!

June Temperature in Sumner

In June in Sumner, the average temperature is 25°C (77°F). The maximum can reach 36°C (96°F) and the minimum can be as low as 10°C (50°F). Overall, it's a great time to visit for travelers who enjoy warm weather with occasional cooler nights.

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

The chart illustrates June temperature patterns in Sumner, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumner, June typically has an average temperature of 25°C (77°F), with highs reaching up to 36°C (96°F) and lows dropping to around 10°C (50°F).

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

June Precipitation in Sumner

In Sumner in June, the precipitation amount is 112 mm (4.4 in) that occurs over the course of 11 days.

June Precipitation Trends in Sumner

The chart displays monthly precipitation patterns in Sumner, 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 Sumner, June typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 11 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 Sumner

In Sumner in June humidity is 83%. With an average temperature of 25°C (77°F), this humidity feels like a warm, enveloping blanket, making it essential for travelers to stay hydrated and seek shade to enjoy their adventures comfortably.

June Average Humidity in Sumner

This chart illustrates the average monthly humidity levels in Sumner, 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 Sumner is approximately 83%, 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 Sumner

In Sumner in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Sumner.

Maximum UV Index Levels in Sumner for June

The chart shows the monthly maximum UV Index (UVI) for Sumner 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 Sumner typically reaches 11, which falls under the extreme exposure category.

Data source: Sumner 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 Sumner Compares to Other Months

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

This table compares monthly weather conditions in Sumner, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (33°F)	91 mm (3.6 inches)	84%	moderate
February Weather	2°C (37°F)	107 mm (4.2 inches)	82%	moderate
March Weather	8°C (47°F)	133 mm (5.2 inches)	84%	high
April Weather	13°C (56°F)	120 mm (4.7 inches)	83%	very high
May Weather	20°C (68°F)	133 mm (5.3 inches)	80%	very high
June Weather	25°C (77°F)	112 mm (4.4 inches)	83%	extreme
July Weather	26°C (80°F)	97 mm (3.8 inches)	82%	very high
August Weather	25°C (77°F)	92 mm (3.6 inches)	82%	very high
September Weather	22°C (73°F)	70 mm (2.7 inches)	79%	very high
October Weather	16°C (60°F)	100 mm (3.9 inches)	79%	high
November Weather	7°C (44°F)	102 mm (4.0 inches)	88%	moderate
December Weather	4°C (39°F)	95 mm (3.7 inches)	87%	moderate