June Weather in Washington, United States

Last updated: June 24, 2025

In Washington, United States, the average temperature in June hovers around 19°C (66°F). You can expect a minimum temperature of 2°C (37°F) and a maximum that can reach up to 36°C (96°F). During this month, precipitation amounts to 90 mm (3.5 in) spread over approximately 12 days, with an average humidity of 72%. Prepare for a mix of pleasant days and a touch of rain!

June Temperature in Washington

In June in Washington, the average temperature is 19°C (66°F). Maximums can reach 36°C (96°F), while minimums can drop to as low as 2°C (37°F). Be prepared for a wide range of temperatures to make the most of your travel experience!

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

The chart illustrates June temperature patterns in Washington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Washington, June typically has an average temperature of 19°C (66°F), with highs reaching up to 36°C (96°F) and lows dropping to around 2°C (37°F).

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

June Precipitation in Washington

In Washington in June, the precipitation amount is 90 mm (3.5 in) spread over 12 days.

June Precipitation Trends in Washington

The chart displays monthly precipitation patterns in Washington, 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 Washington, June typically receives around 90 mm (3.5 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 Washington

In Washington 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 Washington

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

In Washington 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 Washington.

Maximum UV Index Levels in Washington for June

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

Data source: Washington 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 Washington Compares to Other Months

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

This table compares monthly weather conditions in Washington, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	71 mm (2.8 inches)	86%	moderate
February Weather	-3°C (26°F)	85 mm (3.3 inches)	84%	moderate
March Weather	0°C (32°F)	78 mm (3.1 inches)	82%	high
April Weather	7°C (44°F)	126 mm (5.0 inches)	80%	very high
May Weather	13°C (56°F)	83 mm (3.3 inches)	72%	very high
June Weather	19°C (66°F)	90 mm (3.5 inches)	72%	very high
July Weather	22°C (72°F)	129 mm (5.1 inches)	67%	very high
August Weather	21°C (70°F)	94 mm (3.7 inches)	66%	very high
September Weather	17°C (63°F)	78 mm (3.1 inches)	71%	high
October Weather	10°C (51°F)	132 mm (5.2 inches)	78%	high
November Weather	3°C (37°F)	105 mm (4.1 inches)	84%	moderate
December Weather	-3°C (27°F)	114 mm (4.5 inches)	81%	low