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June Weather in Hillsboro, United States

Last updated: June 24, 2025

In June, the average temperature in Hillsboro, United States is a pleasant 25°C (78°F). However, temperatures can fluctuate significantly, ranging from a cool 11°C (52°F) to a scorching 39°C (102°F). Prepare for some wet days, as precipitation averages around 95 mm (3.8 in) over 9 days, and don't forget to stay hydrated with an average humidity level of 82%.

June Temperature in Hillsboro

In June in Hillsboro, the average temperature is 25°C (78°F). Maximums can reach 39°C (102°F) and minimums can be as low as 11°C (52°F). It's an ideal time for travelers to enjoy warm days and comfortable evenings, so be sure to pack accordingly!

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

The chart illustrates June temperature patterns in Hillsboro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hillsboro, June typically has an average temperature of 25°C (78°F), with highs reaching up to 39°C (102°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec333347556577807772574538
Data source: Temperature data for Hillsboro generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Hillsboro

In Hillsboro in June, the total precipitation amount is 95 mm (3.8 in) over the course of 9 days.

June Precipitation Trends in Hillsboro

The chart displays monthly precipitation patterns in Hillsboro, 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 Hillsboro, June typically receives around 95 mm (3.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec32338073175967913880972929
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Hillsboro

In Hillsboro in June, humidity is 82%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities a bit more challenging and encouraging you to seek shade or a cool spot during your travels.

June Average Humidity in Hillsboro

This chart illustrates the average monthly humidity levels in Hillsboro, 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 Hillsboro is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%70%73%82%82%81%78%71%71%81%84%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Hillsboro

In Hillsboro 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 Hillsboro.

Maximum UV Index Levels in Hillsboro for June

The chart shows the monthly maximum UV Index (UVI) for Hillsboro 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 Hillsboro typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101111109743
Data source: Hillsboro 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 Hillsboro Compares to Other Months

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

This table compares monthly weather conditions in Hillsboro, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)32 mm (1.3 inches)76%moderate
February Weather1°C (34°F)33 mm (1.3 inches)77%high
March Weather8°C (47°F)80 mm (3.1 inches)70%high
April Weather13°C (55°F)73 mm (2.9 inches)73%very high
May Weather19°C (66°F)175 mm (6.9 inches)82%very high
June Weather25°C (78°F)95 mm (3.8 inches)82%extreme
July Weather27°C (80°F)79 mm (3.1 inches)81%extreme
August Weather25°C (77°F)138 mm (5.4 inches)78%very high
September Weather22°C (72°F)80 mm (3.1 inches)71%very high
October Weather14°C (57°F)97 mm (3.8 inches)71%high
November Weather7°C (45°F)29 mm (1.1 inches)81%moderate
December Weather3°C (38°F)29 mm (1.1 inches)84%moderate

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