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March Weather in Hillsboro, United States

Last updated: June 24, 2025

In Hillsboro, United States during the month of March, the average temperature is a cool 8°C (47°F). While temperatures can dip as low as -17°C (1°F), they can also soar to a balmy 32°C (90°F). Expect 80 mm (3.1 in) of precipitation over 8 days, contributing to a moderate average humidity of 70%. Stay prepared for a mix of weather!

March Temperature in Hillsboro

In March in Hillsboro, the average temperature is 8°C (47°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as -17°C (1°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates March 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, March typically has an average temperature of 8°C (47°F), with highs reaching up to 32°C (90°F) and lows dropping to around -17°C (1°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.

March Precipitation in Hillsboro

In Hillsboro in March, the precipitation amount is 80 mm (3.1 in) over a period of 8 days.

March Precipitation Trends in Hillsboro

The chart displays monthly precipitation patterns in Hillsboro, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Hillsboro, March typically receives around 80 mm (3.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec32338073175967913880972929
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Hillsboro

In Hillsboro in March, humidity is 70%. With an average temperature of 8°C (47°F), this humidity feels quite chilly and damp, making it important for travelers to dress in layers and prepare for a potentially uncomfortable experience.

March Average Humidity in Hillsboro

This chart illustrates the average monthly humidity levels in Hillsboro, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Hillsboro is approximately 70%, 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 March generated using information from the Copernicus Climate Change Service.

March UV Index in Hillsboro

In Hillsboro in March, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Hillsboro.

Maximum UV Index Levels in Hillsboro for March

The chart shows the monthly maximum UV Index (UVI) for Hillsboro in March, 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 March, the maximum UV index in Hillsboro typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101111109743
Data source: Hillsboro March 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 March 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 March’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 March’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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