nomadseason

March Weather in Hillsboro, United States

Last updated: June 24, 2025

In March, the average temperature in Hillsboro, United States is a pleasant 16°C (60°F). However, be prepared for temperature swings, as it can dip to a chilly -3°C (27°F) or soar up to a balmy 31°C (89°F). Expect some rain too, with an average precipitation of 126 mm (5.0 in) spread over 12 days. The average humidity hovers around a comfortable 82%, making it a month full of varied weather experiences!

March Temperature in Hillsboro

In March in Hillsboro, the average temperature is 16°C (60°F), with maximums reaching 31°C (89°F) and minimums dipping as low as -3°C (27°F). It's advisable to pack for a wide range of weather conditions when traveling to Hillsboro during this month.

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 16°C (60°F), with highs reaching up to 31°C (89°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec485360647379818178685551
Data source: Temperature data for Hillsboro generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
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 126 mm (5.0 in) over the course of 12 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 126 mm (5.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec1091591261631321551091381009671121
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

March Humidity in Hillsboro

In Hillsboro in March humidity is 82%. With an average temperature of 16°C (60°F), this humidity feels like walking through a warm, thick blanket that clings to your skin, making every step feel heavier and travel more exhausting.

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 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%82%79%82%77%74%73%85%88%
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 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478111112111110864
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 Weather9°C (48°F)109 mm (4.3 inches)85%moderate
February Weather12°C (53°F)159 mm (6.3 inches)84%high
March Weather16°C (60°F)126 mm (5.0 inches)82%very high
April Weather18°C (64°F)163 mm (6.4 inches)82%extreme
May Weather23°C (74°F)132 mm (5.2 inches)82%extreme
June Weather26°C (79°F)155 mm (6.1 inches)79%extreme
July Weather27°C (81°F)109 mm (4.3 inches)82%extreme
August Weather27°C (81°F)138 mm (5.4 inches)77%extreme
September Weather25°C (78°F)100 mm (3.9 inches)74%very high
October Weather20°C (69°F)96 mm (3.8 inches)73%very high
November Weather13°C (55°F)70 mm (2.8 inches)85%high
December Weather11°C (52°F)121 mm (4.8 inches)88%moderate

Compare Hillsboro's Climate with Cities Worldwide