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March Weather in Hillsboro, United States

Last updated: June 24, 2025

In Hillsboro, United States, the average temperature in March hovers around 13°C (56°F). However, temperatures can vary widely, ranging from a chilly -4°C (25°F) to a warm 29°C (84°F). Expect about 175 mm (6.9 in) of precipitation over 13 days, with humidity levels reaching a high 85%.

March Temperature in Hillsboro

In March in Hillsboro, the average temperature is 13°C (56°F). Maximum temperatures can reach 29°C (84°F), while minimums can drop as low as -4°C (25°F). This range of temperatures makes Hillsboro a destination for both warm-weather enthusiasts and those who appreciate the chill, so be sure to pack for varying conditions.

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 13°C (56°F), with highs reaching up to 29°C (84°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec444956627278818076665148
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 175 mm (6.9 in) during a span of 13 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 175 mm (6.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec1141781751471051189910710210871144
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 85%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that wraps around you, making outdoor activities feel heavier and less enjoyable, as layers of clothing cling to the skin and breath becomes visible in the moist air.

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 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
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.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109754
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 Weather7°C (44°F)114 mm (4.5 inches)87%moderate
February Weather9°C (49°F)178 mm (7.0 inches)87%high
March Weather13°C (56°F)175 mm (6.9 inches)85%very high
April Weather17°C (62°F)147 mm (5.8 inches)82%very high
May Weather22°C (72°F)105 mm (4.1 inches)83%extreme
June Weather25°C (78°F)118 mm (4.7 inches)82%extreme
July Weather27°C (81°F)99 mm (3.9 inches)78%extreme
August Weather27°C (80°F)107 mm (4.2 inches)67%very high
September Weather24°C (76°F)102 mm (4.0 inches)64%very high
October Weather19°C (66°F)108 mm (4.2 inches)74%high
November Weather11°C (51°F)71 mm (2.8 inches)87%moderate
December Weather9°C (48°F)144 mm (5.7 inches)88%moderate

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