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March Weather in Grants Pass, United States

Last updated: June 24, 2025

In Grants Pass, United States, the average temperature in March hovers around 7°C (44°F). Expect chilly days, with minimum temperatures dipping to -5°C (23°F) and occasionally reaching a pleasant 21°C (71°F). Be prepared for 103 mm (4.0 in) of precipitation over approximately 14 days, accompanied by an average humidity level of 86%.

March Temperature in Grants Pass

In March in Grants Pass, the average temperature is 7°C (44°F), with maximums reaching up to 21°C (71°F) and minimums dipping as low as -5°C (23°F). This range of temperatures makes it essential for travelers to pack layers to stay comfortable throughout the day.

March Weather in Grants Pass: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Grants Pass, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grants Pass, March typically has an average temperature of 7°C (44°F), with highs reaching up to 21°C (71°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec394044505764717164534438
Data source: Temperature data for Grants Pass 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 Grants Pass

In Grants Pass in March, the precipitation amount is 103 mm (4.0 in) over a span of 14 days.

March Precipitation Trends in Grants Pass

The chart displays monthly precipitation patterns in Grants Pass, 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 Grants Pass, March typically receives around 103 mm (4.0 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec13815110388481915364186116
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Grants Pass

In Grants Pass in March, humidity is 86%. With an average temperature of 7°C (44°F), this humidity feels like a chilly, damp blanket wrapping around you, making outdoor activities uncomfortable and travel quite uninviting.

March Average Humidity in Grants Pass

This chart illustrates the average monthly humidity levels in Grants Pass, 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 Grants Pass is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%86%83%83%83%78%67%66%77%87%87%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Grants Pass

In Grants Pass in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Grants Pass, you can refer to this Hourly UV Index in Grants Pass.

Maximum UV Index Levels in Grants Pass for March

The chart shows the monthly maximum UV Index (UVI) for Grants Pass 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 Grants Pass typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468101110108642
Data source: Grants Pass 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 Grants Pass Compares to Other Months

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

This table compares monthly weather conditions in Grants Pass, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)138 mm (5.4 inches)84%moderate
February Weather4°C (40°F)151 mm (5.9 inches)85%moderate
March Weather7°C (44°F)103 mm (4.0 inches)86%high
April Weather10°C (50°F)88 mm (3.5 inches)83%very high
May Weather14°C (57°F)48 mm (1.9 inches)83%very high
June Weather18°C (65°F)19 mm (0.7 inches)83%extreme
July Weather22°C (71°F)1 mm (0.0 inches)78%very high
August Weather22°C (71°F)5 mm (0.2 inches)67%very high
September Weather18°C (64°F)36 mm (1.4 inches)66%very high
October Weather12°C (53°F)41 mm (1.6 inches)77%high
November Weather7°C (44°F)86 mm (3.4 inches)87%moderate
December Weather3°C (38°F)116 mm (4.6 inches)87%low

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