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March Weather in Grand Junction, United States

Last updated: June 24, 2025

In Grand Junction, United States, the average temperature in March is a brisk 4°C (39°F). During this time, temperatures can dip to a chilling -21°C (-5°F) or rise to a warm 25°C (77°F). Expect about 76 mm (3.0 in) of precipitation over 8 days, contributing to an overall average humidity of 77%.

March Temperature in Grand Junction

In March in Grand Junction, the average temperature is 4°C (39°F). The maximum can reach 25°C (77°F), while the minimum can drop as low as -21°C (-5°F). This unpredictable weather means travelers should be prepared for a wide range of temperatures.

March Weather in Grand Junction: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Grand Junction, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grand Junction, March typically has an average temperature of 4°C (39°F), with highs reaching up to 25°C (77°F) and lows dropping to around -21°C (-5°F).
JanFebMarAprMayJunJulAugSepOctNovDec222339496274777368523830
Data source: Temperature data for Grand Junction 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 Grand Junction

In Grand Junction in March, the precipitation amount is 76 mm (3.0 in) spread over a duration of 8 days.

March Precipitation Trends in Grand Junction

The chart displays monthly precipitation patterns in Grand Junction, 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 Grand Junction, March typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec3239766616310184901081233637
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Grand Junction

In Grand Junction in March, humidity is 77%. With an average temperature of 4°C (39°F), this humidity feels like a brisk chill that seeps into your bones, making travel feel invigorating yet uncomfortable without proper layers to stay warm and dry.

March Average Humidity in Grand Junction

This chart illustrates the average monthly humidity levels in Grand Junction, 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 Grand Junction is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%80%77%78%77%81%81%77%73%75%85%83%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Grand Junction

In Grand Junction in March, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Grand Junction.

Maximum UV Index Levels in Grand Junction for March

The chart shows the monthly maximum UV Index (UVI) for Grand Junction 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 Grand Junction typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589111098643
Data source: Grand Junction 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 Grand Junction Compares to Other Months

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

This table compares monthly weather conditions in Grand Junction, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)32 mm (1.3 inches)78%moderate
February Weather-5°C (23°F)39 mm (1.5 inches)80%moderate
March Weather4°C (39°F)76 mm (3.0 inches)77%moderate
April Weather9°C (49°F)66 mm (2.6 inches)77%very high
May Weather17°C (62°F)163 mm (6.4 inches)77%very high
June Weather23°C (74°F)101 mm (4.0 inches)81%extreme
July Weather25°C (77°F)84 mm (3.3 inches)81%very high
August Weather23°C (74°F)90 mm (3.5 inches)77%very high
September Weather20°C (68°F)108 mm (4.2 inches)73%very high
October Weather11°C (52°F)122 mm (4.8 inches)75%high
November Weather3°C (38°F)36 mm (1.4 inches)85%moderate
December Weather-1°C (30°F)37 mm (1.4 inches)83%moderate

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