March Weather in Granby, United States

Last updated: June 24, 2025

In March, the average temperature in Granby, United States hovers around -3°C (27°F). During this time, temperatures can dip as low as -23°C (-9°F) or rise to a maximum of 12°C (53°F). Expect about 58 mm (2.3 in) of precipitation spread over 12 days, with an average humidity of 81%.

March Temperature in Granby

In March in Granby, the average temperature is -3°C (27°F). The maximum can reach 12°C (53°F), while the minimum can drop as low as -23°C (-9°F). Travelers should prepare for a wide range of temperatures and pack accordingly to enjoy their trip comfortably.

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

The chart illustrates March temperature patterns in Granby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Granby, March typically has an average temperature of -3°C (27°F), with highs reaching up to 12°C (53°F) and lows dropping to around -23°C (-9°F).

Data source: Temperature data for Granby generated using information from the Copernicus Climate Change Service.

March Precipitation in Granby

In Granby in March, the precipitation amount is 58 mm (2.3 in) spread over 12 days.

March Precipitation Trends in Granby

The chart displays monthly precipitation patterns in Granby, 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 Granby, March typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in Granby

In Granby in March humidity is 81%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that seeps into your bones, making traveling uncomfortable and forcing you to bundle up tightly to fend off the cold dampness.

March Average Humidity in Granby

This chart illustrates the average monthly humidity levels in Granby, 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 Granby is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Granby

In Granby in March, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Granby.

Maximum UV Index Levels in Granby for March

The chart shows the monthly maximum UV Index (UVI) for Granby 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 Granby typically reaches 9, which falls under the very high exposure category.

Data source: Granby 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 Granby Compares to Other Months

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

This table compares monthly weather conditions in Granby, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (16°F)	38 mm (1.5 inches)	88%	moderate
February Weather	-8°C (19°F)	54 mm (2.1 inches)	87%	high
March Weather	-3°C (27°F)	58 mm (2.3 inches)	81%	very high
April Weather	0°C (32°F)	62 mm (2.4 inches)	76%	extreme
May Weather	4°C (39°F)	64 mm (2.5 inches)	66%	extreme
June Weather	11°C (52°F)	33 mm (1.3 inches)	58%	extreme
July Weather	15°C (59°F)	25 mm (1.0 inches)	52%	extreme
August Weather	14°C (58°F)	27 mm (1.1 inches)	56%	extreme
September Weather	11°C (51°F)	26 mm (1.0 inches)	65%	very high
October Weather	2°C (36°F)	50 mm (2.0 inches)	76%	high
November Weather	-4°C (24°F)	40 mm (1.6 inches)	82%	moderate
December Weather	-9°C (15°F)	41 mm (1.6 inches)	89%	moderate