April Weather in Granby, United States

Last updated: June 24, 2025

In Granby, United States, the average temperature in April hovers around 0°C (32°F). Be prepared for a chilly range, with minimums dipping to -19°C (-1°F) and maximums reaching up to 14°C (57°F). Expect 62 mm (2.4 in) of precipitation spread over approximately 12 days, contributing to an average humidity of 76%. Bundle up and enjoy the atmosphere!

April Temperature in Granby

In April in Granby, the average temperature is 0°C (32°F). The maximum can reach 14°C (57°F) and the minimum can be as low as -19°C (-1°F). Be prepared for a wide range of temperatures while traveling, and pack accordingly for both chilly and mild days.

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

The chart illustrates April 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, April typically has an average temperature of 0°C (32°F), with highs reaching up to 14°C (57°F) and lows dropping to around -19°C (-1°F).

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

April Precipitation in Granby

In Granby in April, the precipitation amount is 62 mm (2.4 in) spread over 12 days.

April Precipitation Trends in Granby

The chart displays monthly precipitation patterns in Granby, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Granby, April typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 12 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Granby

In Granby in April, humidity is 76%. With an average temperature of 0°C (32°F), this humidity feels like a damp chill that clings to your skin, making it vital to layer up for any outdoor adventures.

April Average Humidity in Granby

This chart illustrates the average monthly humidity levels in Granby, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Granby is approximately 76%, offering insight into how humid the weather typically is during this month.

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

April UV Index in Granby

In Granby in April, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Granby.

Maximum UV Index Levels in Granby for April

The chart shows the monthly maximum UV Index (UVI) for Granby in April, 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 April, the maximum UV index in Granby typically reaches 12, which falls under the extreme exposure category.

Data source: Granby April 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 April 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 April’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 April’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