April Weather in Calmar, United States

Last updated: June 24, 2025

In April, the average temperature in Calmar, United States hovers around 7°C (45°F), making it a month of considerable variation. Expect minimum chills of -11°C (13°F) and highs that can reach 26°C (80°F). The weather is relatively wet, with 80 mm (3.2 in) of precipitation spread over about 10 days, and an average humidity level of 83% adds to the overall dampness.

April Temperature in Calmar

In April in Calmar, the average temperature is 7°C (45°F), with maximums reaching 26°C (80°F) and minimums dropping as low as -11°C (13°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm and cold weather.

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

The chart illustrates April temperature patterns in Calmar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Calmar, April typically has an average temperature of 7°C (45°F), with highs reaching up to 26°C (80°F) and lows dropping to around -11°C (13°F).

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

April Precipitation in Calmar

In Calmar in April, the precipitation amount is 80 mm (3.2 in) over a span of 10 days.

April Precipitation Trends in Calmar

The chart displays monthly precipitation patterns in Calmar, 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 Calmar, April typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Calmar

In Calmar in April, humidity is 83%. With an average temperature of 7°C (45°F), this humidity feels like a chilly blanket wrapping around you, making travel somewhat uncomfortable as you navigate the dampness that settles in your clothes, leading to a heavy and muggy experience outdoors.

April Average Humidity in Calmar

This chart illustrates the average monthly humidity levels in Calmar, 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 Calmar is approximately 83%, 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 Calmar

In Calmar in April, 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 Calmar.

Maximum UV Index Levels in Calmar for April

The chart shows the monthly maximum UV Index (UVI) for Calmar 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 Calmar typically reaches 8, which falls under the very high exposure category.

Data source: Calmar 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 Calmar Compares to Other Months

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

This table compares monthly weather conditions in Calmar, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	39 mm (1.5 inches)	84%	moderate
February Weather	-7°C (20°F)	52 mm (2.0 inches)	85%	moderate
March Weather	2°C (35°F)	64 mm (2.5 inches)	84%	moderate
April Weather	7°C (45°F)	80 mm (3.2 inches)	83%	very high
May Weather	15°C (59°F)	155 mm (6.1 inches)	75%	very high
June Weather	22°C (71°F)	130 mm (5.1 inches)	79%	very high
July Weather	23°C (74°F)	106 mm (4.2 inches)	75%	very high
August Weather	21°C (70°F)	109 mm (4.3 inches)	69%	very high
September Weather	18°C (65°F)	123 mm (4.8 inches)	74%	very high
October Weather	10°C (50°F)	133 mm (5.2 inches)	79%	moderate
November Weather	2°C (35°F)	53 mm (2.1 inches)	88%	moderate
December Weather	-3°C (28°F)	38 mm (1.5 inches)	82%	low