April Weather in Thomson, United States

Last updated: June 24, 2025

In April, the average temperature in Thomson, United States is a pleasant 18°C (65°F). However, be prepared for a range, as it can dip to a chilly 1°C (33°F) at its lowest and soar to a warm 33°C (91°F) at its peak. With an average precipitation of 105 mm (4.1 in) spread over about 8 days, it's wise to pack an umbrella. The air can be quite humid, with an average humidity of 81%, making for a naturally balmy atmosphere.

April Temperature in Thomson

In April in Thomson, the average temperature is 18°C (65°F). The maximum can reach 33°C (91°F), while the minimum can drop as low as 1°C (33°F). It's advisable to pack layers to accommodate the varied temperatures throughout the day.

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

The chart illustrates April temperature patterns in Thomson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Thomson, April typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (91°F) and lows dropping to around 1°C (33°F).

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

April Precipitation in Thomson

In Thomson in April, the precipitation amount is 105 mm (4.1 in) over the course of 8 days.

April Precipitation Trends in Thomson

The chart displays monthly precipitation patterns in Thomson, 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 Thomson, April typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 8 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 Thomson

In Thomson in April, humidity is 81%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air thick and sultry—a challenging environment for traveling.

April Average Humidity in Thomson

This chart illustrates the average monthly humidity levels in Thomson, 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 Thomson is approximately 81%, 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 Thomson

In Thomson in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Thomson.

Maximum UV Index Levels in Thomson for April

The chart shows the monthly maximum UV Index (UVI) for Thomson 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 Thomson typically reaches 10, which falls under the very high exposure category.

Data source: Thomson 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 Thomson Compares to Other Months

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

This table compares monthly weather conditions in Thomson, 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 (49°F)	94 mm (3.7 inches)	86%	moderate
February Weather	12°C (54°F)	117 mm (4.6 inches)	84%	high
March Weather	15°C (59°F)	82 mm (3.2 inches)	83%	very high
April Weather	18°C (65°F)	105 mm (4.1 inches)	81%	very high
May Weather	23°C (74°F)	104 mm (4.1 inches)	81%	extreme
June Weather	26°C (79°F)	105 mm (4.1 inches)	81%	extreme
July Weather	28°C (82°F)	110 mm (4.3 inches)	83%	extreme
August Weather	27°C (81°F)	135 mm (5.3 inches)	81%	very high
September Weather	25°C (78°F)	88 mm (3.5 inches)	82%	very high
October Weather	20°C (69°F)	106 mm (4.2 inches)	78%	very high
November Weather	13°C (55°F)	75 mm (3.0 inches)	86%	high
December Weather	10°C (51°F)	118 mm (4.7 inches)	89%	moderate