April Weather in Salem, United States

Last updated: June 24, 2025

In Salem, United States, the average temperature in April hovers around 9°C (48°F). However, be prepared for temperature fluctuations, with a minimum of -4°C (25°F) and a maximum reaching up to 30°C (87°F). Expect 127 mm (5.0 in) of precipitation over approximately 12 days, and a notable average humidity of 80%, making for a potentially damp atmosphere during your stay.

April Temperature in Salem

In April in Salem, the average temperature is 9°C (48°F), with maximums reaching up to 30°C (87°F) and minimums dipping as low as -4°C (25°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates April temperature patterns in Salem, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Salem, April typically has an average temperature of 9°C (48°F), with highs reaching up to 30°C (87°F) and lows dropping to around -4°C (25°F).

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

April Precipitation in Salem

In Salem in April, the precipitation amount is 127 mm (5.0 in) occurring over the course of 12 days.

April Precipitation Trends in Salem

The chart displays monthly precipitation patterns in Salem, 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 Salem, April typically receives around 127 mm (5.0 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 Salem

In Salem in April humidity is 80%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel quite uncomfortable.

April Average Humidity in Salem

This chart illustrates the average monthly humidity levels in Salem, 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 Salem is approximately 80%, 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 Salem

In Salem 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 Salem.

Maximum UV Index Levels in Salem for April

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

Data source: Salem 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 Salem Compares to Other Months

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

This table compares monthly weather conditions in Salem, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	68 mm (2.7 inches)	86%	low
February Weather	0°C (32°F)	84 mm (3.3 inches)	84%	moderate
March Weather	3°C (37°F)	85 mm (3.3 inches)	82%	moderate
April Weather	9°C (48°F)	127 mm (5.0 inches)	80%	very high
May Weather	15°C (59°F)	82 mm (3.2 inches)	72%	very high
June Weather	20°C (69°F)	89 mm (3.5 inches)	72%	very high
July Weather	23°C (74°F)	131 mm (5.2 inches)	67%	very high
August Weather	23°C (74°F)	77 mm (3.0 inches)	66%	very high
September Weather	19°C (66°F)	73 mm (2.9 inches)	71%	high
October Weather	13°C (55°F)	128 mm (5.0 inches)	78%	high
November Weather	5°C (42°F)	95 mm (3.7 inches)	84%	moderate
December Weather	0°C (32°F)	121 mm (4.8 inches)	81%	low