October Weather in Salem, United States

Last updated: June 24, 2025

In October, the average temperature in Salem, United States hovers around 18°C (65°F). While you might experience chilly nights with minimums dipping to -4°C (25°F), the days can warm up significantly, peaking at 34°C (93°F). Expect a moderate precipitation level of 32 mm (1.3 in) over 4 days, accompanied by a typical humidity rate of 75%.

October Temperature in Salem

In October in Salem, the average temperature is 18°C (65°F), with maximums reaching up to 34°C (93°F) and minimums dropping as low as -4°C (25°F). This diverse range of temperatures makes Salem a unique destination for travelers looking to experience both warm and cool weather.

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

The chart illustrates October 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, October typically has an average temperature of 18°C (65°F), with highs reaching up to 34°C (93°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.

October Precipitation in Salem

In Salem in October, the total precipitation amount is 32 mm (1.3 in), accumulated over a period of 4 days.

October Precipitation Trends in Salem

The chart displays monthly precipitation patterns in Salem, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Salem, October typically receives around 32 mm (1.3 inches) of precipitation spread over approximately 4 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Salem

In Salem in October, humidity is 75%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket that can make outdoor exploration feel a bit stifling, potentially leading to discomfort during travel activities.

October Average Humidity in Salem

This chart illustrates the average monthly humidity levels in Salem, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Salem is approximately 75%, offering insight into how humid the weather typically is during this month.

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

October UV Index in Salem

In Salem in October, 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 October

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

Data source: Salem October 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 October 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 October’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 October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	14 mm (0.6 inches)	79%	moderate
February Weather	9°C (49°F)	18 mm (0.7 inches)	79%	high
March Weather	14°C (57°F)	14 mm (0.6 inches)	65%	very high
April Weather	19°C (66°F)	4 mm (0.1 inches)	55%	extreme
May Weather	23°C (74°F)	4 mm (0.2 inches)	54%	extreme
June Weather	28°C (83°F)	22 mm (0.9 inches)	53%	extreme
July Weather	28°C (83°F)	30 mm (1.2 inches)	55%	extreme
August Weather	28°C (82°F)	27 mm (1.1 inches)	57%	extreme
September Weather	25°C (77°F)	28 mm (1.1 inches)	70%	extreme
October Weather	18°C (65°F)	32 mm (1.3 inches)	75%	very high
November Weather	12°C (55°F)	21 mm (0.8 inches)	83%	high
December Weather	8°C (46°F)	11 mm (0.4 inches)	82%	moderate