October Weather in Salem, United States

Last updated: June 24, 2025

In October, the average temperature in Salem, United States is a pleasant 17°C (63°F). Expect the mercury to dip as low as 1°C (35°F) on cooler days, while it can also reach a toasty 33°C (92°F) at its peak. Prepare for some rain as well, with an average precipitation of 122 mm (4.8 in) spread over 11 days. With an average humidity of 78%, it's a month that feels both refreshing and vibrant.

October Temperature in Salem

In October in Salem, the average temperature is 17°C (63°F). Maximums can reach 33°C (92°F), while minimums can drop as low as 1°C (35°F). Be sure to pack layers to comfortably enjoy the varied temperatures during your travels.

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 17°C (63°F), with highs reaching up to 33°C (92°F) and lows dropping to around 1°C (35°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 122 mm (4.8 in) over a span of 11 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 122 mm (4.8 inches) of precipitation spread over approximately 11 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 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

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 78%, 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 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check 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 7, which falls under the 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	4°C (39°F)	102 mm (4.0 inches)	87%	moderate
February Weather	6°C (44°F)	192 mm (7.6 inches)	86%	high
March Weather	10°C (50°F)	149 mm (5.9 inches)	86%	high
April Weather	14°C (57°F)	147 mm (5.8 inches)	82%	very high
May Weather	20°C (68°F)	142 mm (5.6 inches)	82%	very high
June Weather	24°C (75°F)	162 mm (6.4 inches)	83%	extreme
July Weather	26°C (79°F)	119 mm (4.7 inches)	80%	extreme
August Weather	25°C (77°F)	120 mm (4.7 inches)	74%	very high
September Weather	22°C (73°F)	124 mm (4.9 inches)	71%	very high
October Weather	17°C (63°F)	122 mm (4.8 inches)	78%	high
November Weather	9°C (48°F)	84 mm (3.3 inches)	88%	moderate
December Weather	7°C (44°F)	145 mm (5.7 inches)	88%	moderate