October Weather in Salem, United States

Last updated: June 24, 2025

In Salem, United States, the average temperature in October typically hovers around 17°C (62°F). However, temperatures can swing from a chilly 0°C (32°F) to a sweltering 34°C (94°F). Expect approximately 151 mm (5.9 in) of precipitation spread across about 10 days, and feel the moisture in the air with an average humidity of 79%.

October Temperature in Salem

In October in Salem, the average temperature is 17°C (62°F). Maximums can reach 34°C (94°F), while minimums can drop as low as 0°C (32°F). Be prepared for a range of temperatures and pack accordingly for 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 (62°F), with highs reaching up to 34°C (94°F) and lows dropping to around 0°C (32°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 precipitation amount is 151 mm (5.9 in) over a span of 10 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 151 mm (5.9 inches) of precipitation spread over approximately 10 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 79%. With an average temperature of 17°C (62°F), this humidity feels like a warm blanket wrapping around you, making strolling through the streets a bit heavier but still comfortably refreshing for travelers.

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 79%, 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	5°C (41°F)	97 mm (3.8 inches)	86%	moderate
February Weather	8°C (46°F)	120 mm (4.7 inches)	85%	high
March Weather	10°C (51°F)	100 mm (3.9 inches)	84%	very high
April Weather	15°C (59°F)	137 mm (5.4 inches)	82%	very high
May Weather	19°C (67°F)	137 mm (5.4 inches)	83%	very high
June Weather	23°C (73°F)	81 mm (3.2 inches)	82%	extreme
July Weather	25°C (78°F)	66 mm (2.6 inches)	80%	extreme
August Weather	24°C (76°F)	95 mm (3.7 inches)	74%	very high
September Weather	22°C (72°F)	128 mm (5.0 inches)	75%	very high
October Weather	17°C (62°F)	151 mm (5.9 inches)	79%	very high
November Weather	9°C (49°F)	84 mm (3.3 inches)	87%	moderate
December Weather	7°C (44°F)	116 mm (4.6 inches)	87%	moderate