October Weather in Salem, United States

Last updated: June 24, 2025

In Salem, United States, the average temperature in October is a comfortable 15°C (60°F). However, be prepared for a range that can dip to 0°C (32°F) and soar up to 35°C (95°F). During this month, precipitation levels reach 103 mm (4.0 in) spread over 11 days, and the atmosphere is quite humid with an average humidity of 76%.

October Temperature in Salem

In October in Salem, the average temperature is 15°C (60°F), with maximums reaching 35°C (95°F) and minimums dropping as low as 0°C (32°F). Be sure to pack layers to accommodate the wide temperature range and enjoy all that Salem has to offer!

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 15°C (60°F), with highs reaching up to 35°C (95°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 total precipitation amount is 103 mm (4.0 in), occurring over the course 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 103 mm (4.0 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 76%. With an average temperature of 15°C (60°F), this humidity feels like a warm, damp blanket wrapping around you, making outdoor activities a bit more challenging and urging you to stay hydrated while exploring the area.

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 76%, 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 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Salem, you can refer to this 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 6, 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	1°C (35°F)	84 mm (3.3 inches)	87%	moderate
February Weather	3°C (38°F)	119 mm (4.7 inches)	85%	moderate
March Weather	8°C (47°F)	138 mm (5.4 inches)	86%	high
April Weather	13°C (55°F)	139 mm (5.5 inches)	84%	very high
May Weather	19°C (67°F)	138 mm (5.4 inches)	79%	very high
June Weather	24°C (75°F)	148 mm (5.8 inches)	82%	extreme
July Weather	26°C (78°F)	98 mm (3.9 inches)	79%	very high
August Weather	24°C (76°F)	103 mm (4.1 inches)	70%	very high
September Weather	22°C (71°F)	102 mm (4.0 inches)	69%	very high
October Weather	15°C (60°F)	103 mm (4.0 inches)	76%	high
November Weather	7°C (45°F)	93 mm (3.7 inches)	88%	moderate
December Weather	4°C (40°F)	105 mm (4.1 inches)	87%	moderate