October Weather in Salem, United States

Last updated: June 24, 2025

In October, the average temperature in Salem, United States hovers around 12°C (54°F). Expect a range from a chilly -2°C (29°F) to a warm 28°C (82°F). During this month, the region sees about 82 mm (3.2 in) of precipitation over 10 days, contributing to an average humidity of 81%. Stay prepared for a mix of weather as you explore!

October Temperature in Salem

In October in Salem, the average temperature is 12°C (54°F), with maximums reaching 28°C (82°F) and minimums dropping as low as -2°C (29°F). This makes it essential for travelers to pack layers to stay comfortable throughout the day.

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 12°C (54°F), with highs reaching up to 28°C (82°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec434247525865717165544742
Data source: Temperature data for Salem generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Salem

In Salem in October, the total precipitation amount is 82 mm (3.2 in) observed 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 82 mm (3.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec1411601161014734345382124173
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Salem

In Salem in October humidity is 81%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket enveloping you, making travel sluggish and uncomfortable as you battle the stickiness while trying to enjoy your surroundings.

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 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%85%83%83%84%82%74%71%81%87%87%
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 reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, 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 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23579101097532
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.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)141 mm (5.5 inches)85%low
February Weather6°C (43°F)159 mm (6.3 inches)84%moderate
March Weather8°C (47°F)116 mm (4.6 inches)85%moderate
April Weather11°C (52°F)101 mm (4.0 inches)83%high
May Weather15°C (59°F)47 mm (1.9 inches)83%very high
June Weather18°C (65°F)33 mm (1.3 inches)83%very high
July Weather22°C (71°F)3 mm (0.1 inches)82%very high
August Weather22°C (72°F)4 mm (0.2 inches)74%very high
September Weather18°C (65°F)53 mm (2.1 inches)71%high
October Weather12°C (54°F)82 mm (3.2 inches)81%moderate
November Weather9°C (48°F)124 mm (4.9 inches)87%moderate
December Weather6°C (42°F)173 mm (6.8 inches)87%low

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