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October Weather in Salem, United States

Last updated: June 24, 2025

In October, the average temperature in Salem, United States hovers around 14°C (57°F). Expect a wide range, with minimums dipping to -2°C (29°F) and maximums reaching up to 31°C (89°F). During this month, you can anticipate approximately 131 mm (5.2 in) of precipitation spread over 12 days, contributing to an average humidity level of 75%.

October Temperature in Salem

In October in Salem, the average temperature is 14°C (57°F). Maximum temperatures can reach 31°C (89°F), while minimums can drop as low as -2°C (29°F). Travelers should be prepared for a wide range of weather conditions during this time.

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 14°C (57°F), with highs reaching up to 31°C (89°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec323439495968747367574436
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 precipitation amount is 131 mm (5.2 in) spread over 12 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 131 mm (5.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec709095128111951581079613196133
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 75%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket enveloping you, making outdoor activities somewhat uncomfortable and travel a bit sluggish, as the air feels heavy and the heat lingers close to your skin.

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.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
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.
JanFebMarAprMayJunJulAugSepOctNovDec3568910998642
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 Weather0°C (32°F)70 mm (2.8 inches)84%moderate
February Weather1°C (34°F)90 mm (3.5 inches)84%moderate
March Weather4°C (39°F)95 mm (3.7 inches)82%high
April Weather9°C (49°F)128 mm (5.1 inches)79%very high
May Weather15°C (59°F)111 mm (4.4 inches)75%very high
June Weather20°C (69°F)95 mm (3.8 inches)78%very high
July Weather24°C (75°F)158 mm (6.2 inches)76%very high
August Weather23°C (74°F)107 mm (4.2 inches)76%very high
September Weather19°C (67°F)96 mm (3.8 inches)75%very high
October Weather14°C (57°F)131 mm (5.2 inches)75%high
November Weather7°C (44°F)96 mm (3.8 inches)80%moderate
December Weather2°C (36°F)133 mm (5.2 inches)80%low

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