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October Weather in Salem, United States

Last updated: June 24, 2025

In Salem, United States, the average temperature in October hovers around 15°C (58°F). However, temperatures can vary significantly, with minimums dipping to -4°C (24°F) and maximums soaring to 33°C (91°F). Expect 112 mm (4.4 in) of precipitation spread over approximately 11 days, contributing to an average humidity of 72%.

October Temperature in Salem

In October in Salem, the average temperature is 15°C (58°F). Maximums can reach 33°C (91°F), while minimums can drop as low as -4°C (24°F). Travelers should be prepared for a wide range of temperatures 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 15°C (58°F), with highs reaching up to 33°C (91°F) and lows dropping to around -4°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec343748546574787571584540
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 112 mm (4.4 in) that occurs 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 112 mm (4.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec75961361531788484101591126961
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 72%. With an average temperature of 15°C (58°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities less comfortable and encouraging travelers to seek out shaded areas or cool indoor spaces.

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 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%81%80%80%83%83%76%69%68%72%83%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 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.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
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 Weather1°C (34°F)75 mm (3.0 inches)83%moderate
February Weather3°C (37°F)96 mm (3.8 inches)81%high
March Weather9°C (48°F)136 mm (5.3 inches)80%high
April Weather12°C (55°F)152 mm (6.0 inches)80%very high
May Weather18°C (66°F)178 mm (7.0 inches)83%very high
June Weather24°C (75°F)84 mm (3.3 inches)83%extreme
July Weather26°C (79°F)84 mm (3.3 inches)76%extreme
August Weather24°C (76°F)101 mm (4.0 inches)69%very high
September Weather22°C (72°F)59 mm (2.3 inches)68%very high
October Weather15°C (58°F)112 mm (4.4 inches)72%high
November Weather7°C (45°F)69 mm (2.7 inches)83%moderate
December Weather4°C (40°F)60 mm (2.4 inches)86%moderate

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