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October Weather in Salem, United States

Last updated: June 24, 2025

The average temperature in Salem, United States during October is a comfortable 15°C (60°F). However, be prepared for a swing in conditions, with temperatures ranging from a chilly -2°C (29°F) to a warm 34°C (93°F). It's a month of moderate rainfall, with precipitation totaling around 110 mm (4.3 in) over 9 days, and the average humidity sitting at a notable 78%.

October Temperature in Salem

In October in Salem, the average temperature is 15°C (60°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop as low as -2°C (29°F). Be prepared for a wide range of temperatures, making it essential to pack for both warm days and chilly nights during 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 15°C (60°F), with highs reaching up to 34°C (93°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec374247566572777569604541
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 110 mm (4.3 in) over the course of 9 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 110 mm (4.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec6910574119144114601001121107495
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 78%. With an average temperature of 15°C (60°F), this humidity feels like a warm, damp embrace that can make outdoor activities a bit uncomfortable, highlighting the importance of staying hydrated and taking breaks in the shade while exploring.

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 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%84%83%83%79%66%68%78%89%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec36810101110109753
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 Weather3°C (37°F)69 mm (2.7 inches)87%moderate
February Weather6°C (42°F)105 mm (4.1 inches)87%high
March Weather8°C (47°F)74 mm (2.9 inches)86%very high
April Weather13°C (56°F)119 mm (4.7 inches)84%very high
May Weather18°C (65°F)144 mm (5.6 inches)83%very high
June Weather22°C (72°F)114 mm (4.5 inches)83%extreme
July Weather25°C (77°F)60 mm (2.4 inches)79%very high
August Weather24°C (75°F)99 mm (3.9 inches)66%very high
September Weather21°C (70°F)112 mm (4.4 inches)68%very high
October Weather15°C (60°F)110 mm (4.3 inches)78%high
November Weather7°C (45°F)74 mm (2.9 inches)89%moderate
December Weather5°C (41°F)95 mm (3.7 inches)86%moderate

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