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October Weather in Amherst, United States

Last updated: June 24, 2025

In Amherst, United States, the average temperature in October hovers around 9°C (49°F). Expect a chilly minimum of -5°C (24°F) and a warm maximum of 28°C (82°F). Be prepared for 106 mm (4.2 in) of precipitation spread over 13 days, contributing to an average humidity of 84%.

October Temperature in Amherst

In October in Amherst, the average temperature is 9°C (49°F), with maximums soaring up to 28°C (82°F) and minimums dipping as low as -5°C (24°F). This variety in temperatures makes it advisable to pack layers for your trip, ensuring you're comfortable whether you encounter warmth or chill.

October Weather in Amherst: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Amherst, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Amherst, October typically has an average temperature of 9°C (49°F), with highs reaching up to 28°C (82°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec181933435768726962483425
Data source: Temperature data for Amherst 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 Amherst

In Amherst in October, the precipitation amount is 106 mm (4.2 in) spread over a duration of 13 days.

October Precipitation Trends in Amherst

The chart displays monthly precipitation patterns in Amherst, 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 Amherst, October typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec385162102110113129137981064953
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Amherst

In Amherst in October, humidity is 84%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace, making travel uncomfortable as the dampness seeps into your clothes and lingers in the air, leaving you feeling cool yet clammy.

October Average Humidity in Amherst

This chart illustrates the average monthly humidity levels in Amherst, 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 Amherst is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%87%84%77%75%75%73%78%84%89%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Amherst

In Amherst 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 Amherst.

Maximum UV Index Levels in Amherst for October

The chart shows the monthly maximum UV Index (UVI) for Amherst 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 Amherst typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24589101097532
Data source: Amherst 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 Amherst Compares to Other Months

Weather in Amherst varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Amherst, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Amherst, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (19°F)38 mm (1.5 inches)89%low
February Weather-7°C (19°F)51 mm (2.0 inches)90%moderate
March Weather0°C (33°F)62 mm (2.4 inches)87%moderate
April Weather6°C (43°F)102 mm (4.0 inches)84%very high
May Weather14°C (57°F)110 mm (4.3 inches)77%very high
June Weather20°C (68°F)113 mm (4.5 inches)75%very high
July Weather22°C (72°F)129 mm (5.1 inches)74%very high
August Weather20°C (69°F)137 mm (5.4 inches)73%very high
September Weather17°C (62°F)98 mm (3.8 inches)78%high
October Weather9°C (49°F)106 mm (4.2 inches)84%moderate
November Weather1°C (34°F)49 mm (1.9 inches)89%moderate
December Weather-4°C (25°F)53 mm (2.1 inches)87%low

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