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October Weather in Hamilton, United States

Last updated: June 24, 2025

In Hamilton, United States, the average temperature in October hovers around 2°C (37°F). While the minimum can plummet to a chilly -28°C (-17°F), temperatures can soar to a maximum of 23°C (73°F) on warmer days. Expect a precipitation total of 85 mm (3.4 in) over the course of 14 days, accompanied by an average humidity level of 77%.

October Temperature in Hamilton

In October in Hamilton, the average temperature is 2°C (37°F). Maximum temperatures can reach 23°C (73°F), while minimum temperatures can drop as low as -28°C (-17°F). Be prepared for a wide range of temperatures when traveling during this month, and pack accordingly for both warm and cold weather.

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

The chart illustrates October temperature patterns in Hamilton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hamilton, October typically has an average temperature of 2°C (37°F), with highs reaching up to 23°C (73°F) and lows dropping to around -28°C (-17°F).
JanFebMarAprMayJunJulAugSepOctNovDec212130344354646252362720
Data source: Temperature data for Hamilton 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 Hamilton

In Hamilton in October, the precipitation amount is 85 mm (3.4 in) spread over 14 days, contributing to the region's overall climate patterns.

October Precipitation Trends in Hamilton

The chart displays monthly precipitation patterns in Hamilton, 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 Hamilton, October typically receives around 85 mm (3.4 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec6513882887694263245858188
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Hamilton

In Hamilton in October humidity is 77%. With an average temperature of 2°C (37°F), this humidity feels like a cold, damp chill that penetrates your clothes, making travel uncomfortable and brisk.

October Average Humidity in Hamilton

This chart illustrates the average monthly humidity levels in Hamilton, 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 Hamilton is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%89%85%80%78%77%66%67%77%89%95%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Hamilton

In Hamilton 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 Hamilton.

Maximum UV Index Levels in Hamilton for October

The chart shows the monthly maximum UV Index (UVI) for Hamilton 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 Hamilton typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246810101098532
Data source: Hamilton 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 Hamilton Compares to Other Months

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

This table compares monthly weather conditions in Hamilton, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)65 mm (2.6 inches)93%low
February Weather-6°C (21°F)138 mm (5.4 inches)92%moderate
March Weather-1°C (30°F)82 mm (3.2 inches)89%high
April Weather1°C (34°F)88 mm (3.4 inches)85%very high
May Weather6°C (43°F)76 mm (3.0 inches)80%very high
June Weather12°C (54°F)94 mm (3.7 inches)78%very high
July Weather18°C (64°F)26 mm (1.0 inches)77%very high
August Weather17°C (62°F)32 mm (1.2 inches)66%very high
September Weather11°C (53°F)45 mm (1.8 inches)67%very high
October Weather2°C (37°F)85 mm (3.4 inches)77%moderate
November Weather-3°C (27°F)81 mm (3.2 inches)89%moderate
December Weather-7°C (20°F)88 mm (3.5 inches)95%low

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