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October Weather in Hamilton, United States

Last updated: June 24, 2025

In Hamilton, United States, the average temperature in October is a pleasant 20°C (68°F). Temperatures can range from a cool 2°C (35°F) to a sweltering 37°C (99°F). Expect 119 mm (4.7 in) of precipitation over approximately 8 days, accompanied by a comfortable average humidity of 73%.

October Temperature in Hamilton

In October in Hamilton, the average temperature is 20°C (68°F). Maximums can reach 37°C (99°F), while minimums can drop as low as 2°C (35°F). It's advisable for travelers to be prepared for both warm days and chilly nights.

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 20°C (68°F), with highs reaching up to 37°C (99°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec485061667481858579685752
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 119 mm (4.7 in) over a span of 8 days.

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 119 mm (4.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec46758079144764480701194242
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 73%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making outdoor activities somewhat sticky, yet the atmosphere remains pleasant for leisurely strolls and sightseeing.

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 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%78%77%78%82%78%69%63%66%73%84%87%
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 is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101112121110864
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 Weather9°C (48°F)46 mm (1.8 inches)78%moderate
February Weather10°C (50°F)75 mm (2.9 inches)78%high
March Weather16°C (61°F)80 mm (3.1 inches)77%very high
April Weather19°C (66°F)79 mm (3.1 inches)78%very high
May Weather24°C (75°F)144 mm (5.7 inches)82%extreme
June Weather27°C (82°F)76 mm (3.0 inches)78%extreme
July Weather30°C (86°F)44 mm (1.7 inches)69%extreme
August Weather29°C (85°F)80 mm (3.2 inches)63%extreme
September Weather26°C (79°F)70 mm (2.8 inches)66%very high
October Weather20°C (68°F)119 mm (4.7 inches)73%very high
November Weather14°C (58°F)42 mm (1.7 inches)84%high
December Weather11°C (53°F)42 mm (1.6 inches)87%moderate

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