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October Weather in Grundy, United States

Last updated: June 24, 2025

In October, the average temperature in Grundy, United States is a mild 15°C (59°F). Visitors can expect a temperature range that varies from a chilly -2°C (30°F) to a warm 33°C (91°F). With an average precipitation of 130 mm (5.1 in) over 11 days, and a relative humidity of 78%, it's a month where both sunshine and showers are likely to make an appearance.

October Temperature in Grundy

In October, in Grundy, the average temperature is 15°C (59°F). Maximum temperatures can reach 33°C (91°F), while minimums can drop as low as -2°C (30°F). Travelers should be prepared for a wide range of weather conditions, from warm sunny days to colder nights.

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

The chart illustrates October temperature patterns in Grundy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grundy, October typically has an average temperature of 15°C (59°F), with highs reaching up to 33°C (91°F) and lows dropping to around -2°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec364247556470747268594541
Data source: Temperature data for Grundy 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 Grundy

In Grundy in October, the total precipitation amount is 130 mm (5.1 in) occurring over 11 days.

October Precipitation Trends in Grundy

The chart displays monthly precipitation patterns in Grundy, 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 Grundy, October typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec9816812614313815210712410513083129
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Grundy

In Grundy in October, humidity is 78%. With an average temperature of 15°C (59°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities a bit more tiring and requiring frequent breaks for hydration as you explore the area.

October Average Humidity in Grundy

This chart illustrates the average monthly humidity levels in Grundy, 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 Grundy 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 Grundy

In Grundy 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 Grundy.

Maximum UV Index Levels in Grundy for October

The chart shows the monthly maximum UV Index (UVI) for Grundy 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 Grundy typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
Data source: Grundy 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 Grundy Compares to Other Months

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

This table compares monthly weather conditions in Grundy, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (37°F)98 mm (3.8 inches)87%moderate
February Weather5°C (42°F)168 mm (6.6 inches)87%high
March Weather8°C (47°F)126 mm (5.0 inches)86%very high
April Weather13°C (55°F)143 mm (5.6 inches)84%very high
May Weather18°C (64°F)138 mm (5.4 inches)83%extreme
June Weather21°C (70°F)152 mm (6.0 inches)83%extreme
July Weather23°C (74°F)107 mm (4.2 inches)79%extreme
August Weather22°C (72°F)124 mm (4.9 inches)66%very high
September Weather20°C (68°F)105 mm (4.1 inches)68%very high
October Weather15°C (59°F)130 mm (5.1 inches)78%high
November Weather7°C (45°F)82 mm (3.2 inches)89%moderate
December Weather5°C (41°F)129 mm (5.1 inches)86%moderate

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