October Weather in Merrill, United States

Last updated: June 24, 2025

In October, the average temperature in Merrill, United States hovers around 10°C (50°F), with fluctuations that can see lows of -6°C (21°F) and highs of 31°C (88°F). Expect a modest precipitation amount of 34 mm (1.3 in) during about 5 days of the month, along with an average humidity level of 67%.

October Temperature in Merrill

In October in Merrill, the average temperature is 10°C (50°F), with maximums reaching 31°C (88°F) and minimums dropping as low as -6°C (21°F). Be prepared for a wide range of temperatures when traveling to Merrill during this time.

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

The chart illustrates October temperature patterns in Merrill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Merrill, October typically has an average temperature of 10°C (50°F), with highs reaching up to 31°C (88°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec343541475565737262493933
Data source: Temperature data for Merrill 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 Merrill

In Merrill in October, the precipitation amount is 34 mm (1.3 in) over the course of 5 days.

October Precipitation Trends in Merrill

The chart displays monthly precipitation patterns in Merrill, 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 Merrill, October typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec6573644643174417344954
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Merrill

In Merrill in October humidity is 67%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill, making it essential for travelers to layer their clothing and prepare for a rather brisk experience while exploring the surroundings.

October Average Humidity in Merrill

This chart illustrates the average monthly humidity levels in Merrill, 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 Merrill is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%87%86%83%72%67%56%42%46%67%86%86%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Merrill

In Merrill in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Merrill, you can refer to this Hourly UV Index in Merrill.

Maximum UV Index Levels in Merrill for October

The chart shows the monthly maximum UV Index (UVI) for Merrill 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 Merrill typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579111111109643
Data source: Merrill 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 Merrill Compares to Other Months

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

This table compares monthly weather conditions in Merrill, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)65 mm (2.5 inches)86%moderate
February Weather2°C (36°F)73 mm (2.9 inches)87%moderate
March Weather5°C (41°F)64 mm (2.5 inches)86%high
April Weather8°C (47°F)46 mm (1.8 inches)83%very high
May Weather13°C (56°F)43 mm (1.7 inches)72%extreme
June Weather18°C (65°F)17 mm (0.7 inches)67%extreme
July Weather23°C (74°F)4 mm (0.2 inches)56%extreme
August Weather22°C (72°F)4 mm (0.2 inches)42%very high
September Weather17°C (63°F)17 mm (0.7 inches)46%very high
October Weather10°C (50°F)34 mm (1.3 inches)67%high
November Weather4°C (40°F)49 mm (1.9 inches)86%moderate
December Weather0°C (33°F)54 mm (2.1 inches)86%moderate

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