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August Weather in Merrill, United States

Last updated: June 24, 2025

In August, the average temperature in Merrill, United States is a pleasant 22°C (71°F). However, be prepared for a range, as temperatures can dip to a brisk 7°C (44°F) or soar to a sizzling 34°C (94°F). With 86 mm (3.4 in) of precipitation spread over 11 days, it's wise to pack an umbrella. The air is quite humid, averaging around 80%, so your comfort is key!

August Temperature in Merrill

In August in Merrill, the average temperature is 22°C (71°F), with maximums reaching up to 34°C (94°F) and minimums dropping as low as 7°C (44°F). This climate makes it an ideal time for outdoor adventures and enjoyable sightseeing.

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

The chart illustrates August 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, August typically has an average temperature of 22°C (71°F), with highs reaching up to 34°C (94°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec242535455969747164523731
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.

August Precipitation in Merrill

In Merrill in August, the precipitation amount is 86 mm (3.4 in), spread over 11 days.

August Precipitation Trends in Merrill

The chart displays monthly precipitation patterns in Merrill, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Merrill, August typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec565959861141147086961175962
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Merrill

In Merrill in August, humidity is 80%. With an average temperature of 22°C (71°F), this humidity feels like a warm, enveloping blanket, making travel slightly uncomfortable as skin becomes clammy and sweat clings to clothes.

August Average Humidity in Merrill

This chart illustrates the average monthly humidity levels in Merrill, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Merrill is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%86%80%80%80%81%80%84%90%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Merrill

In Merrill in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Merrill.

Maximum UV Index Levels in Merrill for August

The chart shows the monthly maximum UV Index (UVI) for Merrill in August, 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 August, the maximum UV index in Merrill typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Merrill August 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 August 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 August’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 August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)55 mm (2.2 inches)88%low
February Weather-4°C (26°F)59 mm (2.3 inches)87%moderate
March Weather2°C (35°F)59 mm (2.3 inches)85%moderate
April Weather7°C (46°F)86 mm (3.4 inches)86%very high
May Weather15°C (59°F)114 mm (4.5 inches)80%very high
June Weather20°C (69°F)114 mm (4.5 inches)80%very high
July Weather23°C (74°F)70 mm (2.7 inches)80%very high
August Weather22°C (71°F)86 mm (3.4 inches)80%very high
September Weather18°C (64°F)96 mm (3.8 inches)80%high
October Weather11°C (52°F)117 mm (4.6 inches)84%moderate
November Weather3°C (38°F)59 mm (2.3 inches)89%moderate
December Weather-1°C (31°F)61 mm (2.4 inches)86%low

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