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June Weather in Mercer, United States

Last updated: June 24, 2025

In June, the average temperature in Mercer, United States hovers around 18°C (65°F). Seasonal variations can be quite dramatic, with minimums dipping to 3°C (38°F) and soaring to maximums of 34°C (93°F). Expect 121 mm (4.8 in) of precipitation over 13 days, contributing to an average humidity of 71%.

June Temperature in Mercer

In June in Mercer, the average temperature is 18°C (65°F). Maximums can reach 34°C (93°F), and minimums can be as low as 3°C (38°F). This makes it a great time to explore outdoor activities while being prepared for both warm days and cooler nights.

June Weather in Mercer: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Mercer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mercer, June typically has an average temperature of 18°C (65°F), with highs reaching up to 34°C (93°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec141427375465696558442920
Data source: Temperature data for Mercer 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.

June Precipitation in Mercer

In Mercer in June, the total precipitation amount is 121 mm (4.8 in) over the course of 13 days.

June Precipitation Trends in Mercer

The chart displays monthly precipitation patterns in Mercer, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Mercer, June typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec36515392100121110126981185871
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Mercer

In Mercer in June humidity is 71%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making it a bit sticky and muggy, which can be slightly uncomfortable for traveling, especially if you're engaging in outdoor activities or exploring the city on foot.

June Average Humidity in Mercer

This chart illustrates the average monthly humidity levels in Mercer, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Mercer is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%89%85%76%71%70%71%73%82%88%91%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Mercer

In Mercer in June, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Mercer.

Maximum UV Index Levels in Mercer for June

The chart shows the monthly maximum UV Index (UVI) for Mercer in June, 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 June, the maximum UV index in Mercer typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457810987532
Data source: Mercer June 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 June Weather in Mercer Compares to Other Months

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

This table compares monthly weather conditions in Mercer, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (14°F)36 mm (1.4 inches)93%low
February Weather-10°C (14°F)51 mm (2.0 inches)93%moderate
March Weather-3°C (27°F)53 mm (2.1 inches)89%moderate
April Weather3°C (37°F)92 mm (3.6 inches)85%high
May Weather12°C (54°F)100 mm (3.9 inches)76%very high
June Weather18°C (65°F)121 mm (4.8 inches)71%very high
July Weather20°C (69°F)110 mm (4.3 inches)70%very high
August Weather18°C (65°F)126 mm (5.0 inches)71%very high
September Weather14°C (58°F)98 mm (3.9 inches)73%high
October Weather7°C (44°F)118 mm (4.7 inches)81%moderate
November Weather-2°C (29°F)58 mm (2.3 inches)87%moderate
December Weather-7°C (20°F)70 mm (2.8 inches)91%low

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