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June Weather in Potomac, United States

Last updated: June 24, 2025

In Potomac, United States, the average temperature in June is a pleasant 23°C (74°F). However, temperatures can vary significantly, ranging from a minimum of 10°C (50°F) to a maximum of 35°C (95°F). Be prepared for some rain, as the area receives an average precipitation of 112 mm (4.4 in) over 12 days during the month. With an average humidity of 82%, make sure to stay hydrated and comfortable while exploring!

June Temperature in Potomac

In June in Potomac, the average temperature is 23°C (74°F). Maximums can reach 35°C (95°F), while minimums can drop to as low as 10°C (50°F). Be prepared for warm days and cooler nights while enjoying all that Potomac has to offer!

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

The chart illustrates June temperature patterns in Potomac, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Potomac, June typically has an average temperature of 23°C (74°F), with highs reaching up to 35°C (95°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec283142526474777470574135
Data source: Temperature data for Potomac 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 Potomac

In Potomac in June, the total precipitation amount is 112 mm (4.4 in), falling over the course of 12 days.

June Precipitation Trends in Potomac

The chart displays monthly precipitation patterns in Potomac, 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 Potomac, June typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec777711111814711287110761197459
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Potomac

In Potomac in June, humidity is 82%. With an average temperature of 23°C (74°F), this humidity feels like you are walking through a warm, damp blanket, making travel a bit uncomfortable and sticky as you navigate the air thick with moisture.

June Average Humidity in Potomac

This chart illustrates the average monthly humidity levels in Potomac, 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 Potomac is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Potomac

In Potomac in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Potomac.

Maximum UV Index Levels in Potomac for June

The chart shows the monthly maximum UV Index (UVI) for Potomac 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 Potomac typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098642
Data source: Potomac 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 Potomac Compares to Other Months

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

This table compares monthly weather conditions in Potomac, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)77 mm (3.0 inches)82%moderate
February Weather-1°C (31°F)77 mm (3.0 inches)83%moderate
March Weather6°C (43°F)111 mm (4.4 inches)84%high
April Weather11°C (52°F)118 mm (4.6 inches)85%very high
May Weather18°C (65°F)147 mm (5.8 inches)79%very high
June Weather23°C (74°F)112 mm (4.4 inches)82%extreme
July Weather25°C (77°F)87 mm (3.4 inches)80%very high
August Weather23°C (74°F)110 mm (4.3 inches)81%very high
September Weather21°C (70°F)76 mm (3.0 inches)80%very high
October Weather14°C (57°F)119 mm (4.7 inches)82%high
November Weather5°C (41°F)74 mm (2.9 inches)88%moderate
December Weather2°C (36°F)59 mm (2.3 inches)84%low

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