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June Weather in Rockville, United States

Last updated: June 24, 2025

In June, the average temperature in Rockville, United States is a pleasant 24°C (75°F). However, temperatures can vary widely, dipping to a minimum of 10°C (49°F) and soaring to a maximum of 36°C (97°F). Expect around 113 mm (4.5 in) of precipitation over 11 days, contributing to an average humidity of 82%. Embrace the warmth and prepare for occasional showers!

June Temperature in Rockville

In June in Rockville, the average temperature is 24°C (75°F). Maximums can reach 36°C (97°F), while minimums can drop as low as 10°C (49°F). This variability makes it essential to pack a range of clothing for your travel.

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

The chart illustrates June temperature patterns in Rockville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rockville, June typically has an average temperature of 24°C (75°F), with highs reaching up to 36°C (97°F) and lows dropping to around 10°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec303343526574777570584236
Data source: Temperature data for Rockville 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 Rockville

In Rockville in June, the total precipitation amount is 113 mm (4.5 in), spread over a period of 11 days.

June Precipitation Trends in Rockville

The chart displays monthly precipitation patterns in Rockville, 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 Rockville, June typically receives around 113 mm (4.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec8488122106140113103100651188775
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Rockville

In Rockville in June, humidity is 82%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making travel feel sticky and heavy on the skin, often requiring more frequent breaks and hydration.

June Average Humidity in Rockville

This chart illustrates the average monthly humidity levels in Rockville, 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 Rockville is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Rockville

In Rockville 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 Rockville.

Maximum UV Index Levels in Rockville for June

The chart shows the monthly maximum UV Index (UVI) for Rockville 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 Rockville typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Rockville 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 Rockville Compares to Other Months

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

This table compares monthly weather conditions in Rockville, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)84 mm (3.3 inches)87%moderate
February Weather1°C (33°F)88 mm (3.5 inches)85%moderate
March Weather6°C (43°F)122 mm (4.8 inches)86%high
April Weather11°C (53°F)106 mm (4.2 inches)84%very high
May Weather18°C (65°F)140 mm (5.5 inches)79%very high
June Weather24°C (75°F)113 mm (4.5 inches)82%extreme
July Weather25°C (78°F)103 mm (4.1 inches)79%very high
August Weather24°C (75°F)100 mm (3.9 inches)70%very high
September Weather21°C (71°F)64 mm (2.5 inches)69%very high
October Weather14°C (58°F)118 mm (4.6 inches)76%high
November Weather5°C (42°F)87 mm (3.4 inches)88%moderate
December Weather2°C (36°F)75 mm (3.0 inches)87%moderate

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