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June Weather in Grafton, United States

Last updated: June 24, 2025

In Grafton, United States, the average temperature in June is a pleasant 20°C (69°F), with a minimum dipping to 5°C (42°F) and a maximum soaring up to 31°C (88°F). Expect about 145 mm (5.7 in) of precipitation spread over 17 days, and humidity levels hovering around 84%. Prepare for a mix of weather that keeps the air lively and fresh!

June Temperature in Grafton

In June in Grafton, the average temperature is 20°C (69°F). Maximums can reach up to 31°C (88°F) while minimums can drop as low as 5°C (42°F). This makes it an ideal time to explore outdoor activities while being prepared for varying temperatures.

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

The chart illustrates June temperature patterns in Grafton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grafton, June typically has an average temperature of 20°C (69°F), with highs reaching up to 31°C (88°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec333843526369737267574338
Data source: Temperature data for Grafton 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 Grafton

In Grafton in June, the total precipitation amount is 145 mm (5.7 in) occurring over a span of 17 days.

June Precipitation Trends in Grafton

The chart displays monthly precipitation patterns in Grafton, 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 Grafton, June typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec10215912215216014511511411312089134
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Grafton

In Grafton in June humidity is 84%. With an average temperature of 20°C (69°F), this humidity feels like walking through a warm, moist blanket, making travel feel heavy and slightly fatigued as the heat clings to your skin and leaves you yearning for a refreshing breeze.

June Average Humidity in Grafton

This chart illustrates the average monthly humidity levels in Grafton, 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 Grafton is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Grafton

In Grafton 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 Grafton.

Maximum UV Index Levels in Grafton for June

The chart shows the monthly maximum UV Index (UVI) for Grafton 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 Grafton typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108753
Data source: Grafton 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 Grafton Compares to Other Months

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

This table compares monthly weather conditions in Grafton, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)102 mm (4.0 inches)88%moderate
February Weather3°C (38°F)159 mm (6.2 inches)88%moderate
March Weather6°C (44°F)122 mm (4.8 inches)88%high
April Weather11°C (53°F)152 mm (6.0 inches)86%very high
May Weather17°C (63°F)160 mm (6.3 inches)82%very high
June Weather20°C (69°F)145 mm (5.7 inches)84%very high
July Weather23°C (74°F)115 mm (4.5 inches)82%very high
August Weather22°C (72°F)114 mm (4.5 inches)73%very high
September Weather19°C (67°F)113 mm (4.5 inches)73%very high
October Weather14°C (58°F)120 mm (4.7 inches)81%high
November Weather6°C (43°F)89 mm (3.5 inches)89%moderate
December Weather3°C (38°F)134 mm (5.3 inches)86%moderate

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