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June Weather in St Johnsbury, United States

Last updated: June 24, 2025

In June, the average temperature in St Johnsbury, United States hovers around 17°C (63°F). Weather can be quite variable, with minimums dropping as low as -1°C (31°F) and soaring up to a maximum of 33°C (91°F). Expect about 98 mm (3.9 in) of precipitation over approximately 12 days, and enjoy a comfortable average humidity level of 72%.

June Temperature in St Johnsbury

In June in St Johnsbury, the average temperature is 17°C (63°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as -1°C (31°F). Be prepared for a wide range of temperatures, making it essential to pack accordingly for your travels.

June Weather in St Johnsbury: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in St Johnsbury, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In St Johnsbury, June typically has an average temperature of 17°C (63°F), with highs reaching up to 33°C (91°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec182128425463686659483323
Data source: Temperature data for St Johnsbury 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 St Johnsbury

In St Johnsbury in June, the precipitation amount is 98 mm (3.9 in) over the course of 12 days.

June Precipitation Trends in St Johnsbury

The chart displays monthly precipitation patterns in St Johnsbury, 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 St Johnsbury, June typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec8078691109598106886413910385
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in St Johnsbury

In St Johnsbury in June, humidity is 72%. With an average temperature of 17°C (63°F), this humidity feels like a muggy embrace, making outdoor activities a bit sticky and requiring plenty of hydration for a comfortable travel experience.

June Average Humidity in St Johnsbury

This chart illustrates the average monthly humidity levels in St Johnsbury, 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 St Johnsbury is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%78%72%75%74%77%85%86%85%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in St Johnsbury

In St Johnsbury 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 St Johnsbury.

Maximum UV Index Levels in St Johnsbury for June

The chart shows the monthly maximum UV Index (UVI) for St Johnsbury 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 St Johnsbury typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: St Johnsbury 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 St Johnsbury Compares to Other Months

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

This table compares monthly weather conditions in St Johnsbury, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)80 mm (3.1 inches)91%low
February Weather-6°C (21°F)78 mm (3.1 inches)89%moderate
March Weather-2°C (29°F)69 mm (2.7 inches)85%moderate
April Weather5°C (42°F)110 mm (4.3 inches)84%very high
May Weather12°C (55°F)95 mm (3.7 inches)78%very high
June Weather17°C (63°F)98 mm (3.9 inches)72%very high
July Weather20°C (69°F)106 mm (4.2 inches)75%very high
August Weather19°C (67°F)88 mm (3.5 inches)74%very high
September Weather15°C (60°F)64 mm (2.5 inches)77%high
October Weather9°C (48°F)138 mm (5.5 inches)85%moderate
November Weather0°C (33°F)103 mm (4.0 inches)86%moderate
December Weather-5°C (23°F)85 mm (3.3 inches)85%low

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