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May Weather in Junction, United States

Last updated: June 24, 2025

In May, the average temperature in Junction, United States hovers around 11°C (52°F). Expect a range from a chilly -8°C (19°F) to a warm 28°C (83°F). During this time, precipitation totals about 34 mm (1.3 in) over 6 days, and the average humidity rests at a comfortable 54%.

May Temperature in Junction

In May in Junction, the average temperature is 11°C (52°F). The maximum can reach 28°C (83°F), while the minimum can be as low as -8°C (19°F). This makes it essential for travelers to pack for a variety of weather conditions, ensuring comfort whether enjoying warm days or chilly nights.

May Weather in Junction: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Junction, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Junction, May typically has an average temperature of 11°C (52°F), with highs reaching up to 28°C (83°F) and lows dropping to around -8°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec232532415266717061453725
Data source: Temperature data for Junction 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.

May Precipitation in Junction

In Junction in May, the total precipitation amount is 34 mm (1.3 in) spread over 6 days.

May Precipitation Trends in Junction

The chart displays monthly precipitation patterns in Junction, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Junction, May typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec41515236347232117282535
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Junction

In Junction in May, humidity is 54%. With an average temperature of 11°C (52°F), this humidity feels like a refreshing chill in the air, making it an ideal time for exploring the outdoors without the discomfort of heavy humidity.

May Average Humidity in Junction

This chart illustrates the average monthly humidity levels in Junction, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Junction is approximately 54%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%77%70%54%45%37%34%47%67%82%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Junction

In Junction in May, 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 Junction.

Maximum UV Index Levels in Junction for May

The chart shows the monthly maximum UV Index (UVI) for Junction in May, 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 May, the maximum UV index in Junction typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479111112121110764
Data source: Junction May 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 May Weather in Junction Compares to Other Months

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

This table compares monthly weather conditions in Junction, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)41 mm (1.6 inches)87%moderate
February Weather-4°C (25°F)51 mm (2.0 inches)88%high
March Weather0°C (32°F)52 mm (2.0 inches)77%very high
April Weather5°C (41°F)36 mm (1.4 inches)69%extreme
May Weather11°C (52°F)34 mm (1.3 inches)54%extreme
June Weather19°C (66°F)6 mm (0.3 inches)45%extreme
July Weather22°C (71°F)23 mm (0.9 inches)37%extreme
August Weather21°C (70°F)21 mm (0.8 inches)34%extreme
September Weather16°C (61°F)17 mm (0.7 inches)47%very high
October Weather7°C (45°F)28 mm (1.1 inches)67%high
November Weather3°C (37°F)25 mm (1.0 inches)82%high
December Weather-4°C (25°F)35 mm (1.4 inches)87%moderate

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