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May Weather in Johnson City, United States

Last updated: June 24, 2025

In May, the average temperature in Johnson City, United States hovers around 24°C (75°F). However, be prepared for a range of weather, with minimums dipping to 8°C (47°F) and maximums soaring to 37°C (98°F). During this month, expect approximately 140 mm (5.5 in) of precipitation spread over 13 days. With an average humidity level of 82%, it's advisable to stay hydrated and embrace the tropical ambiance!

May Temperature in Johnson City

In May in Johnson City, the average temperature is 24°C (75°F), with maximums reaching up to 37°C (98°F) and minimums dipping as low as 8°C (47°F). This diverse temperature range makes Johnson City an ideal destination for travelers seeking both warm days and cooler evenings.

May Weather in Johnson City: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Johnson City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Johnson City, May typically has an average temperature of 24°C (75°F), with highs reaching up to 37°C (98°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec505262677581848478695954
Data source: Temperature data for Johnson City 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 Johnson City

In Johnson City in May, the total precipitation amount is 140 mm (5.5 in) over the course of 13 days.

May Precipitation Trends in Johnson City

The chart displays monthly precipitation patterns in Johnson City, 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 Johnson City, May typically receives around 140 mm (5.5 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec4662657114073578199953346
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Johnson City

In Johnson City in May, 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.

May Average Humidity in Johnson City

This chart illustrates the average monthly humidity levels in Johnson City, 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 Johnson City is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%78%77%78%82%78%69%63%66%73%84%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Johnson City

In Johnson City 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 Johnson City.

Maximum UV Index Levels in Johnson City for May

The chart shows the monthly maximum UV Index (UVI) for Johnson City 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 Johnson City typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111112121111965
Data source: Johnson City 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 Johnson City Compares to Other Months

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

This table compares monthly weather conditions in Johnson City, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)46 mm (1.8 inches)78%moderate
February Weather11°C (52°F)62 mm (2.4 inches)78%high
March Weather17°C (62°F)65 mm (2.6 inches)77%very high
April Weather20°C (67°F)71 mm (2.8 inches)78%extreme
May Weather24°C (75°F)140 mm (5.5 inches)82%extreme
June Weather27°C (81°F)73 mm (2.9 inches)78%extreme
July Weather29°C (84°F)57 mm (2.2 inches)69%extreme
August Weather29°C (84°F)81 mm (3.2 inches)63%extreme
September Weather26°C (78°F)99 mm (3.9 inches)66%extreme
October Weather20°C (69°F)95 mm (3.7 inches)73%very high
November Weather15°C (59°F)33 mm (1.3 inches)84%high
December Weather12°C (54°F)46 mm (1.8 inches)87%moderate

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