May Weather in Johnsonville, United States

Last updated: June 24, 2025

In May, the average temperature in Johnsonville, United States is a pleasant 23°C (74°F). However, temperatures can range from a chilly 4°C (40°F) to a scorching 38°C (100°F). Expect about 108 mm (4.3 in) of precipitation over 9 days, with humidity averaging around 78%. This delightful mix of warmth and moisture makes for a unique experience!

May Temperature in Johnsonville

In May in Johnsonville, the average temperature is 23°C (74°F). Maximums can reach 38°C (100°F), and minimums can be as low as 4°C (40°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates May temperature patterns in Johnsonville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Johnsonville, May typically has an average temperature of 23°C (74°F), with highs reaching up to 38°C (100°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec495458657378818077695551
Data source: Temperature data for Johnsonville 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 Johnsonville

In Johnsonville in May, the precipitation amount is 108 mm (4.3 in) spread over 9 days.

May Precipitation Trends in Johnsonville

The chart displays monthly precipitation patterns in Johnsonville, 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 Johnsonville, May typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec698672951081491722071585483134
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Johnsonville

In Johnsonville in May humidity is 78%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping embrace, making travel somewhat stifling and prompting frequent breaks to hydrate and seek shade.

May Average Humidity in Johnsonville

This chart illustrates the average monthly humidity levels in Johnsonville, 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 Johnsonville is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%80%79%78%78%78%82%81%81%78%82%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Johnsonville

In Johnsonville 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 Johnsonville.

Maximum UV Index Levels in Johnsonville for May

The chart shows the monthly maximum UV Index (UVI) for Johnsonville 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 Johnsonville typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
Data source: Johnsonville 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 Johnsonville Compares to Other Months

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

This table compares monthly weather conditions in Johnsonville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)69 mm (2.7 inches)83%moderate
February Weather12°C (55°F)86 mm (3.4 inches)79%high
March Weather14°C (58°F)72 mm (2.8 inches)79%very high
April Weather18°C (65°F)94 mm (3.7 inches)78%very high
May Weather23°C (74°F)108 mm (4.3 inches)78%extreme
June Weather26°C (78°F)149 mm (5.9 inches)78%extreme
July Weather27°C (81°F)172 mm (6.8 inches)82%extreme
August Weather27°C (80°F)207 mm (8.1 inches)81%extreme
September Weather25°C (77°F)158 mm (6.2 inches)81%very high
October Weather21°C (69°F)54 mm (2.1 inches)78%very high
November Weather13°C (56°F)83 mm (3.2 inches)82%high
December Weather11°C (52°F)133 mm (5.3 inches)84%moderate

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