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April Weather in Johnsonville, United States

Last updated: June 24, 2025

In April, the average temperature in Johnsonville, United States hovers around 18°C (65°F), making it a comfortable time to explore. However, be prepared for a range, as temperatures can dip as low as -2°C (28°F) and soar to 32°C (90°F). With an average humidity of 78%, the air can feel quite thick. Additionally, expect about 94 mm (3.7 in) of precipitation over approximately 8 days, so packing an umbrella might be a wise choice!

April Temperature in Johnsonville

In April in Johnsonville, the average temperature is 18°C (65°F), with maximums potentially reaching 32°C (90°F) and minimums dipping down to -2°C (28°F). Be prepared for a wide range of temperatures if you're planning to travel then!

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

The chart illustrates April 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, April typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (90°F) and lows dropping to around -2°C (28°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.

April Precipitation in Johnsonville

In Johnsonville in April, the precipitation amount is 94 mm (3.7 in) over the course of 8 days.

April Precipitation Trends in Johnsonville

The chart displays monthly precipitation patterns in Johnsonville, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Johnsonville, April typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec698672951081491722071585483134
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Johnsonville

In Johnsonville in April, humidity is 78%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket, making travel quite muggy and potentially uncomfortable, as it can leave you feeling sticky and fatigued more quickly than usual.

April Average Humidity in Johnsonville

This chart illustrates the average monthly humidity levels in Johnsonville, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in Johnsonville

In Johnsonville in April, 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 Johnsonville.

Maximum UV Index Levels in Johnsonville for April

The chart shows the monthly maximum UV Index (UVI) for Johnsonville in April, 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 April, the maximum UV index in Johnsonville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
Data source: Johnsonville April 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 April 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 April’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 April’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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