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April Weather in Johnson City, United States

Last updated: June 24, 2025

In Johnson City, United States, the average temperature in April hovers around 11°C (51°F), offering a mild climate. However, be prepared for fluctuations, as temperatures can dip to a chilling -1°C (30°F) or soar to a warm 28°C (84°F). This month also experiences considerable rainfall, with an average precipitation of 142 mm (5.6 in) spread over 16 days, all while maintaining a relatively high humidity level of 83%.

April Temperature in Johnson City

In April in Johnson City, the average temperature is 11°C (51°F). Maximums can reach 28°C (84°F), while minimums can drop as low as -1°C (30°F). This variability makes it essential to pack layers for your travels to Johnson City during this month.

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

The chart illustrates April 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, April typically has an average temperature of 11°C (51°F), with highs reaching up to 28°C (84°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec414146515864697064534641
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.

April Precipitation in Johnson City

In Johnson City in April, the precipitation amount is 142 mm (5.6 in) distributed over 16 days.

April Precipitation Trends in Johnson City

The chart displays monthly precipitation patterns in Johnson City, 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 Johnson City, April typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec203228161142715971083155207233
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Johnson City

In Johnson City in April, humidity is 83%. With an average temperature of 11°C (51°F), this humidity feels like a chilly dampness that clings to your skin, making any outdoor adventures a bit uncomfortable and best enjoyed with layered clothing and a light raincoat.

April Average Humidity in Johnson City

This chart illustrates the average monthly humidity levels in Johnson City, 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 Johnson City is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%85%83%83%84%82%74%71%81%87%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Johnson City

In Johnson City in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Johnson City, you can refer to this Hourly UV Index in Johnson City.

Maximum UV Index Levels in Johnson City for April

The chart shows the monthly maximum UV Index (UVI) for Johnson City 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 Johnson City typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2356991087532
Data source: Johnson City 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 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 April’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 April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)203 mm (8.0 inches)85%low
February Weather5°C (41°F)227 mm (9.0 inches)84%moderate
March Weather8°C (46°F)161 mm (6.3 inches)85%moderate
April Weather11°C (51°F)142 mm (5.6 inches)83%high
May Weather14°C (58°F)71 mm (2.8 inches)83%very high
June Weather18°C (64°F)59 mm (2.3 inches)83%very high
July Weather21°C (69°F)7 mm (0.3 inches)82%very high
August Weather21°C (70°F)10 mm (0.4 inches)74%very high
September Weather18°C (64°F)83 mm (3.3 inches)71%high
October Weather11°C (53°F)155 mm (6.1 inches)81%moderate
November Weather8°C (46°F)207 mm (8.1 inches)87%moderate
December Weather5°C (41°F)233 mm (9.2 inches)87%low

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