Last updated: June 24, 2025
In April, the average temperature in Johnson City, United States hovers around 12°C (55°F), with minimums dipping to -5°C (24°F) and maximums climbing to 29°C (84°F). Expect 137 mm (5.4 in) of precipitation spread over 13 days, and prepare for a humid atmosphere with an average humidity level of 84%.
In April in Johnson City, the average temperature is 12°C (55°F). The maximum can reach 29°C (84°F), while the minimum can drop as low as -5°C (24°F). This variation makes it essential to pack for both warm and cool conditions when traveling to Johnson City during this month.
In Johnson City in April, the total precipitation amount reaches 137 mm (5.4 in) over the course of 13 days.
In Johnson City in April, humidity is 84%. With an average temperature of 12°C (55°F), this humidity feels like a thick blanket wrapping around you, making it a challenge for traveling as you might feel sticky and uncomfortable while exploring the sights.
In Johnson City 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 Johnson City.
UV Risk Categories
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.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (37°F) | 95 mm (3.7 inches) | 87% | moderate |
| February Weather | 6°C (43°F) | 145 mm (5.7 inches) | 87% | high |
| March Weather | 8°C (47°F) | 129 mm (5.1 inches) | 86% | very high |
| April Weather | 12°C (55°F) | 137 mm (5.4 inches) | 84% | very high |
| May Weather | 17°C (64°F) | 122 mm (4.8 inches) | 83% | extreme |
| June Weather | 20°C (69°F) | 118 mm (4.7 inches) | 83% | extreme |
| July Weather | 23°C (73°F) | 102 mm (4.0 inches) | 79% | extreme |
| August Weather | 22°C (71°F) | 118 mm (4.7 inches) | 66% | very high |
| September Weather | 20°C (68°F) | 97 mm (3.8 inches) | 68% | very high |
| October Weather | 15°C (59°F) | 122 mm (4.8 inches) | 78% | very high |
| November Weather | 7°C (45°F) | 83 mm (3.3 inches) | 89% | moderate |
| December Weather | 5°C (41°F) | 125 mm (4.9 inches) | 86% | moderate |