Last updated: June 24, 2025
In April, the average temperature in Johnston City, United States hovers around 14°C (57°F). Prepare for a range of temperatures, with minimums dipping to -2°C (28°F) and maximums soaring up to 31°C (87°F). Be ready for some rain, as 142 mm (5.6 in) of precipitation can be expected over 12 days. Additionally, with an average humidity of 80%, expect a moist atmosphere throughout the month.
In April in Johnston City, the average temperature is 14°C (57°F), with maximums reaching up to 31°C (87°F) and minimums dropping as low as -2°C (28°F). Pack accordingly to enjoy a comfortable and varied climate while exploring the local attractions.
In Johnston City in April, the total precipitation amount is 142 mm (5.6 in), occurring over the course of 12 days.
In Johnston City in April, humidity is 80%. With an average temperature of 14°C (57°F), this humidity feels like a warm, damp blanket wrapping around you, making travel uncomfortable and sticky, as sweat clings to your skin and the air feels heavy with moisture.
In Johnston 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 Johnston City.
UV Risk Categories
Weather in Johnston City varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Johnston City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 98 mm (3.9 inches) | 86% | moderate |
| February Weather | 4°C (39°F) | 118 mm (4.7 inches) | 84% | moderate |
| March Weather | 10°C (49°F) | 141 mm (5.6 inches) | 84% | high |
| April Weather | 14°C (57°F) | 142 mm (5.6 inches) | 80% | very high |
| May Weather | 20°C (69°F) | 138 mm (5.4 inches) | 82% | extreme |
| June Weather | 25°C (77°F) | 108 mm (4.2 inches) | 83% | extreme |
| July Weather | 27°C (81°F) | 92 mm (3.6 inches) | 79% | very high |
| August Weather | 25°C (78°F) | 81 mm (3.2 inches) | 76% | very high |
| September Weather | 23°C (74°F) | 74 mm (2.9 inches) | 75% | very high |
| October Weather | 16°C (61°F) | 114 mm (4.5 inches) | 74% | high |
| November Weather | 8°C (46°F) | 94 mm (3.7 inches) | 85% | moderate |
| December Weather | 5°C (42°F) | 88 mm (3.4 inches) | 88% | moderate |