Last updated: June 24, 2025
In September, the average temperature in Johnsonburg, United States is a comfortable 18°C (65°F). However, temperatures can swing between a chilly 2°C (35°F) and a warm 31°C (89°F). Expect some rain, with an average precipitation amount of 126 mm (5.0 in) over about 11 days. Additionally, the atmosphere tends to be quite humid, with an average humidity of 67%.
In September in Johnsonburg, the average temperature is 18°C (65°F). Maximums can reach 31°C (89°F), and minimums can be as low as 2°C (35°F). This range makes it a great time for travelers to enjoy a mix of warm and cool weather activities.
In Johnsonburg in September, the total precipitation amount is 126 mm (5.0 in) spread over 11 days.
In Johnsonburg in September humidity is 67%. With an average temperature of 18°C (65°F), this humidity feels like a mild blanket wrapping around you, making outdoor activities feel pleasantly refreshing, yet you may find yourself reaching for a drink more often to stay hydrated while exploring the sights.
In Johnsonburg in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Johnsonburg.
UV Risk Categories
Weather in Johnsonburg varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Johnsonburg, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -2°C (28°F) | 98 mm (3.9 inches) | 89% | moderate |
February Weather | 0°C (32°F) | 123 mm (4.9 inches) | 90% | moderate |
March Weather | 3°C (38°F) | 105 mm (4.1 inches) | 89% | high |
April Weather | 9°C (48°F) | 134 mm (5.3 inches) | 88% | very high |
May Weather | 15°C (59°F) | 151 mm (6.0 inches) | 80% | very high |
June Weather | 20°C (67°F) | 133 mm (5.3 inches) | 79% | very high |
July Weather | 22°C (72°F) | 129 mm (5.1 inches) | 74% | very high |
August Weather | 21°C (71°F) | 101 mm (4.0 inches) | 64% | very high |
September Weather | 18°C (65°F) | 126 mm (5.0 inches) | 67% | very high |
October Weather | 12°C (54°F) | 122 mm (4.8 inches) | 81% | high |
November Weather | 4°C (39°F) | 98 mm (3.8 inches) | 89% | moderate |
December Weather | 1°C (34°F) | 107 mm (4.2 inches) | 88% | low |