Last updated: June 24, 2025
In September, the average temperature in Dyersville, United States hovers around 19°C (66°F), with a minimum of 3°C (37°F) and a maximum reaching 33°C (91°F). Expect about 120 mm (4.7 in) of precipitation over 9 days, coupled with an average humidity level of 74%. Get ready for a mix of warmth and moisture as you plan your activities!
In September in Dyersville, the average temperature is 19°C (66°F). Maximums can reach 33°C (91°F) and minimums can be as low as 3°C (37°F). This makes it an ideal time for travelers to experience a range of outdoor activities, from enjoying warm days to cool evenings.
In Dyersville in September, the precipitation amount is 120 mm (4.7 in) over the course of 9 days.
In Dyersville in September humidity is 74%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it ideal for leisurely outdoor exploration but potentially heavy for those not accustomed to tropical conditions.
In Dyersville 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 Dyersville.
UV Risk Categories
Weather in Dyersville varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Dyersville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 47 mm (1.9 inches) | 84% | moderate |
| February Weather | -5°C (23°F) | 60 mm (2.4 inches) | 85% | moderate |
| March Weather | 3°C (37°F) | 64 mm (2.5 inches) | 84% | moderate |
| April Weather | 8°C (47°F) | 82 mm (3.2 inches) | 83% | very high |
| May Weather | 16°C (61°F) | 156 mm (6.1 inches) | 75% | very high |
| June Weather | 22°C (72°F) | 131 mm (5.2 inches) | 79% | extreme |
| July Weather | 24°C (75°F) | 94 mm (3.7 inches) | 75% | very high |
| August Weather | 22°C (72°F) | 82 mm (3.2 inches) | 69% | very high |
| September Weather | 19°C (66°F) | 120 mm (4.7 inches) | 74% | very high |
| October Weather | 11°C (52°F) | 126 mm (5.0 inches) | 79% | moderate |
| November Weather | 3°C (37°F) | 47 mm (1.8 inches) | 88% | moderate |
| December Weather | -1°C (30°F) | 42 mm (1.6 inches) | 82% | moderate |