Last updated: June 24, 2025
In September, the average temperature in Jefferson, United States is a warm 26°C (79°F), with a minimum dipping to 11°C (52°F) and peaking at a hot 38°C (101°F). Expect some rain, as the region sees an average precipitation of 92 mm (3.6 in) spread over 9 days. Additionally, the average humidity hovers around 63%, creating a pleasantly tropical vibe.
In September in Jefferson, the average temperature is 26°C (79°F). Maximum temperatures can reach 38°C (101°F), while the minimum can drop to as low as 11°C (52°F). This makes Jefferson an ideal destination for travelers seeking a warm climate, but be prepared for some cooler evenings.
In Jefferson in September, the precipitation amount is 92 mm (3.6 in) during 9 days, indicating a relatively wet period for the region.
In Jefferson in September humidity is 63%. With average temperature 26°C (79°F), this humidity feels like a warm embrace, making it perfect for leisurely strolls or exploring local attractions, though be prepared for a slight stickiness that may prompt you to seek shade or refreshing beverages along the way.
In Jefferson in September, 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 Jefferson.
UV Risk Categories
Weather in Jefferson varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Jefferson, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 9°C (48°F) | 105 mm (4.1 inches) | 82% | moderate |
February Weather | 10°C (51°F) | 149 mm (5.9 inches) | 80% | high |
March Weather | 16°C (61°F) | 123 mm (4.9 inches) | 78% | very high |
April Weather | 18°C (65°F) | 170 mm (6.7 inches) | 79% | very high |
May Weather | 23°C (74°F) | 156 mm (6.1 inches) | 81% | extreme |
June Weather | 27°C (81°F) | 102 mm (4.0 inches) | 77% | extreme |
July Weather | 29°C (84°F) | 90 mm (3.5 inches) | 72% | extreme |
August Weather | 29°C (84°F) | 80 mm (3.2 inches) | 65% | extreme |
September Weather | 26°C (79°F) | 92 mm (3.6 inches) | 63% | very high |
October Weather | 20°C (68°F) | 99 mm (3.9 inches) | 70% | very high |
November Weather | 13°C (56°F) | 59 mm (2.3 inches) | 82% | high |
December Weather | 11°C (52°F) | 125 mm (4.9 inches) | 88% | moderate |