Last updated: June 24, 2025
In September, the average temperature in Randolph, United States hovers around 17°C (62°F). However, temperatures can vary significantly, dipping to a chilly 2°C (35°F) at night and soaring to a warm 30°C (87°F) during the day. Be prepared for some rain, as 88 mm (3.5 in) of precipitation can be expected over 11 days. With an average humidity level of 76%, it’s a month where you might feel both the warmth and a touch of dampness in the air.
In September in Randolph, the average temperature is 17°C (62°F). Maximum temperatures can reach 30°C (87°F), while minimum temperatures can drop as low as 2°C (35°F). This makes Randolph a great destination for travelers looking to enjoy a mild climate with the potential for both warm days and cool evenings.
In Randolph in September, the total precipitation amount is 88 mm (3.5 in) spread over 11 days.
In Randolph in September, humidity is 76%. With an average temperature of 17°C (62°F), this humidity feels like a warm, enveloping embrace, making travel feel slightly more challenging as it can lead to a sticky discomfort, especially during outdoor excursions.
In Randolph 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 Randolph.
UV Risk Categories
Weather in Randolph varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Randolph, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 102 mm (4.0 inches) | 91% | moderate |
| February Weather | -2°C (28°F) | 110 mm (4.3 inches) | 91% | moderate |
| March Weather | 1°C (34°F) | 103 mm (4.1 inches) | 88% | high |
| April Weather | 7°C (45°F) | 130 mm (5.1 inches) | 88% | very high |
| May Weather | 14°C (57°F) | 135 mm (5.3 inches) | 82% | very high |
| June Weather | 18°C (65°F) | 146 mm (5.7 inches) | 79% | very high |
| July Weather | 21°C (70°F) | 154 mm (6.1 inches) | 77% | very high |
| August Weather | 20°C (68°F) | 113 mm (4.4 inches) | 72% | very high |
| September Weather | 17°C (62°F) | 88 mm (3.5 inches) | 76% | very high |
| October Weather | 11°C (52°F) | 147 mm (5.8 inches) | 83% | high |
| November Weather | 3°C (37°F) | 125 mm (4.9 inches) | 88% | moderate |
| December Weather | -1°C (31°F) | 118 mm (4.6 inches) | 87% | low |