September Weather in Morristown

Last updated: March 2, 2024

The weather in Morristown, United States, during September is characterized by an average temperature of 20°C (69°F). Highs can soar to 32°C (90°F), while lows may dip to 9°C (48°F). Typically, the humidity level in Morristown throughout September hovers around 68%.

Precipitation and Sunshine hours

In September, Morristown averages 101 mm (4.0 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 12 hours 24 minutes of daylight, with the sun shining for approximately 9 hours 4 minutes each day. Additionally, there is a 44% probability of sunny days during this period.

UV Index

In September, the UV Index in Morristown reaches a maximum of 8, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 minutes.

Monthly weather in Morristown

• Morristown weather January
• Morristown weather February
• Morristown weather March
• Morristown weather April
• Morristown weather May
• Morristown weather June
• Morristown weather July
• Morristown weather August
• Morristown weather September
• Morristown weather October
• Morristown weather November
• Morristown weather December