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September Weather in Morris, United States

Last updated: June 24, 2025

In Morris, United States, the average temperature in September is a mild 16°C (62°F). However, be prepared for a temperature range that can dip to a chilly 0°C (32°F) and soar up to a warm 31°C (87°F). Expect approximately 100 mm (4.0 in) of precipitation spread over 10 days, contributing to an average humidity of 78%. Stay comfortable and ready for a variety of weather conditions!

September Temperature in Morris

In September in Morris, the average temperature is 16°C (62°F). Maximum temperatures can reach 31°C (87°F), while minimums can dip as low as 0°C (32°F). Be prepared for a wide range of weather conditions when traveling during this month.

September Weather in Morris: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Morris, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Morris, September typically has an average temperature of 16°C (62°F), with highs reaching up to 31°C (87°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec232733445665706861513729
Data source: Temperature data for Morris generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Morris

In Morris in September, the precipitation amount is 100 mm (4.0 in) over the course of 10 days.

September Precipitation Trends in Morris

The chart displays monthly precipitation patterns in Morris, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Morris, September typically receives around 100 mm (4.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec82958711812310813011410015310295
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Morris

In Morris in September, humidity is 78%. With an average temperature of 16°C (62°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities enjoyable yet slightly sticky. Travelers may find the weather pleasantly mild, though they'll appreciate having light, breathable clothing on hand to stay comfortable while exploring.

September Average Humidity in Morris

This chart illustrates the average monthly humidity levels in Morris, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Morris is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Morris

In Morris 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 Morris.

Maximum UV Index Levels in Morris for September

The chart shows the monthly maximum UV Index (UVI) for Morris in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Morris typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346910101098642
Data source: Morris September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Morris Compares to Other Months

Weather in Morris varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Morris, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Morris, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)82 mm (3.2 inches)90%moderate
February Weather-3°C (27°F)95 mm (3.7 inches)90%moderate
March Weather0°C (33°F)87 mm (3.4 inches)87%high
April Weather7°C (45°F)118 mm (4.6 inches)88%very high
May Weather14°C (57°F)122 mm (4.8 inches)82%very high
June Weather18°C (65°F)108 mm (4.3 inches)79%very high
July Weather21°C (70°F)130 mm (5.1 inches)78%very high
August Weather20°C (68°F)114 mm (4.5 inches)76%very high
September Weather16°C (62°F)100 mm (4.0 inches)78%very high
October Weather11°C (52°F)153 mm (6.0 inches)84%high
November Weather3°C (37°F)102 mm (4.0 inches)89%moderate
December Weather-2°C (29°F)95 mm (3.7 inches)86%low

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