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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 comfortable 17°C (63°F). However, be prepared for a range, with minimums dipping to 1°C (34°F) and maximums soaring up to 33°C (92°F). During this time, anticipate an average precipitation of 82 mm (3.2 in) spread across 9 days, while the air tends to be quite humid with an average humidity of 82%.

September Temperature in Morris

In September in Morris, the average temperature is 17°C (63°F). Maximum temperatures can reach up to 33°C (92°F), while minimums can drop as low as 1°C (34°F). This variation in temperature makes it essential to pack a versatile wardrobe for your travels.

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 17°C (63°F), with highs reaching up to 33°C (92°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec131330415871736963463222
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 total precipitation amount is 82 mm (3.2 in), occurring over a span of 9 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 82 mm (3.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec19184268899110813482812538
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 82%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket wrapping around you—comfortable yet heavy, making outdoor activities more taxing and requiring frequent breaks for hydration.

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 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
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 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check 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 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3567910997532
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-11°C (13°F)19 mm (0.8 inches)85%moderate
February Weather-10°C (14°F)18 mm (0.7 inches)89%moderate
March Weather-1°C (31°F)42 mm (1.7 inches)81%high
April Weather5°C (41°F)68 mm (2.7 inches)82%high
May Weather14°C (58°F)89 mm (3.5 inches)76%very high
June Weather22°C (71°F)91 mm (3.6 inches)81%very high
July Weather23°C (74°F)108 mm (4.2 inches)82%very high
August Weather21°C (70°F)134 mm (5.3 inches)83%very high
September Weather17°C (63°F)82 mm (3.2 inches)82%high
October Weather8°C (47°F)81 mm (3.2 inches)82%moderate
November Weather0°C (32°F)25 mm (1.0 inches)87%moderate
December Weather-6°C (22°F)38 mm (1.5 inches)84%low

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