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September Weather in Newell, United States

Last updated: June 24, 2025

In September, the average temperature in Newell, United States hovers around 18°C (64°F), with fluctuations that can see it dip to a chilly 0°C (32°F) or soar up to a scorching 38°C (101°F). Visitors can expect about 33 mm (1.3 in) of precipitation over roughly 5 days, coupled with an average humidity level of 77%.

September Temperature in Newell

In September in Newell, the average temperature is 18°C (64°F). Maximum temperatures can reach 38°C (101°F), while minimums can drop as low as 0°C (32°F). Be prepared for a wide range of temperatures and pack accordingly for your trip!

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

The chart illustrates September temperature patterns in Newell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newell, September typically has an average temperature of 18°C (64°F), with highs reaching up to 38°C (101°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec252136435570767264463730
Data source: Temperature data for Newell 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 Newell

In Newell in September, the precipitation amount is 33 mm (1.3 in) over the course of 5 days.

September Precipitation Trends in Newell

The chart displays monthly precipitation patterns in Newell, 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 Newell, September typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec132428586850643233491221
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Newell

In Newell in September humidity is 77%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making it feel muggy and potentially uncomfortable for traveling, as sweat clings to your skin and the air thickens around you.

September Average Humidity in Newell

This chart illustrates the average monthly humidity levels in Newell, 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 Newell is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%80%70%70%76%84%85%85%77%73%74%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Newell

In Newell 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 Newell.

Maximum UV Index Levels in Newell for September

The chart shows the monthly maximum UV Index (UVI) for Newell 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 Newell typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245991010108532
Data source: Newell 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 Newell Compares to Other Months

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

This table compares monthly weather conditions in Newell, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)13 mm (0.5 inches)77%low
February Weather-6°C (21°F)24 mm (0.9 inches)80%moderate
March Weather2°C (36°F)28 mm (1.1 inches)70%moderate
April Weather6°C (43°F)58 mm (2.3 inches)70%very high
May Weather13°C (56°F)68 mm (2.7 inches)76%very high
June Weather21°C (70°F)50 mm (2.0 inches)84%very high
July Weather24°C (76°F)64 mm (2.5 inches)85%very high
August Weather22°C (73°F)31 mm (1.2 inches)84%very high
September Weather18°C (64°F)33 mm (1.3 inches)77%very high
October Weather8°C (46°F)49 mm (1.9 inches)73%moderate
November Weather3°C (37°F)12 mm (0.5 inches)74%moderate
December Weather-1°C (30°F)21 mm (0.8 inches)79%low

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