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September Weather in Clarinda, United States

Last updated: June 24, 2025

In September, the average temperature in Clarinda, United States is a pleasant 21°C (70°F), with fluctuations ranging from a cool 5°C (42°F) to a warm 35°C (94°F). Expect about 114 mm (4.5 in) of precipitation spread over 10 days, and enjoy an average humidity level of 75%, creating a rich and vibrant atmosphere for your visit!

September Temperature in Clarinda

In September in Clarinda, the average temperature is 21°C (70°F). Maximums can reach 35°C (94°F), and minimums can be as low as 5°C (42°F). This variation makes it essential to pack layers for your travels to Clarinda during this month to ensure you're comfortable in both warm and cooler weather.

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

The chart illustrates September temperature patterns in Clarinda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clarinda, September typically has an average temperature of 21°C (70°F), with highs reaching up to 35°C (94°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec252742516476787570534032
Data source: Temperature data for Clarinda 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 Clarinda

In Clarinda in September, the precipitation amount is 114 mm (4.5 in) over a period of 10 days.

September Precipitation Trends in Clarinda

The chart displays monthly precipitation patterns in Clarinda, 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 Clarinda, September typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec36339074167131921111141533634
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Clarinda

In Clarinda in September, humidity is 75%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that makes exploring the area feel slightly sticky, requiring travelers to stay hydrated and take occasional breaks in the shade to fully enjoy their adventures.

September Average Humidity in Clarinda

This chart illustrates the average monthly humidity levels in Clarinda, 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 Clarinda is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%80%73%75%78%82%83%81%75%75%82%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Clarinda

In Clarinda 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 Clarinda.

Maximum UV Index Levels in Clarinda for September

The chart shows the monthly maximum UV Index (UVI) for Clarinda 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 Clarinda typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Clarinda 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 Clarinda Compares to Other Months

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

This table compares monthly weather conditions in Clarinda, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)36 mm (1.4 inches)76%moderate
February Weather-3°C (27°F)33 mm (1.3 inches)80%moderate
March Weather6°C (42°F)90 mm (3.5 inches)73%high
April Weather10°C (51°F)74 mm (2.9 inches)74%very high
May Weather18°C (64°F)167 mm (6.6 inches)78%very high
June Weather24°C (76°F)131 mm (5.1 inches)82%extreme
July Weather25°C (78°F)92 mm (3.6 inches)83%very high
August Weather24°C (75°F)111 mm (4.4 inches)80%very high
September Weather21°C (70°F)114 mm (4.5 inches)75%very high
October Weather12°C (54°F)153 mm (6.0 inches)75%high
November Weather5°C (41°F)36 mm (1.4 inches)82%moderate
December Weather0°C (33°F)34 mm (1.3 inches)83%moderate

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