nomadseason

September Weather in Anamosa, United States

Last updated: June 24, 2025

In September, the average temperature in Anamosa, United States is a pleasant 19°C (67°F). Visitors can expect a temperature range from a cool 2°C (36°F) to a warm 33°C (92°F). During this month, precipitation averages around 130 mm (5.1 in) over 10 days, contributing to an average humidity of 78%, making it a wonderfully refreshing time to experience the locale!

September Temperature in Anamosa

In September in Anamosa, the average temperature is 19°C (67°F), with maximums reaching 33°C (92°F) and minimums dropping as low as 2°C (36°F). This range makes it a great time to visit for those who enjoy mild weather but should be prepared for both warm days and cooler nights.

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

The chart illustrates September temperature patterns in Anamosa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Anamosa, September typically has an average temperature of 19°C (67°F), with highs reaching up to 33°C (92°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec212338486173767267523730
Data source: Temperature data for Anamosa generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Anamosa

In Anamosa in September, the precipitation amount is 130 mm (5.1 in) over a period of 10 days.

September Precipitation Trends in Anamosa

The chart displays monthly precipitation patterns in Anamosa, 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 Anamosa, September typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec4859738414312079881301304946
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Anamosa

In Anamosa in September humidity is 78%. With an average temperature of 19°C (67°F), this humidity feels like a warm, heavy blanket enveloping you, making traveling feel both sticky and sluggish as you navigate through the day.

September Average Humidity in Anamosa

This chart illustrates the average monthly humidity levels in Anamosa, 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 Anamosa is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%81%81%82%78%81%79%77%78%79%87%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Anamosa

In Anamosa 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 Anamosa.

Maximum UV Index Levels in Anamosa for September

The chart shows the monthly maximum UV Index (UVI) for Anamosa 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 Anamosa typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689111098643
Data source: Anamosa 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 Anamosa Compares to Other Months

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

This table compares monthly weather conditions in Anamosa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)48 mm (1.9 inches)81%moderate
February Weather-5°C (23°F)59 mm (2.3 inches)81%moderate
March Weather3°C (38°F)73 mm (2.9 inches)81%high
April Weather9°C (48°F)84 mm (3.3 inches)82%very high
May Weather16°C (62°F)143 mm (5.6 inches)78%very high
June Weather23°C (73°F)120 mm (4.7 inches)81%extreme
July Weather24°C (76°F)79 mm (3.1 inches)79%very high
August Weather22°C (72°F)88 mm (3.5 inches)77%very high
September Weather19°C (67°F)130 mm (5.1 inches)78%very high
October Weather11°C (53°F)130 mm (5.1 inches)78%high
November Weather3°C (38°F)49 mm (1.9 inches)87%moderate
December Weather-1°C (30°F)46 mm (1.8 inches)84%moderate

Compare Anamosa's Climate with Cities Worldwide