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September Weather in Country Knolls, United States

Last updated: June 24, 2025

In September, the average temperature in Country Knolls, United States hovers around 18°C (64°F), making it a pleasant time to visit. However, be prepared for a temperature range that can dip as low as 1°C (35°F) and soar up to 33°C (91°F). Expect some rain as well, with an average precipitation of 99 mm (3.9 in) spread over 9 days. Remember to stay refreshed—a typical humidity level of 72% is to be anticipated!

September Temperature in Country Knolls

In September in Country Knolls, the average temperature is 18°C (64°F). Maximums can reach 33°C (91°F), and minimums can be as low as 1°C (35°F). Travelers should be prepared for a range of temperatures and pack accordingly for both warm days and cooler evenings.

September Weather in Country Knolls: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Country Knolls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Country Knolls, September typically has an average temperature of 18°C (64°F), with highs reaching up to 33°C (91°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec252834465867737164533830
Data source: Temperature data for Country Knolls 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 Country Knolls

In Country Knolls in September, the precipitation amount is 99 mm (3.9 in) during a span of 9 days.

September Precipitation Trends in Country Knolls

The chart displays monthly precipitation patterns in Country Knolls, 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 Country Knolls, September typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec81988213810310414210399158109110
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Country Knolls

In Country Knolls in September, humidity is 72%. With an average temperature of 18°C (64°F), this humidity feels like a warm, sticky embrace, making travel somewhat uncomfortable as the air clings to your skin, leaving you longing for a refreshing breeze.

September Average Humidity in Country Knolls

This chart illustrates the average monthly humidity levels in Country Knolls, 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 Country Knolls is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%76%72%67%64%72%81%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Country Knolls

In Country Knolls 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 Country Knolls.

Maximum UV Index Levels in Country Knolls for September

The chart shows the monthly maximum UV Index (UVI) for Country Knolls 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 Country Knolls typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910997532
Data source: Country Knolls 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 Country Knolls Compares to Other Months

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

This table compares monthly weather conditions in Country Knolls, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)81 mm (3.2 inches)89%moderate
February Weather-2°C (28°F)98 mm (3.8 inches)88%moderate
March Weather1°C (35°F)82 mm (3.2 inches)86%high
April Weather8°C (47°F)138 mm (5.4 inches)84%very high
May Weather15°C (59°F)103 mm (4.0 inches)76%very high
June Weather19°C (67°F)104 mm (4.1 inches)72%very high
July Weather23°C (73°F)142 mm (5.6 inches)66%very high
August Weather22°C (71°F)103 mm (4.1 inches)64%very high
September Weather18°C (64°F)99 mm (3.9 inches)72%high
October Weather12°C (53°F)158 mm (6.2 inches)81%moderate
November Weather3°C (38°F)109 mm (4.3 inches)87%moderate
December Weather-1°C (30°F)110 mm (4.3 inches)84%low

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