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September Weather in Killian, United States

Last updated: June 24, 2025

In Killian, United States, the average temperature in September hovers around 27°C (80°F), making it a pleasantly warm destination. Expect temperatures to range from a minimum of 16°C (62°F) to a maximum of 34°C (94°F). However, be prepared for 147 mm (5.8 in) of precipitation spread over 14 days, contributing to an average humidity level of 79%.

September Temperature in Killian

In September in Killian, the average temperature is 27°C (80°F). Maximum temperatures can reach 34°C (94°F), while minimums can dip to as low as 16°C (62°F). This climate makes Killian an ideal destination for travelers seeking warm and pleasant weather.

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

The chart illustrates September temperature patterns in Killian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Killian, September typically has an average temperature of 27°C (80°F), with highs reaching up to 34°C (94°F) and lows dropping to around 16°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec545864697681828280736157
Data source: Temperature data for Killian 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 Killian

In Killian in September, the total precipitation amount is 147 mm (5.8 in) over the course of 14 days.

September Precipitation Trends in Killian

The chart displays monthly precipitation patterns in Killian, 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 Killian, September typically receives around 147 mm (5.8 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec1131318313314321019023614712578133
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Killian

In Killian in September humidity is 79%. With an average temperature of 27°C (80°F), this humidity feels like walking through a warm, dense blanket, making travel feel sluggish and allowing every step to become noticeably heavier.

September Average Humidity in Killian

This chart illustrates the average monthly humidity levels in Killian, 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 Killian is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%83%80%81%81%78%79%79%79%77%85%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Killian

In Killian in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Killian.

Maximum UV Index Levels in Killian for September

The chart shows the monthly maximum UV Index (UVI) for Killian 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 Killian typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111112111110965
Data source: Killian 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 Killian Compares to Other Months

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

This table compares monthly weather conditions in Killian, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)113 mm (4.4 inches)83%moderate
February Weather15°C (59°F)131 mm (5.2 inches)83%very high
March Weather18°C (64°F)83 mm (3.3 inches)80%very high
April Weather20°C (69°F)133 mm (5.2 inches)81%extreme
May Weather25°C (77°F)143 mm (5.6 inches)81%extreme
June Weather27°C (81°F)210 mm (8.3 inches)78%extreme
July Weather28°C (82°F)190 mm (7.5 inches)79%extreme
August Weather28°C (82°F)236 mm (9.3 inches)79%extreme
September Weather27°C (80°F)147 mm (5.8 inches)79%very high
October Weather23°C (73°F)125 mm (4.9 inches)77%very high
November Weather16°C (61°F)77 mm (3.1 inches)85%high
December Weather14°C (57°F)133 mm (5.2 inches)88%moderate

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