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September Weather in Hays, United States

Last updated: June 24, 2025

In September, the average temperature in Hays, United States hovers around 22°C (72°F), offering a pleasant climate for outdoor activities. Be prepared for temperature fluctuations, as the minimum can drop to 4°C (39°F) while the mercury can soar to a maximum of 37°C (100°F). Expect about 55 mm (2.1 in) of precipitation over 5 days, contributing to an average humidity of 73%—ideal for appreciating the region's lush landscapes!

September Temperature in Hays

In September in Hays, the average temperature is 22°C (72°F), where it can reach a maximum of 37°C (100°F) and drop to a minimum of 4°C (39°F). This diverse range makes it an ideal time for travelers to experience both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Hays, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hays, September typically has an average temperature of 22°C (72°F), with highs reaching up to 37°C (100°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec313145536477817772554436
Data source: Temperature data for Hays 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 Hays

In Hays in September, the total precipitation amount is 55 mm (2.1 in) over a span of 5 days.

September Precipitation Trends in Hays

The chart displays monthly precipitation patterns in Hays, 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 Hays, September typically receives around 55 mm (2.1 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec2420644213966738055612229
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hays

In Hays in September, humidity is 73%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace that can make outdoor activities feel sticky and heavy, so it's best to stay hydrated and take frequent breaks while exploring.

September Average Humidity in Hays

This chart illustrates the average monthly humidity levels in Hays, 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 Hays is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%78%67%70%82%81%80%80%74%71%79%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hays

In Hays in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Hays.

Maximum UV Index Levels in Hays for September

The chart shows the monthly maximum UV Index (UVI) for Hays 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 Hays typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
Data source: Hays 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 Hays Compares to Other Months

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

This table compares monthly weather conditions in Hays, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)24 mm (0.9 inches)74%moderate
February Weather0°C (32°F)20 mm (0.8 inches)78%moderate
March Weather7°C (45°F)64 mm (2.5 inches)67%high
April Weather12°C (53°F)42 mm (1.6 inches)70%very high
May Weather18°C (64°F)139 mm (5.5 inches)82%very high
June Weather25°C (77°F)66 mm (2.6 inches)81%extreme
July Weather27°C (81°F)73 mm (2.9 inches)80%extreme
August Weather25°C (77°F)80 mm (3.1 inches)80%very high
September Weather22°C (72°F)55 mm (2.1 inches)73%very high
October Weather13°C (55°F)61 mm (2.4 inches)71%high
November Weather7°C (44°F)22 mm (0.9 inches)79%moderate
December Weather2°C (36°F)29 mm (1.1 inches)83%moderate

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