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September Weather in Shamrock, United States

Last updated: June 24, 2025

In Shamrock, United States, the average temperature in September is a pleasant 23°C (74°F). Expect variations, with minimums dipping to 5°C (41°F) and maximums soaring to 38°C (100°F). Rainfall is moderate, averaging 50 mm (2.0 in) spread over 6 days, while humidity levels maintain a comfortable 72%. Prepare accordingly for a month of diverse weather!

September Temperature in Shamrock

In September in Shamrock, the average temperature is 23°C (74°F). Maximums can reach 38°C (100°F), and minimums can drop as low as 5°C (41°F). Pack for warm days and cool evenings when traveling during this time.

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

The chart illustrates September temperature patterns in Shamrock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shamrock, September typically has an average temperature of 23°C (74°F), with highs reaching up to 38°C (100°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec383951586877818073594942
Data source: Temperature data for Shamrock 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 Shamrock

In Shamrock in September, the precipitation amount is 50 mm (2.0 in) over the course of 6 days.

September Precipitation Trends in Shamrock

The chart displays monthly precipitation patterns in Shamrock, 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 Shamrock, September typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec241666378868374050711423
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Shamrock

In Shamrock in September humidity is 72%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping blanket that clings to the skin, making outdoor activities a challenge but offering a refreshing atmosphere for leisurely strolls in the shade.

September Average Humidity in Shamrock

This chart illustrates the average monthly humidity levels in Shamrock, 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 Shamrock is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%76%64%70%78%81%82%78%72%73%81%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Shamrock

In Shamrock 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 Shamrock.

Maximum UV Index Levels in Shamrock for September

The chart shows the monthly maximum UV Index (UVI) for Shamrock 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 Shamrock typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112121110754
Data source: Shamrock 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 Shamrock Compares to Other Months

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

This table compares monthly weather conditions in Shamrock, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (39°F)24 mm (0.9 inches)75%moderate
February Weather4°C (39°F)16 mm (0.6 inches)76%high
March Weather11°C (52°F)66 mm (2.6 inches)64%very high
April Weather14°C (58°F)37 mm (1.5 inches)70%very high
May Weather20°C (68°F)88 mm (3.5 inches)78%extreme
June Weather25°C (78°F)68 mm (2.7 inches)81%extreme
July Weather27°C (81°F)37 mm (1.4 inches)82%extreme
August Weather26°C (80°F)40 mm (1.6 inches)78%extreme
September Weather23°C (74°F)50 mm (2.0 inches)72%very high
October Weather15°C (60°F)71 mm (2.8 inches)73%high
November Weather9°C (49°F)14 mm (0.6 inches)80%moderate
December Weather6°C (43°F)22 mm (0.9 inches)81%moderate

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