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September Weather in Litchfield, United States

Last updated: June 24, 2025

In September, the average temperature in Litchfield, United States hovers around 22°C (71°F). Expect a minimum of 6°C (43°F) and a maximum of 34°C (93°F). With an average humidity of 79%, you can anticipate a fair amount of moisture in the air. Overall, there’s 66 mm (2.6 in) of precipitation spread over 6 days during this month.

September Temperature in Litchfield

In September in Litchfield, the average temperature is 22°C (71°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop as low as 6°C (43°F). This makes it a great time to explore Litchfield with a diverse range of weather conditions to suit different activities.

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

The chart illustrates September temperature patterns in Litchfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Litchfield, September typically has an average temperature of 22°C (71°F), with highs reaching up to 34°C (93°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec303345546676787571584237
Data source: Temperature data for Litchfield 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 Litchfield

In Litchfield in September, the precipitation amount is 66 mm (2.6 in) over the course of 6 days.

September Precipitation Trends in Litchfield

The chart displays monthly precipitation patterns in Litchfield, 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 Litchfield, September typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec7378130137158115102114661067455
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Litchfield

In Litchfield in September humidity is 79%. With an average temperature of 22°C (71°F), this humidity feels like a warm, sticky embrace that can make any outdoor adventure quite challenging for traveling; it's advisable to stay hydrated and take breaks in the shade to fully enjoy the sights.

September Average Humidity in Litchfield

This chart illustrates the average monthly humidity levels in Litchfield, 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 Litchfield is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Litchfield

In Litchfield 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 Litchfield.

Maximum UV Index Levels in Litchfield for September

The chart shows the monthly maximum UV Index (UVI) for Litchfield 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 Litchfield typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111199643
Data source: Litchfield 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 Litchfield Compares to Other Months

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

This table compares monthly weather conditions in Litchfield, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)73 mm (2.9 inches)84%moderate
February Weather1°C (34°F)78 mm (3.1 inches)82%moderate
March Weather7°C (45°F)130 mm (5.1 inches)84%high
April Weather12°C (54°F)137 mm (5.4 inches)83%very high
May Weather19°C (66°F)158 mm (6.2 inches)80%very high
June Weather24°C (76°F)115 mm (4.5 inches)83%extreme
July Weather26°C (78°F)102 mm (4.0 inches)82%extreme
August Weather24°C (75°F)114 mm (4.5 inches)82%very high
September Weather22°C (71°F)66 mm (2.6 inches)79%very high
October Weather14°C (58°F)106 mm (4.2 inches)79%high
November Weather6°C (43°F)74 mm (2.9 inches)88%moderate
December Weather3°C (37°F)55 mm (2.2 inches)87%moderate

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