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September Weather in Middlefield, United States

Last updated: June 24, 2025

In September, the average temperature in Middlefield, United States hovers around 19°C (66°F), with a range that can dip to a chilly 3°C (38°F) and soar to a sweltering 34°C (93°F). Expect 101 mm (4.0 in) of rainfall over approximately 11 days, contributing to an average humidity of 77%.

September Temperature in Middlefield

In September in Middlefield, the average temperature is 19°C (66°F). Maximums can reach 34°C (93°F), while minimums can dip to as low as 3°C (38°F). This variability makes Middlefield a great destination for travelers who enjoy diverse weather experiences.

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

The chart illustrates September temperature patterns in Middlefield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Middlefield, September typically has an average temperature of 19°C (66°F), with highs reaching up to 34°C (93°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec283138486069737166554034
Data source: Temperature data for Middlefield 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 Middlefield

In Middlefield in September, the precipitation amount is 101 mm (4.0 in) spread over 11 days.

September Precipitation Trends in Middlefield

The chart displays monthly precipitation patterns in Middlefield, 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 Middlefield, September typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec889610612913714914611510112410198
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Middlefield

In Middlefield in September, humidity is 77%. With an average temperature of 19°C (66°F), this humidity feels like a heavy blanket wrapping around you, making the air feel thick and sticky, which can be quite uncomfortable for traveling.

September Average Humidity in Middlefield

This chart illustrates the average monthly humidity levels in Middlefield, 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 Middlefield is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%87%81%83%82%76%77%82%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Middlefield

In Middlefield in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Middlefield.

Maximum UV Index Levels in Middlefield for September

The chart shows the monthly maximum UV Index (UVI) for Middlefield 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 Middlefield typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
Data source: Middlefield 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 Middlefield Compares to Other Months

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

This table compares monthly weather conditions in Middlefield, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)88 mm (3.5 inches)88%moderate
February Weather0°C (31°F)96 mm (3.8 inches)88%moderate
March Weather3°C (38°F)106 mm (4.2 inches)87%high
April Weather9°C (48°F)129 mm (5.1 inches)87%very high
May Weather16°C (60°F)136 mm (5.4 inches)81%very high
June Weather20°C (69°F)149 mm (5.9 inches)83%very high
July Weather23°C (74°F)145 mm (5.7 inches)82%very high
August Weather22°C (71°F)115 mm (4.5 inches)76%very high
September Weather19°C (66°F)101 mm (4.0 inches)77%very high
October Weather13°C (56°F)124 mm (4.9 inches)82%high
November Weather5°C (41°F)101 mm (4.0 inches)89%moderate
December Weather1°C (34°F)98 mm (3.8 inches)86%low

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