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September Weather in Adams, United States

Last updated: June 24, 2025

In September, the average temperature in Adams, United States hovers around 18°C (64°F). Expect a minimum of 2°C (35°F) and a maximum that can soar to 33°C (91°F). During this time, the region receives an average precipitation of 112 mm (4.4 in) over 9 days, accompanied by a moderate humidity level of 75%.

September Temperature in Adams

In September in Adams, the average temperature is 18°C (64°F). Maximums can reach 33°C (91°F), and minimums can be as low as 2°C (35°F). It's advisable to pack layers to accommodate the warm days and cooler nights when traveling during this time.

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

The chart illustrates September temperature patterns in Adams, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Adams, September typically has an average temperature of 18°C (64°F), with highs reaching up to 33°C (91°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec181734445971737064493426
Data source: Temperature data for Adams 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 Adams

In Adams in September, the total precipitation amount is 112 mm (4.4 in), occurring over a span of 9 days.

September Precipitation Trends in Adams

The chart displays monthly precipitation patterns in Adams, 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 Adams, September typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec36476680152133901041121155037
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Adams

In Adams in September, humidity is 75%. With an average temperature of 18°C (64°F), this humidity feels like a warm blanket enveloping you, making your travels a bit sticky and requiring frequent breaks in the shade to stay comfortable.

September Average Humidity in Adams

This chart illustrates the average monthly humidity levels in Adams, 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 Adams is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%80%81%74%81%80%77%75%80%87%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Adams

In Adams 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 Adams.

Maximum UV Index Levels in Adams for September

The chart shows the monthly maximum UV Index (UVI) for Adams 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 Adams typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589101098533
Data source: Adams 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 Adams Compares to Other Months

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

This table compares monthly weather conditions in Adams, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)36 mm (1.4 inches)82%moderate
February Weather-8°C (18°F)47 mm (1.8 inches)84%moderate
March Weather1°C (34°F)66 mm (2.6 inches)80%moderate
April Weather7°C (45°F)80 mm (3.1 inches)81%very high
May Weather15°C (59°F)152 mm (6.0 inches)74%very high
June Weather22°C (71°F)133 mm (5.2 inches)80%very high
July Weather23°C (73°F)90 mm (3.5 inches)80%very high
August Weather21°C (70°F)104 mm (4.1 inches)77%very high
September Weather18°C (64°F)112 mm (4.4 inches)75%very high
October Weather9°C (49°F)115 mm (4.5 inches)80%moderate
November Weather1°C (34°F)50 mm (2.0 inches)87%moderate
December Weather-3°C (26°F)37 mm (1.4 inches)83%moderate

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