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September Weather in Earlham, United States

Last updated: June 24, 2025

In September, the average temperature in Earlham, United States is a pleasant 20°C (69°F). However, temperatures can swing from a cool 5°C (41°F) to a warm 34°C (94°F). Expect around 105 mm (4.1 in) of precipitation spread over 9 days, with an average humidity of 73%. Whether you prefer sunny strolls or cozy indoor activities, this month offers a bit of everything!

September Temperature in Earlham

In September in Earlham, the average temperature is 20°C (69°F). Maximums can reach 34°C (94°F), while minimums can drop as low as 5°C (41°F). This makes Earlham a suitable destination for travelers looking to experience mild weather with the possibility of warmer days.

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

The chart illustrates September temperature patterns in Earlham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Earlham, September typically has an average temperature of 20°C (69°F), with highs reaching up to 34°C (94°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec232440496275777469523931
Data source: Temperature data for Earlham 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 Earlham

In Earlham in September, the total precipitation amount reaches 105 mm (4.1 in) over the course of 9 days.

September Precipitation Trends in Earlham

The chart displays monthly precipitation patterns in Earlham, 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 Earlham, September typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec3739837117411866871051203638
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Earlham

In Earlham in September humidity is 73%. With an average temperature of 20°C (69°F), this humidity feels like a warm embrace, making travel slightly sticky but ultimately comfortable as long as you stay hydrated and take breaks in the shade.

September Average Humidity in Earlham

This chart illustrates the average monthly humidity levels in Earlham, 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 Earlham is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%80%77%78%77%81%81%77%73%75%85%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Earlham

In Earlham 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 Earlham.

Maximum UV Index Levels in Earlham for September

The chart shows the monthly maximum UV Index (UVI) for Earlham 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 Earlham typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689111098643
Data source: Earlham 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 Earlham Compares to Other Months

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

This table compares monthly weather conditions in Earlham, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)37 mm (1.5 inches)78%moderate
February Weather-4°C (25°F)39 mm (1.5 inches)80%moderate
March Weather4°C (40°F)83 mm (3.3 inches)77%high
April Weather10°C (50°F)71 mm (2.8 inches)77%very high
May Weather17°C (63°F)174 mm (6.8 inches)77%very high
June Weather24°C (75°F)118 mm (4.7 inches)81%extreme
July Weather25°C (78°F)66 mm (2.6 inches)81%very high
August Weather23°C (74°F)87 mm (3.4 inches)77%very high
September Weather20°C (69°F)105 mm (4.1 inches)73%very high
October Weather11°C (53°F)120 mm (4.7 inches)75%high
November Weather4°C (39°F)36 mm (1.4 inches)85%moderate
December Weather-1°C (31°F)38 mm (1.5 inches)83%moderate

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