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September Weather in Dannemora, United States

Last updated: June 24, 2025

In Dannemora, United States, the average temperature in September hovers around 16°C (60°F). However, be prepared for temperature fluctuations, as it can dip to a chilly -1°C (31°F) or soar up to a warm 31°C (89°F). This month sees about 75 mm (3.0 in) of precipitation, spread over 10 days, contributing to an average humidity level of 78%.

September Temperature in Dannemora

In September in Dannemora, the average temperature is 16°C (60°F). Maximums can reach 31°C (89°F) while minimums can dip as low as -1°C (31°F). Be prepared for a varied climate that offers both warm days and chilly nights.

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

The chart illustrates September temperature patterns in Dannemora, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dannemora, September typically has an average temperature of 16°C (60°F), with highs reaching up to 31°C (89°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec192128425564706860493425
Data source: Temperature data for Dannemora 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 Dannemora

In Dannemora in September, the precipitation amount is 75 mm (3.0 in) spread over a duration of 10 days.

September Precipitation Trends in Dannemora

The chart displays monthly precipitation patterns in Dannemora, 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 Dannemora, September typically receives around 75 mm (3.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8488871171041211261187514710881
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dannemora

In Dannemora in September humidity is 78%. With an average temperature of 16°C (60°F), this humidity feels like a damp embrace, making travel a bit uncomfortable as the air clings to your skin and leaves you feeling sticky.

September Average Humidity in Dannemora

This chart illustrates the average monthly humidity levels in Dannemora, 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 Dannemora is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%86%85%80%74%76%75%78%86%89%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Dannemora

In Dannemora in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Dannemora.

Maximum UV Index Levels in Dannemora for September

The chart shows the monthly maximum UV Index (UVI) for Dannemora 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 Dannemora typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245799997532
Data source: Dannemora 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 Dannemora Compares to Other Months

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

This table compares monthly weather conditions in Dannemora, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)84 mm (3.3 inches)93%low
February Weather-6°C (21°F)88 mm (3.5 inches)92%moderate
March Weather-2°C (29°F)87 mm (3.4 inches)86%moderate
April Weather5°C (42°F)117 mm (4.6 inches)85%high
May Weather13°C (55°F)104 mm (4.1 inches)80%very high
June Weather18°C (64°F)121 mm (4.7 inches)74%very high
July Weather21°C (70°F)126 mm (5.0 inches)76%very high
August Weather20°C (68°F)118 mm (4.6 inches)75%very high
September Weather16°C (60°F)75 mm (3.0 inches)78%high
October Weather9°C (49°F)147 mm (5.8 inches)86%moderate
November Weather1°C (34°F)108 mm (4.3 inches)88%moderate
December Weather-4°C (25°F)81 mm (3.2 inches)89%low

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