September Weather in North Amherst, United States

Last updated: June 24, 2025

In North Amherst, United States, the average temperature in September is a pleasant 18°C (65°F). While daytime highs can reach up to 33°C (92°F), the nights can be cool, with minimums dipping to 2°C (35°F). Expect 93 mm (3.7 in) of precipitation spread over 8 days, contributing to an average humidity level of 72%. Prepare for a month that offers a mix of warmth and refreshing showers!

September Temperature in North Amherst

In September in North Amherst, the average temperature is 18°C (65°F). The maximum can reach 33°C (92°F), while the minimum can drop as low as 2°C (35°F). This diverse climate makes North Amherst a great destination for travelers seeking both warmth and cool, refreshing conditions.

September Weather in North Amherst: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in North Amherst, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In North Amherst, September typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (92°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec273036475868737265544031
Data source: Temperature data for North Amherst 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 North Amherst

In North Amherst in September, the total precipitation amount is 93 mm (3.7 in) over the course of 8 days.

September Precipitation Trends in North Amherst

The chart displays monthly precipitation patterns in North Amherst, 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 North Amherst, September typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec7893811359576136869314798121
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in North Amherst

In North Amherst in September humidity is 72%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace, making traveling somewhat uncomfortable as the air clings to your skin and the heat can be stifling, yet it's perfect for enjoying leisurely strolls under the shade.

September Average Humidity in North Amherst

This chart illustrates the average monthly humidity levels in North Amherst, 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 North Amherst is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%76%72%67%64%72%81%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in North Amherst

In North Amherst 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 North Amherst.

Maximum UV Index Levels in North Amherst for September

The chart shows the monthly maximum UV Index (UVI) for North Amherst 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 North Amherst typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3568910998642
Data source: North Amherst 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 North Amherst Compares to Other Months

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

This table compares monthly weather conditions in North Amherst, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (28°F)78 mm (3.1 inches)89%moderate
February Weather-1°C (30°F)92 mm (3.6 inches)88%moderate
March Weather2°C (36°F)81 mm (3.2 inches)86%high
April Weather8°C (47°F)135 mm (5.3 inches)84%very high
May Weather15°C (59°F)95 mm (3.7 inches)76%very high
June Weather20°C (68°F)76 mm (3.0 inches)72%very high
July Weather23°C (74°F)136 mm (5.3 inches)66%very high
August Weather22°C (72°F)86 mm (3.4 inches)64%very high
September Weather18°C (65°F)93 mm (3.7 inches)72%very high
October Weather12°C (54°F)147 mm (5.8 inches)81%high
November Weather4°C (40°F)98 mm (3.8 inches)87%moderate
December Weather0°C (32°F)121 mm (4.8 inches)84%low

Compare North Amherst's Climate with Cities Worldwide