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September Weather in Hemlock, United States

Last updated: June 24, 2025

In September, the average temperature in Hemlock, United States hovers around 17°C (64°F). During this time, temperatures can drop as low as 2°C (36°F) and reach a balmy 32°C (90°F). Expect about 78 mm (3.1 in) of precipitation spread over 8 days, with an average humidity level of 76%. Enjoy the mild climate while staying prepared for the occasional shower!

September Temperature in Hemlock

In September in Hemlock, the average temperature is 17°C (64°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as 2°C (36°F). This range makes it essential for travelers to pack both light clothing for the warmth and layers for the cooler evenings.

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

The chart illustrates September temperature patterns in Hemlock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hemlock, September typically has an average temperature of 17°C (64°F), with highs reaching up to 32°C (90°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec262834455867727063533831
Data source: Temperature data for Hemlock 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 Hemlock

In Hemlock in September, the total precipitation amount is 78 mm (3.1 in) over the course of 8 days.

September Precipitation Trends in Hemlock

The chart displays monthly precipitation patterns in Hemlock, 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 Hemlock, September typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec7580731101209114087781368286
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hemlock

In Hemlock in September, humidity is 76%. With an average temperature of 17°C (64°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel sluggish and draining, challenging travelers to stay hydrated and seek respite in shaded areas or air-conditioned spaces.

September Average Humidity in Hemlock

This chart illustrates the average monthly humidity levels in Hemlock, 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 Hemlock is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%88%88%82%80%77%72%76%83%88%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hemlock

In Hemlock 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 Hemlock.

Maximum UV Index Levels in Hemlock for September

The chart shows the monthly maximum UV Index (UVI) for Hemlock 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 Hemlock typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346810101098642
Data source: Hemlock 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 Hemlock Compares to Other Months

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

This table compares monthly weather conditions in Hemlock, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)75 mm (2.9 inches)91%moderate
February Weather-2°C (28°F)80 mm (3.2 inches)91%moderate
March Weather1°C (35°F)72 mm (2.9 inches)88%high
April Weather7°C (45°F)110 mm (4.3 inches)88%very high
May Weather14°C (58°F)119 mm (4.7 inches)82%very high
June Weather19°C (67°F)91 mm (3.6 inches)79%very high
July Weather22°C (72°F)140 mm (5.5 inches)77%very high
August Weather21°C (70°F)87 mm (3.4 inches)72%very high
September Weather17°C (64°F)78 mm (3.1 inches)76%very high
October Weather12°C (53°F)136 mm (5.4 inches)83%high
November Weather4°C (39°F)82 mm (3.2 inches)88%moderate
December Weather-1°C (31°F)86 mm (3.4 inches)87%low

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