nomadseason

September Weather in Mossyrock, United States

Last updated: June 24, 2025

In September, the average temperature in Mossyrock, United States hovers around 15°C (59°F), with extremes ranging from a cool 4°C (39°F) to a warm 32°C (90°F). Expect about 95 mm (3.7 in) of precipitation spread over 10 days, while the average humidity settles at a comfortable 74%. Enjoy the varied climate this month brings!

September Temperature in Mossyrock

In September in Mossyrock average temperature is 15°C (59°F). Maximum can reach 32°C (90°F) and minimum can be as low as 4°C (39°F). Be prepared for a mix of warm and cool weather when traveling during this month.

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

The chart illustrates September temperature patterns in Mossyrock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mossyrock, September typically has an average temperature of 15°C (59°F), with highs reaching up to 32°C (90°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec393742475459646559494338
Data source: Temperature data for Mossyrock generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Mossyrock

In Mossyrock in September, the total precipitation amount is 95 mm (3.7 in) over the course of 10 days.

September Precipitation Trends in Mossyrock

The chart displays monthly precipitation patterns in Mossyrock, 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 Mossyrock, September typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec2102391651439072162095174215228
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Mossyrock

In Mossyrock in September, humidity is 74%. With an average temperature of 15°C (59°F), this humidity feels like traveling through a warm, sticky blanket that clings to your skin, making outdoor activities a bit uncomfortable and prompting you to seek out shaded areas or cool breezes.

September Average Humidity in Mossyrock

This chart illustrates the average monthly humidity levels in Mossyrock, 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 Mossyrock is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%85%83%84%84%82%73%74%83%86%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mossyrock

In Mossyrock 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 Mossyrock.

Maximum UV Index Levels in Mossyrock for September

The chart shows the monthly maximum UV Index (UVI) for Mossyrock 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 Mossyrock typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24579101087532
Data source: Mossyrock 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 Mossyrock Compares to Other Months

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

This table compares monthly weather conditions in Mossyrock, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)210 mm (8.3 inches)86%low
February Weather3°C (37°F)239 mm (9.4 inches)84%moderate
March Weather5°C (42°F)165 mm (6.5 inches)85%moderate
April Weather8°C (47°F)143 mm (5.6 inches)83%high
May Weather12°C (54°F)90 mm (3.5 inches)84%very high
June Weather15°C (59°F)72 mm (2.8 inches)84%very high
July Weather18°C (64°F)16 mm (0.6 inches)82%very high
August Weather18°C (65°F)20 mm (0.8 inches)73%very high
September Weather15°C (59°F)95 mm (3.7 inches)74%high
October Weather9°C (49°F)174 mm (6.8 inches)83%moderate
November Weather6°C (43°F)215 mm (8.5 inches)86%moderate
December Weather4°C (39°F)228 mm (9.0 inches)87%low

Compare Mossyrock's Climate with Cities Worldwide