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October Weather in Marietta-Alderwood, United States

Last updated: June 24, 2025

In October, the average temperature in Marietta-Alderwood, United States hovers around 11°C (51°F), with a minimum dip to 2°C (36°F) and a peak reaching 19°C (66°F). Expect 186 mm (7.3 in) of precipitation over 16 days, contributing to a typically humid atmosphere at 88% humidity. Enjoy the unique climate of this destination!

October Temperature in Marietta-Alderwood

In October in Marietta-Alderwood, the average temperature is 11°C (51°F), with maximums reaching 19°C (66°F) and minimums dropping to as low as 2°C (36°F). This mild climate makes it a suitable time for exploring the area comfortably, so pack accordingly!

October Weather in Marietta-Alderwood: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Marietta-Alderwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marietta-Alderwood, October typically has an average temperature of 11°C (51°F), with highs reaching up to 19°C (66°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec413943485358636460514641
Data source: Temperature data for Marietta-Alderwood 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.

October Precipitation in Marietta-Alderwood

In Marietta-Alderwood in October, the precipitation amount is 186 mm (7.3 in) over the course of 16 days.

October Precipitation Trends in Marietta-Alderwood

The chart displays monthly precipitation patterns in Marietta-Alderwood, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Marietta-Alderwood, October typically receives around 186 mm (7.3 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec19918515612776582720125186261227
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Marietta-Alderwood

In Marietta-Alderwood in October humidity is 88%. With an average temperature of 11°C (51°F), this humidity feels like traveling through a damp, heavy blanket, making every step slightly more laborious and the air thick with moisture, which can be quite uncomfortable for exploration.

October Average Humidity in Marietta-Alderwood

This chart illustrates the average monthly humidity levels in Marietta-Alderwood, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Marietta-Alderwood is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%86%86%81%83%84%77%76%88%87%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Marietta-Alderwood

In Marietta-Alderwood in October, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Marietta-Alderwood for better planning.

Maximum UV Index Levels in Marietta-Alderwood for October

The chart shows the monthly maximum UV Index (UVI) for Marietta-Alderwood in October, 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 October, the maximum UV index in Marietta-Alderwood typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Marietta-Alderwood October 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 October Weather in Marietta-Alderwood Compares to Other Months

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

This table compares monthly weather conditions in Marietta-Alderwood, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)199 mm (7.8 inches)86%low
February Weather4°C (39°F)185 mm (7.3 inches)85%moderate
March Weather6°C (44°F)156 mm (6.2 inches)86%moderate
April Weather9°C (48°F)127 mm (5.0 inches)86%high
May Weather12°C (53°F)76 mm (3.0 inches)81%very high
June Weather15°C (59°F)58 mm (2.3 inches)83%very high
July Weather17°C (63°F)27 mm (1.1 inches)84%very high
August Weather18°C (64°F)19 mm (0.8 inches)77%very high
September Weather15°C (60°F)125 mm (4.9 inches)76%high
October Weather11°C (51°F)186 mm (7.3 inches)88%moderate
November Weather8°C (46°F)261 mm (10.3 inches)87%low
December Weather5°C (41°F)227 mm (8.9 inches)87%low

Compare Marietta-Alderwood's Climate with Cities Worldwide