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October Weather in Mattawa, United States

Last updated: June 24, 2025

In October, the average temperature in Mattawa, United States hovers around 11°C (51°F). Expect a broad range, with minimums dipping to -6°C (22°F) and maximums soaring up to 31°C (89°F). You'll also encounter an average precipitation of 33 mm (1.3 in) over approximately 6 days, while the average humidity rests at a comfortable 83%. Stay prepared for a mix of weather!

October Temperature in Mattawa

In October in Mattawa, the average temperature is 11°C (51°F). The maximum can reach 31°C (89°F), while the minimum can be as low as -6°C (22°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

October Weather in Mattawa: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Mattawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mattawa, October typically has an average temperature of 11°C (51°F), with highs reaching up to 31°C (89°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec313243526370777766514033
Data source: Temperature data for Mattawa 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 Mattawa

In Mattawa, in October, the precipitation amount is 33 mm (1.3 in) over the course of 6 days.

October Precipitation Trends in Mattawa

The chart displays monthly precipitation patterns in Mattawa, 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 Mattawa, October typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec454328261771514333538
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Mattawa

In Mattawa in October, humidity is 83%. With an average temperature of 11°C (51°F), this humidity feels like a chilly dampness that clings to your skin, making any outdoor adventures a bit uncomfortable and best enjoyed with layered clothing and a light raincoat.

October Average Humidity in Mattawa

This chart illustrates the average monthly humidity levels in Mattawa, 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 Mattawa is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%87%84%81%82%79%63%62%83%89%88%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Mattawa

In Mattawa in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Mattawa.

Maximum UV Index Levels in Mattawa for October

The chart shows the monthly maximum UV Index (UVI) for Mattawa 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 Mattawa typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2356891097532
Data source: Mattawa 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 Mattawa Compares to Other Months

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

This table compares monthly weather conditions in Mattawa, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)45 mm (1.8 inches)86%low
February Weather0°C (33°F)43 mm (1.7 inches)86%moderate
March Weather6°C (43°F)27 mm (1.1 inches)87%moderate
April Weather11°C (52°F)26 mm (1.0 inches)84%high
May Weather17°C (63°F)17 mm (0.7 inches)81%very high
June Weather21°C (70°F)7 mm (0.3 inches)82%very high
July Weather25°C (77°F)1 mm (0.0 inches)79%very high
August Weather25°C (77°F)5 mm (0.2 inches)63%very high
September Weather19°C (66°F)14 mm (0.5 inches)62%high
October Weather11°C (51°F)33 mm (1.3 inches)83%moderate
November Weather4°C (40°F)35 mm (1.4 inches)89%moderate
December Weather0°C (33°F)38 mm (1.5 inches)88%low

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