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Cascade Locks (OR) Climate by Month

The temperature in Cascade Locks can vary greatly throughout the year. The temperatures shift from warm to cold. It also has a notably wet climate with much precipitation. Let's now guide you through the climate details for a complete overview.

Average day and night temperature

Depending on the time of the year, temperatures range from comfortable to chilly in Cascade Locks. Average daytime temperatures range from a comfortable 26°C in August, the warmest time of the year, to a chilly 5°C during cooler months like December. At night, temperatures typically average around -1°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Cascade Locks has a relatively rain/snowy climate with high precipitation levels, averaging 2235 mm of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, December receives heavy snow/rainfall, averaging 388 mm of precipitation, recorded across 24 snowy/rainy days. In contrast, the drier season, July brings less rainfall, with 19 mm over 4 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Cascade Locks. While July receives considerable daily sunshine with up to 11.1 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.1 hours of sunlight per day.

Monthly hours of sunshine

Data from: Portland, the United States of America (55 KM, 34 Miles).

Daily hours of sunshine

Data from: Portland, the United States of America (55 KM, 34 Miles).

The best time of year to visit Cascade Locks in the United States of America

During the months of June, July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Does Cascade Locks have a dry season?
    Yes, the months of July and August are very dry.
  • Which is the warmest month in Cascade Locks?
    August has an average maximum temperature of 26°C and is the warmest month of the year.
  • Which is the coldest month in Cascade Locks?
    The coldest month is December with an average maximum temperature of 5°C.
  • Which is the wettest month in Cascade Locks?
    December tops the wettest month list with 388 mm of rainfall.
  • Which is the driest month in Cascade Locks?
    July is the driest month with 19 mm of precipitation.
  • Which is the sunniest month in Cascade Locks?
    July is the sunniest month with an average of 332 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Cascade Locks (OR)

    Thu   Dec 12
    7°C | 0°C
    NE 11 km/h
    7.4 mm
    overcast and sleet

    overcast and sleet

    Fri   Dec 13
    7°C | 3°C
    E 11 km/h
    30 mm
    overcast and heavy sleet

    overcast and heavy sleet

    Sat   Dec 14
    10°C | 5°C
    SW 7 km/h
    13 mm
    overcast and heavy rain

    overcast and heavy rain