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Gladstone (OR) Weather and Climate: A Comprehensive Guide

The temperature in Gladstone 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 maximum day and minimum night temperature

Depending on the time of the year, temperatures range from comfortable to chilly in Gladstone. Average maximum daytime temperatures range from a comfortable 28°C in July, the warmest time of the year, to a chilly 8°C during cooler months like December.

At night, temperatures typically drop to an average of around 2°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Gladstone has a relatively rain/snowy climate with high precipitation levels, averaging 1135 mm of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, December receives heavy rainfall, averaging 194 mm of precipitation, recorded across 20 rainy days. In contrast, the drier season, July brings less rainfall, with 11 mm over 4 rainy days. For more details, please visit our Gladstone Precipitation page.

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 Gladstone. 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. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Portland, the United States of America (24 KM, 15 Miles).

Daily hours of sunshine

Data from: Portland, the United States of America (24 KM, 15 Miles).

Forecast for Gladstone (OR)

Sun   Dec 22
11°C | 6°C
E 2 m/s
10 mm
overcast and heavy rain

overcast and heavy rain

Mon   Dec 23
11°C | 6°C
NE 2 m/s
11 mm
broken clouds and rain

broken clouds and rain

Tue   Dec 24
11°C | 6°C
SW 3 m/s
5 mm
partly cloudy and rain

partly cloudy and rain

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

During the months of May, June 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:
  • Which months have the greatest rainfall in Gladstone?
    Most rainfall (rainy season) is seen in January, November and December.
  • Does Gladstone have a dry season?
    Yes, the months of July and August are very dry.
  • Which is the warmest month in Gladstone?
    July has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Gladstone?
    The coldest month is December with an average maximum temperature of 8°C.
  • Which is the wettest month in Gladstone?
    December tops the wettest month list with 194 mm of rainfall.
  • Which is the driest month in Gladstone?
    July is the driest month with 11 mm of precipitation.
  • Which is the sunniest month in Gladstone?
    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.