Gresham (OR) Weather and Climate: A Comprehensive Guide
The temperature in Gresham can vary greatly throughout the year.
The temperatures shift from warm
to cold.
It also experiences much rain/snowfall throughout the year.
Let’s explore the climate details in depth to provide you with a complete overview.
Average maximum day and minimum night temperature
Depending on the time of the year, temperatures range from comfortable to chilly in Gresham. Average daytime temperatures reach a comfortable 27°C in August. In December, the coolest month of the year, temperatures drop to a chilly 7°C.
At night, you can expect cooler temperatures, with averages dropping to around 2°C during this month. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Gresham has a relatively rain/snowy climate with high precipitation levels, averaging 1369 mm of rain/snowfall annually. Gresham can be quite wet during December, receiving approximately 219 mm of precipitation over 23 rainy days. In contrast August, experiences much drier conditions, with 14 mm of rainfall, spread across 5 rainy days. For more details, please visit our Gresham Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Gresham can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 11.1 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.1 hours of sunlight per day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The relative humidity is high throughout the year in Gresham.
The city experiences its highest humidity in December, reaching 83%. In July, the humidity drops to its lowest level at 63%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
Average wind speed
The mean wind speed varies between 2 m/s and 4 m/s throughout the year. It is lowest in September and October and highest during January.
The mean monthly wind speed over the year (meters per second)
broken clouds and rain overcast and heavy rain broken clouds and rainForecast for Gresham (OR)
7 m/s
10 m/s
10 m/s
The best time of year to visit Gresham in the United States of America
During the months of 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:
Most rainfall (rainy season) is seen in January, March, November and December.
Yes, the months of July and August are very dry.
August has an average maximum temperature of 27°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 7°C.
December tops the wettest month list with 219 mm of rainfall.
August is the driest month with 14 mm of precipitation.
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.
