Grants Pass (OR) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Grants Pass.
Climate overview of Grants Pass
Grants Pass, Oregon, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 32°C (90°F) in July, while winters cool to 8°C (46°F) in December.
The city receives around 783 mm (31 in) of rain/snowfall per year. It experiences a distinct dry season from May to September, with very warm summers and cold winters. December is the wettest month and August the driest.
Grants Pass Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Grants Pass - and find the best time to visit.
Monthly Temperature in Grants Pass
Depending on the time of the year, temperatures range from very warm to chilly in Grants Pass. On average, daytime temperatures range from a very warm 32°C (90°F) in July to a chilly 8°C (46°F) in December.
Nighttime temperatures range from 14°C (57°F) in July to 0°C (32°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Grants Pass
Generally, Grants Pass has a moderate amount of precipitation, averaging 783 mm (31 in) of rain/snowfall annually. The seasons in Grants Pass bring significant changes in precipitation. The wettest month, December, receives heavy rainfall, with an average of 166 mm (6.5 in) of precipitation. This rainfall is distributed across 18 rainy days.
In contrast, the driest month, August, experiences much less rainfall, totaling 5 mm (0.2 in) over 2 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Grants Pass Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Grants Pass
Each month is rated for comfortable sightseeing weather — mild temperatures and low rainfall. Tap a month for its full averages; your ideal time may differ for a beach or winter trip (see below).
- Best overall: May, June, September and October
- Warmest weather: July and August
- Fewest rainy days: July, August and September
- Wettest period: January, February, March, November and December, when rainfall peaks.
- Climate seasons: a distinct dry season from May to September, with very warm summers and cold winters
Frequently asked questions about the climate in Grants Pass
What is the best time to visit Grants Pass?
May, June, September and October typically offer the most optimal weather in Grants Pass. In contrast, January, November and December tend to have less optimal conditions. Grants Pass has a distinct dry season from May to September, with very warm summers and cold winters.
What temperatures can I expect in Grants Pass?
Daytime highs range from 8°C (46°F) in December to 32°C (90°F) in July. Nighttime lows range from 0°C (32°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Grants Pass get?
Annual rainfall is around 783 mm (31 in). December is the wettest month with 166 mm (6.5 in), while August is the driest with 5 mm (0.2 in).
Grants Pass 3-Day Forecast
Grants Pass (OR) 3-Day Forecast
Grants Pass on the map
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