Jacksonville (OR) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Jacksonville.
Climate overview of Jacksonville
Jacksonville, Oregon, United States of America, sees big temperature differences between seasons, with July peaking at 32°C (90°F) and December dropping to 8°C (46°F).
Annual rain/snowfall is moderate at around 549 mm (22 in), with December being the wettest month. The city also has a distinct dry season from May to October, with very warm summers and cold winters.
Jacksonville Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Jacksonville - and find the best time to visit.
Monthly Temperature in Jacksonville
Visitors to Jacksonville can expect significant temperature changes throughout the year. Average daytime temperatures reach a very warm 32°C (90°F) in July. In December, the coolest month of the year, temperatures drop to a chilly 8°C (46°F).
At night, temperatures range from around 13°C (55°F) in July to -1°C (30°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Jacksonville
Generally, Jacksonville experiences moderate precipitation patterns, averaging 549 mm (22 in) yearly. Jacksonville can be quite wet during December, receiving approximately 105 mm (4.1 in) of precipitation over 18 rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 6.2 mm (0.2 in) of precipitation spread across 2 rainy days. For more details, please visit our Jacksonville 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 Jacksonville
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, September and October
- Warmest weather: July and August
- Fewest rainy days: July, August and September
- Wettest months: January, February, March, November and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from May to October, with very warm summers and cold winters
- Coldest conditions: December, with freezing nights around -1°C (30°F).
Frequently asked questions about the climate in Jacksonville
What is the best time to visit Jacksonville?
May, June, September and October typically offer the most optimal weather in Jacksonville. In contrast, January and December tend to have less optimal conditions. Jacksonville has a distinct dry season from May to October, with very warm summers and cold winters.
What temperatures can I expect in Jacksonville?
Daytime highs range from 8°C (46°F) in December to 32°C (90°F) in July. Nighttime lows range from -1°C (30°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Jacksonville get?
Annual rainfall is around 549 mm (22 in). December is the wettest month with 105 mm (4.1 in), while July is the driest with 6.2 mm (0.2 in).
Jacksonville 3-Day Forecast
Jacksonville on the map
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