Jefferson Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Jefferson.
Climate overview of Jefferson
Temperatures in Jefferson, United States of America, vary greatly throughout the year. July is the hottest month at 29°C (84°F), while January is the coldest at -2°C (28°F).
Annual rain/snowfall is moderate at around 892 mm (35 in), with June being the wettest month. The city also has a distinct dry season from January to February, with warm summers and very cold winters.
Jefferson Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Jefferson - and find the best time to visit.
Monthly Temperature in Jefferson
The climate in Jefferson is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a comfortable 29°C (84°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -2°C (28°F).
At night, temperatures range from around 17°C (63°F) in July to -12°C (10°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Jefferson
Generally, Jefferson receives mid-range precipitation levels, with 892 mm (35 in) annually. Jefferson can be quite wet during June, receiving approximately 130 mm (5.1 in) of precipitation over 12 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 19 mm (0.7 in) of precipitation spread across 7 snowy days. For more details, please visit our Jefferson 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 Jefferson
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Fewer rainy days: January, February, March, November and December
- Seasonal pattern: A distinct dry season from January to February, with warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -12°C (10°F).
Frequently asked questions about the climate in Jefferson
What is the best time to visit Jefferson?
September typically offers the most optimal weather in Jefferson. In contrast, January, February, March, November and December tend to have less optimal conditions. Jefferson has a distinct dry season from January to February, with warm summers and very cold winters.
What temperatures can I expect in Jefferson?
Daytime highs range from -2°C (28°F) in January to 29°C (84°F) in July. Nighttime lows range from -12°C (10°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Jefferson get?
Annual rainfall is around 892 mm (35 in). June is the wettest month with 130 mm (5.1 in), while January is the driest with 19 mm (0.7 in).
Jefferson 3-Day Forecast
Jefferson 3-Day Forecast
Jefferson on the map
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