Saint Johnsbury (VT) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Saint Johnsbury.
Climate overview of Saint Johnsbury
The climate in Saint Johnsbury, Vermont, United States of America, is marked by large temperature swings across the seasons, ranging from 26°C (79°F) in July to -3°C (27°F) in January.
With around 1121 mm (44 in) of annual rain/snowfall, Saint Johnsbury has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has warm summers and very cold winters. The wettest month is July.
Saint Johnsbury Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Saint Johnsbury - and find the best time to visit.
Monthly Temperature in Saint Johnsbury
In Saint Johnsbury, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 26°C (79°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -3°C (27°F).
At night, temperatures range from around 14°C (57°F) in July to -14°C (7°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Saint Johnsbury
Saint Johnsbury experiences significant rain/snowfall throughout the year, averaging 1121 mm (44 in) of precipitation annually. Saint Johnsbury can be quite wet during July, receiving approximately 135 mm (5.3 in) of precipitation over 15 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 57 mm (2.2 in) of precipitation spread across 16 snowy days. For more details, please visit our Saint Johnsbury 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 Saint Johnsbury
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
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -14°C (7°F).
Frequently asked questions about the climate in Saint Johnsbury
What is the best time to visit Saint Johnsbury?
September typically offers the most optimal weather in Saint Johnsbury. In contrast, January, February, March, November and December tend to have less optimal conditions. Saint Johnsbury has warm summers and very cold winters.
What temperatures can I expect in Saint Johnsbury?
Daytime highs range from -3°C (27°F) in January to 26°C (79°F) in July. Nighttime lows range from -14°C (7°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Saint Johnsbury get?
Annual rainfall is around 1121 mm (44 in). July is the wettest month with 135 mm (5.3 in), while January is the driest with 57 mm (2.2 in).
Saint Johnsbury 3-Day Forecast
Saint Johnsbury (VT) 3-Day Forecast
Saint Johnsbury on the map
Saint Johnsbury is highlighted - select any city to see its climate.
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