Saint Peter (MN) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Saint Peter.
Climate overview of Saint Peter
Saint Peter, Minnesota, United States of America, sees big temperature differences between seasons, with July peaking at 29°C (84°F) and January dropping to -5°C (23°F).
Saint Peter sees a moderate amount of rain/snowfall, totalling around 816 mm (32 in) per year. It experiences a distinct dry season from January to February, with warm summers and very cold winters, creating some seasonal variation.
Saint Peter Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Saint Peter - and find the best time to visit.
Monthly Temperature in Saint Peter
Visitors to Saint Peter can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in July, the warmest time of the year, to a very cold -5°C (23°F) during cooler months like January.
At night, you can expect temperatures ranging from 17°C (63°F) in July to around -15°C (5°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Saint Peter
Generally, Saint Peter experiences moderate precipitation patterns, averaging 816 mm (32 in) yearly. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, June it receives high rainfall, averaging 124 mm (4.9 in) of precipitation, recorded across 14 rainy days. In contrast, the driest month January brings less snowfall, with 19 mm (0.7 in) over 7 snowy days. For more details, please visit our Saint Peter 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 Peter
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and September
- Warmest weather: July
- Fewest rainy days: January, February and November
- Wettest months: April, May, June, July, August and September, when rainfall is highest.
- Seasonal pattern: A distinct dry season from January to February, with warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -15°C (5°F).
Frequently asked questions about the climate in Saint Peter
What is the best time to visit Saint Peter?
July and September typically offer the most optimal weather in Saint Peter. In contrast, January, February, March, November and December tend to have less optimal conditions. Saint Peter has a distinct dry season from January to February, with warm summers and very cold winters.
What temperatures can I expect in Saint Peter?
Daytime highs range from -5°C (23°F) in January to 29°C (84°F) in July. Nighttime lows range from -15°C (5°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Saint Peter get?
Annual rainfall is around 816 mm (32 in). June is the wettest month with 124 mm (4.9 in), while January is the driest with 19 mm (0.7 in).
Saint Peter 3-Day Forecast
Saint Peter on the map
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