Shelby (MT) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Shelby.
Climate overview of Shelby
Shelby, Montana, United States of America, sees big temperature differences between seasons, with July peaking at 29°C (84°F) and December dropping to 0°C (32°F).
Rain/snowfall is modest, totalling around 330 mm (13 in) annually. The city experiences a distinct dry season from July to April, with warm summers and very cold winters. June tends to be the wettest month. July is the sunniest month, averaging 11.7 hours of sunshine per day.
Shelby Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Shelby - and find the best time to visit.
Monthly Temperature in Shelby
Visitors to Shelby 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 0°C (32°F) during cooler months like December.
At night, you can expect temperatures ranging from 11°C (52°F) in July to around -13°C (9°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Shelby
Shelby's climate is marked by below-average rain/snowfall, accumulating 330 mm (13 in) of precipitation yearly. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, June it receives moderate rainfall, averaging 67 mm (2.6 in) of precipitation, recorded across 12 rainy days. In contrast, the driest month February brings less snowfall, with 9.5 mm (0.4 in) over 5 snowy days. For more details, please visit our Shelby Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Shelby
Seasonal changes in sunshine hours are quite dramatic in Shelby. While July receives considerable daily sunshine with up to 11.7 hours, November marks the darkest time of the year, where sunshine is scarce with only 4.4 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Shelby
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: A distinct dry season from July to April, with warm summers and very cold winters
- Coldest conditions: December, with freezing nights around -13°C (9°F).
Frequently asked questions about the climate in Shelby
What is the best time to visit Shelby?
June, July, August and September typically offer the most optimal weather in Shelby. In contrast, January, February and December tend to have less optimal conditions. Shelby has a distinct dry season from July to April, with warm summers and very cold winters.
What temperatures can I expect in Shelby?
Daytime highs range from 0°C (32°F) in December to 29°C (84°F) in July. Nighttime lows range from -13°C (9°F) to 11°C (52°F). Temperatures vary considerably through the year.
How much rain does Shelby get?
Annual rainfall is around 330 mm (13 in). June is the wettest month with 67 mm (2.6 in), while February is the driest with 9.5 mm (0.4 in).
How sunny is Shelby?
Shelby receives around 2,884 hours of sunshine per year. July is the sunniest month with 350 hours, while November is the cloudiest with just 133 hours. Overall, Shelby enjoys abundant sunshine.
Shelby 3-Day Forecast
Shelby (MT) 3-Day Forecast
Shelby on the map
Shelby is highlighted - select any city to see its climate.
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