Monthly weather forecast and climate
Shelby, MT

In January, the average high-temperature is 34°F (1.1°C), and the average low-temperature is 10.9°F (-11.7°C). January is the month with the least rainfall, with 0.3" (8.4mm) of accumulated precipitation.
Weather in January »
The average high-temperature, is 37°F (2.8°C), while the average low-temperature is 12.9°F (-10.6°C). Throughout February, in Shelby, 0.4" (9.1mm) of precipitation is accumulated.
Weather in February »
In Shelby, in March, the average high-temperature is 45°F (7.2°C), and the average low-temperature is 21°F (-6.1°C). In Shelby, 0.7" (17.3mm) of precipitation is typically accumulated.
Weather in March »
In April, the average high-temperature is 55.9°F (13.3°C), and the average low-temperature is 28.9°F (-1.7°C). In Shelby, 1.1" (29.2mm) of precipitation is typically accumulated.
Weather in April »
In Shelby, the average high-temperature is 64.9°F (18.3°C), and the average low-temperature is 39°F (3.9°C). During May, Shelby regularly aggregates up to 2.1" (52.6mm) of precipitation.
Weather in May »
In June, the average high-temperature is 72°F (22.2°C), and the average low-temperature is 46°F (7.8°C). June is the month with the most rainfall, with 2.4" (59.9mm) of accumulated precipitation.
Weather in June »
The warmest month is July, with an average high-temperature of 81°F (27.2°C) and an average low-temperature of 51.1°F (10.6°C). In Shelby, Montana, in July, 1.2" (30.5mm) of precipitation is typically accumulated.
Weather in July »
In August, the average high-temperature is 80.1°F (26.7°C), and the average low-temperature is 48.9°F (9.4°C). During August, Shelby regularly aggregates up to 1.2" (31mm) of precipitation.
Weather in August »
The average high-temperature, is 69.1°F (20.6°C), while the average low-temperature is 39.9°F (4.4°C). During September, Shelby regularly aggregates up to 1.1" (29.2mm) of precipitation.
Weather in September »
In October, the average high-temperature is 57°F (13.9°C), and the average low-temperature is 30.9°F (-0.6°C). During October, Shelby regularly aggregates up to 0.6" (15mm) of precipitation.
Weather in October »
In November, the average high-temperature is 42.1°F (5.6°C), and the average low-temperature is 19.9°F (-6.7°C). During November, Shelby regularly aggregates up to 0.4" (11.4mm) of precipitation.
Weather in November »
December is the coldest month in Shelby, with an average high-temperature of 33.1°F (0.6°C) and an average low-temperature of 10.9°F (-11.7°C). During December, Shelby regularly aggregates up to 0.4" (9.4mm) of precipitation.
Weather in December »

How much does it rain in Shelby?

Throughout the year, in Shelby, Montana, 11.9" (303mm) of rain is accumulated.

What is the driest month in Shelby?

The month with the least rainfall in Shelby is January when 0.3" (8.4mm) of precipitation is typically aggregated.

What is the wettest month in Shelby?

The month with the most rainfall is June when 2.4" (59.9mm) of precipitation is typically aggregated.

When are the longest days in Shelby?

With an average of 16.1h of daylight, June has the longest days of the year in Shelby, Montana.

What is the warmest month in Shelby?

July is the warmest month in Shelby, Montana, with an average high-temperature of 81°F (27.2°C) and an average low-temperature of 51.1°F (10.6°C).

What is the coldest month in Shelby?

December is the coldest month, with an average high-temperature of 33.1°F (0.6°C) and an average low-temperature of 10.9°F (-11.7°C).

What is the month with the shortest days in Shelby?

The month with the shortest days is December, with an average of 8.4h of daylight.
Average rainfall - Shelby, MT
Average daylight - Shelby, MT

The month with the longest days is June (Average daylight: 16.1h).
The month with shortest days is December (Average daylight: 8.4h).

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