Monthly weather forecast and climate
Boise, ID

The golden fall season in Boise, Idaho, with the tall city buildings in view
The golden fall season in Boise, Idaho, with the tall city buildings in view

How many days does it rain in Boise?

In Boise, during the entire year, the rain falls for 87.6 days, and collects up to 11.7" (297.9mm) of precipitation.

When does it snow in Boise?

January through April, October through December are months with snowfall.

How much does it snow in Boise?

In Boise, Idaho, during the entire year, snow falls for 19.4 days, and aggregates up to 19.2" (487.5mm) of snow.

What is the warmest month in Boise?

The warmest month in Boise, Idaho, is July, with an average high-temperature of 91.2°F (32.9°C) and an average low-temperature of 60.4°F (15.8°C).

What is the driest month in Boise?

The month with the least rainfall is August when the rain falls for 2.4 days and typically collects 0.2" (6.1mm) of precipitation.

What is the coldest month in Boise?

December is the coldest month in Boise, Idaho, with an average high-temperature of 37.6°F (3.1°C) and an average low-temperature of 24.1°F (-4.4°C).

What is the rainiest month in Boise?

December is the month with the most rainfall in Boise. Rain falls for 11.8 days and accumulates 1.6" (39.4mm) of precipitation.

What is the snowiest month in Boise?

December is the month with the most snowfall. Snow falls for 6 days and accumulates 7" (177.8mm) of snow.
Average temperature - Boise, ID
Average humidity - Boise, ID
Average rainfall - Boise, ID
Average rainfall days - Boise, ID

The month with the highest number of rainy days is December (11.8 days).
The month with the lowest number of rainy days is August (2.4 days).

Average snowfall - Boise, ID
Average snowfall days - Boise, ID

The month with the highest number of snowfall days is December (6 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine - Boise, ID
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