Monthly weather forecast and climate
Sisters, OR

How many days does it rain in Sisters?

In Sisters, Oregon, during the entire year, the rain falls for 72 days, and collects up to 13.5" (342.9mm) of precipitation.

When does it snow in Sisters?

Months with snowfall in Sisters are January through April, October through December.

How much does it snow in Sisters?

In Sisters, during the entire year, snow aggregates up to 30.1" (764.5mm).

When does it snow the most in Sisters?

The month with the most snowfall in Sisters is January when 8.3" (210.8mm) of snow is typically aggregated.

What is the warmest month in Sisters?

July is the warmest month, with an average high-temperature of 84.4°F (29.1°C) and an average low-temperature of 42.4°F (5.8°C).

What is the driest month in Sisters?

July is the month with the least rainfall in Sisters. Rain falls for 2 days and accumulates 0.4" (9.7mm) of precipitation.

What is the coldest month in Sisters?

The coldest month in Sisters, Oregon, is December, with an average high-temperature of 40.5°F (4.7°C) and an average low-temperature of 20.8°F (-6.2°C).

What is the rainiest month in Sisters?

December is the month with the most rainfall. Rain falls for 9 days and accumulates 2.3" (57.7mm) of precipitation.
Average temperature - Sisters, OR
Average rainfall - Sisters, OR

The wettest month (with the highest rainfall) is December (2.3").
Driest months (with the lowest rainfall) are July, August and September (0.4").

Average rainfall days - Sisters, OR
Average snowfall - Sisters, OR
Average daylight - Sisters, OR
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