The Dalles
Oregon, USA
Long-term weather forecast
Long-term weather forecast
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December weather forecast and Climate
The Dalles, OR

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  • The average high temperature in December: 42°F

Warmest months (with the highest average high temperature) are July and August (88°F).
The month with the lowest average high temperature is January (41°F).

  • The average low temperature in December: 30°F

Months with the highest average low temperature are July and August (61°F).
Coldest months (with the lowest average low temperature) are January and December (30°F).

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  • The average rainfall in December: 2.6"

Wettest months (with the highest rainfall) are January and December (2.6").
The driest month (with the lowest rainfall) is July (0.2").

  • The average rainfall days in December: 14 days

The month with the highest number of rainy days is December (14 days).
The month with the lowest number of rainy days is July (3 days).

  • The average daylight in December: 9h

The month with the longest days is June (Average daylight: 16h).
Months with shortest days are January, November and December (Average daylight: 9h).

  • The average sunshine in December: 2h

The month with most sunshine is July (Average sunshine: 12h).
The month with least sunshine is December (Average sunshine: 2h).

  • The average UV index in December: 1

The month with the highest UV index is July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).

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