The Dalles
Oregon, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
The Dalles, OR

January, like December, in The Dalles, Oregon, is a wintry winter month, with average temperature varying between 41°F (5°C) and 30°F (-1.1°C).

Temperature

January is the coldest month, with an average high-temperature of 41°F (5°C) and an average low-temperature of 30°F (-1.1°C).

Rainfall

Months with the most rainfall in The Dalles are January and December, with an average 2.6" (66mm) of precipitation.

Daylight

In The Dalles, the average length of the day is 9.2h.

Sunshine

In January, the average sunshine in The Dalles is 3h.

UV index

Months with the lowest UV index in The Dalles are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to the UV radiation for the average person.
The average daily UV index of 1 transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the coldest month in The Dalles?

The coldest month in The Dalles is January, with an average high-temperature of 41°F (5°C) and an average low-temperature of 30°F (-1.1°C).

What is the temperature in January in The Dalles?

In January, in The Dalles, Oregon, the average high-temperature is 41°F (5°C), and the average low-temperature is 30°F (-1.1°C).

How many days does it rain in January in The Dalles?

In The Dalles, Oregon, in January, during 13 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

What is the wettest month in The Dalles?

Months with the most rainfall in The Dalles, Oregon, are January and December, with an average 2.6" (66mm) of precipitation.

How many hours of daylight does The Dalles have in January?

The average length of the day in January is 9.2h.

How many hours of sunshine does The Dalles have in January?

The average sunshine in January in The Dalles, Oregon, is 3h.

What are the months with the lowest UV index in The Dalles?

Months with the lowest UV index in The Dalles are January, November and December, with an average maximum UV index of 1.

What is the UV index reading in January in The Dalles?

The average daily maximum UV index in January in The Dalles is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in January - The Dalles, OR
  • Average high temperature in January: 41°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).

  • Average low temperature in January: 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).

Average rainfall in January - The Dalles, OR
  • Average rainfall in January: 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").

Average rainfall days in January - The Dalles, OR
  • Average rainfall days in January: 13 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).

Average daylight in January / Average sunshine in January - The Dalles, OR
  • Average daylight in January: 9.2h

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).

  • Average sunshine in January: 3h

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

Average UV index in January - The Dalles, OR
  • Average UV index in January: 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).