January weather - Winter 2025

Weather in January
Frequently asked questions
Average temperature in January
Average pressure in January
Average wind speed in January
Average humidity in January
Average rainfall in January
Average rainfall days in January
Average snowfall in January
Average snowfall days in January
Average daylight in January
Average sunshine in January
Average sunshine days in January
Average UV index in January
Average cloud cover in January
Average visibility in January

These large silos and creatively shaped red barns stand in the middle of a vast field of harvested wheat, in Pendleton, Oregon

Weather in January

We begin the year in Pendleton, Oregon, with winter in full swing and a continuation of the colder climate. January has the second-lowest temperatures of the year, predominantly holding between 28.6°F (-1.9°C) and 39.7°F (4.3°C). The cloud cover is close to its highest, leading to reduced daylight hours and frequent spells of rain and snow, apparent with 13.6 days of rainfall and 3.7 days of snowfall on average. The weather conditions can impact the visibility, making it challenging for outdoor activities. However, the cooler temperatures can present an opportunity for winter sports enthusiasts.

Temperature

With the transition into January, Pendleton notes an average high-temperature of a still cold 39.7°F (4.3°C), closely resembling December. Pendleton observes an average low-temperature of 28.6°F (-1.9°C) during January.

Humidity

January is the most humid month, with an average relative humidity of 79%.

Rainfall

In Pendleton, in January, it is raining for 13.6 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 132.7 rainfall days, and 12.91" (328mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, September, November and December. In Pendleton, in January, during 3.7 snowfall days, 1.81" (46mm) of snow is typically accumulated. Throughout the year, there are 17.5 snowfall days, and 9.41" (239mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 10min.
On the first day of the month, sunrise is at 7:35 am and sunset at 4:21 pm. On the last day of January, sunrise is at 7:17 am and sunset at 4:59 pm PST.

Sunshine

January and December, with an average of 5.4h of sunshine, are months with the least sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 2 during January leads to these instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.

Updated: Jun 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in January?

January temperatures vary between a high-temperature of 39.7°F (4.3°C) and a low-temperature of 28.6°F (-1.9°C).

What is the most humid month?

January is the most humid month, with an average relative humidity of 79%.

What is the average humidity in January?

In Pendleton, the average relative humidity in January is 79%.

How many days does it rain in January?

In Pendleton, in January, during 13.6 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

How much does it snow in January?

In Pendleton, in January, snow falls for 3.7 days, with typically accumulated 1.81" (46mm) of snow.

How many hours of daylight does Pendleton have in January?

In January, the average day length is 9h and 10min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:35 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:59 pm PST.

What are the months with the least sunshine?

January and December, with an average of 5.4h of sunshine, are months with the least sunshine.

How many hours of sunshine does Pendleton have in January?

In Pendleton, the average sunshine duration in January is 5.4h.

What is the month with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

How high is the UV index in January?

In Pendleton, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

37.9°F 3.3°C

39.7°F 4.3°C

42.6°F 5.9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.1mph 11.4km/h

7.9mph 12.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

13.8

14.3

Average UV index

Average cloud cover

43%

44%

Average visibility

6mi 9.7km

Average temperature in January
Pendleton, OR

Average high temperature in January: 39.7°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is December (37.9°F).

Average low temperature in January: 28.6°F

The month with the highest average low temperature is August (61.7°F).
The coldest month (with the lowest average low temperature) is December (27.3°F).

Average pressure in January
Pendleton, OR

Average pressure in January: 30.2"Hg

The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

Average wind speed in January
Pendleton, OR

Average wind speed in January: 6.5mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).

Average humidity in January
Pendleton, OR

Average humidity in January: 79%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (38%).

Average rainfall in January
Pendleton, OR

Average rainfall in January: 1.46"

The wettest month (with the highest rainfall) is March (1.65").
The driest month (with the least rainfall) is July (0.24").

Average rainfall days in January
Pendleton, OR

Average rainfall days in January: 13.6 days

The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (3.6 days).

Average snowfall in January
Pendleton, OR

Average snowfall in January: 1.81"

The month with the highest snowfall is February (3.62").
The months with the least snowfall are May, June, July, August and October (0").

Average snowfall days in January
Pendleton, OR

Average snowfall days in January: 3.7 days

The month with the highest number of snowfall days is December (5.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

Average daylight in January /
Average sunshine in January
Pendleton, OR

Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

Average sunshine in January: 5h and 2min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).

Average sunshine days in January
Pendleton, OR

Average sunshine days in January: 14.3 days

The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is March (11.7 days).

Average UV index in January
Pendleton, OR

Average UV index in January: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Pendleton, OR

Average cloud cover in January: 43

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 9).

Average visibility in January
Pendleton, OR

Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

January weather forecast
Pendleton, OR

Contents