January weather forecast
Mazama, WA

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Weather in January

January, the same as December, in Mazama, Washington, is another subzero cold winter month, with an average temperature fluctuating between 29.3°F (-1.5°C) and 14.2°F (-9.9°C).

Temperature

January brings an average high-temperature of a still freezing cold 29.3°F (-1.5°C), nearly identical to the preceding month. Throughout January, Mazama witnesses a nighttime temperature average of 14.2°F (-9.9°C).

Humidity

With an average relative humidity of 93%, January is the most humid month.

Rainfall

In Mazama, in January, during 12 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, there are 142.6 rainfall days, and 17.91" (455mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Mazama, Washington, are January through April, September through December. In Mazama, during January, snow falls for 14.8 days and regularly aggregates up to 11.81" (300mm) of snow. Throughout the year, there are 66.9 snowfall days, and 43.98" (1117mm) of snow is accumulated.

Daylight

The average length of the day in January in Mazama, Washington, is 8h and 50min.
On the first day of January, sunrise is at 7:53 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:57 pm PST.

Sunshine

The month with the least sunshine is January, with an average of 4.1h of sunshine.

UV index

January, February and November, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 1 during January leads to these instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is January in Mazama?

January temperatures in Mazama vary between a high-temperature of 29.3°F (-1.5°C) and a low-temperature of 14.2°F (-9.9°C).

What is the most humid month in Mazama?

January is the most humid month in Mazama, Washington, with an average relative humidity of 93%.

What is the average humidity in January in Mazama?

In Mazama, Washington, the average relative humidity in January is 93%.

How much does it rain in Mazama in January?

In Mazama, during January, the rain falls for 12 days and regularly aggregates up to 2.36" (60mm) of precipitation.

How much does it snow in Mazama in January?

In Mazama, Washington, during January, snow falls for 14.8 days and regularly aggregates up to 11.81" (300mm) of snow.

What is the average length of the day in January in Mazama?

The average day length in January is 8h and 50min.

When is the sunrise / sunset in January in Mazama?

On the first day of January in Mazama, Washington, sunrise is at 7:53 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:57 pm PST.

What is the month with the least sunshine in Mazama?

January has the least sunshine of the year, with an average of 4.1h of sunshine.

How many hours of sunshine does Mazama have in January?

The average sunshine duration in January in Mazama, Washington, is 4.1h.

What is the month with the lowest UV index in Mazama?

The months with the lowest UV index in Mazama, Washington, are January, February and November, with an average maximum UV index of 1.

What is the UV index reading in January in Mazama?

The average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Mazama, WA

Average temperature in January - Mazama, WA
  • Average high temperature in January: 29.3°F

The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is December (27.5°F).

  • Average low temperature in January: 14.2°F

The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (13.5°F).

Average pressure in January
Mazama, WA

Average pressure in January - Mazama, WA
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June and August (29.95"Hg).

Average wind speed in January
Mazama, WA

Average wind speed in January - Mazama, WA
  • Average wind speed in January: 3.6mph

The windiest months (with the highest average wind speed) are June and July (5mph).
The calmest months (with the lowest average wind speed) are January and December (3.6mph).

Average humidity in January
Mazama, WA

Average humidity in January - Mazama, WA
  • Average humidity in January: 93%

The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (53%).

Average rainfall in January
Mazama, WA

Average rainfall in January - Mazama, WA
  • Average rainfall in January: 2.36"

The wettest month (with the highest rainfall) is December (2.48").
The driest month (with the least rainfall) is July (0.31").

Average rainfall days in January
Mazama, WA

Average rainfall days in January - Mazama, WA
  • Average rainfall days in January: 12 days

The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (6.1 days).

Average snowfall in January
Mazama, WA

Average snowfall in January - Mazama, WA
  • Average snowfall in January: 11.81"

The month with the highest snowfall is December (12.87").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in January
Mazama, WA

Average snowfall days in January - Mazama, WA
  • Average snowfall days in January: 14.8 days

The month with the highest number of snowfall days is December (15.3 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in January /
Average sunshine in January
Mazama, WA

Average daylight in January / Average sunshine in January - Mazama, WA
  • Average daylight in January: 8h and 5min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in January
Mazama, WA

Average sunshine days in January - Mazama, WA
  • Average sunshine days in January: 11.1 days

The month with the most sunshine days is August (23 days).
The month with the least sunshine days is March (8.3 days).

Average UV index in January
Mazama, WA

Average UV index in January - Mazama, WA
  • Average UV index in January: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).

Average cloud cover in January
Mazama, WA

Average cloud cover in January - Mazama, WA
  • Average cloud cover in January: 55

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in January
Mazama, WA

Average visibility in January - Mazama, WA
  • Average visibility in January: 3mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).

Mazama, Washington, USA

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