Temperatures in January
It's cold in January in Juneau with an average temperature of 3°C. Temperatures this month range from a low of 0°C to a high of 5°C. At night, you can expect temperatures between -4°C and 2°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Juneau in January. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of January
The month of January starts in Juneau with very cold temperatures, averaging around 2°C during the day and nights close to -2°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month. Wear a thick winter coat, jumper, long trousers, hat, and gloves.
Mid-January
By mid-January, the average daytime temperature rises to around 4°C, with nights close to 1°C. The chance of precipitation is high during this period. Wear a thick winter coat, jumper, long trousers, hat, and gloves.
End of January
By the end of January, the average daytime temperature in Juneau will be around 4°C, with nights close to 1°C. There’s a significant chance of many days with precipitation. Wear a thick winter coat, jumper, long trousers, hat, and gloves.
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Precipitation in January
In January, there is an average of 190 mm of precipitation, spread over 18 days. Of the total precipitation, about 48 cm falls as snow in January. The wind speed is around 4 Bft, mostly coming from the South.
Across the whole month, the average precipitation chance is 58% per day. Though that seems frequent, the weather’s variable. Some days have high and others have lower precipitation chances.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in January for Juneau. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Juneau in January |
London | ||
|---|---|---|---|
 Average Temperature |
3°C | 8°C | |
 High Temp |
5°C | 9°C | |
| Low Temp |
0°C | 6°C | |
 Total Precipitation |
190 mm | 58 mm | |
| Rainy Days |
18 days | 9 days | |
 Total Snowfall |
48 cm | 0,8 cm | |
| Snowy Days |
18 days | 1 day | |
December
UV index
The UV index is a maximum of 1 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.
Is January a good time to visit Juneau?
After some sun? Then January isn’t the best time to be in Juneau. There’s too much chance of rain this month.
Temperature records for Juneau in January
With 12°C, Juneau hit the highest temperature in the last 10 years in January 2018. The lowest daytime temperature in this month was -13°C in 2022. The extreme night temperatures ranged from a low of -14°C to a high of 8°C.
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Daily Temperature in January in Juneau
This chart shows the average daily temperatures, both day and night, for each day in January in Juneau, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in January in Juneau
The chart below shows the average daily precipitation in January for Juneau, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for January, you can expect around 18 days of rain in Juneau.
Daily Snowfall in January in Juneau
This chart shows the average daily snowfall in January in Juneau, measured in centimetres. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in January.
Daily UV Index in January in Juneau
This chart shows the average daily UV index in January in Juneau, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in January in Juneau Over the Years
This chart shows the average temperature in January in Juneau, measured in degrees Celsius, over the past years.
Total Precipitation in January in Juneau Over the Years
This chart shows the average precipitation in January in Juneau, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Snowfall in January in Juneau per year
This chart shows the average snowfall in January in Juneau, measured in centimetres, over the past years.
Daily climate in January for Juneau
Click on a specific day in January for detailed info on the typical weather on that day in Juneau. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in January in Juneau
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Average Weather in Juneau by Month
Click on a month below to see detailed weather info for Juneau. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
