What’s the climate like in Juneau?
The current climate of Juneau features average monthly temperatures ranging from highs of 18°C during the day to lows of 3°C. The average yearly temperature is around 10°C. At night, temperatures in the colder months average around -2°C and in the warmer months around 12°C.
The highest temperature recorded in Juneau in recent years was 29°C in July 2015. The lowest daytime temperature recorded was -13°C in February 2021.
On average, Juneau gets 2053 mm of precipitation each year. Of this, about 277 cm is snowfall. For comparison, London gets 701 mm of precipitation each year.
Best time to visit Juneau?
The best time to visit Juneau for pleasant to warm weather is May through August. There might be some rain during this period, but the temperatures are just right for exploring Juneau.
Climate Table of Juneau
The climate table of Juneau shows the average temperatures, precipitation, snow, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 3 | 3 | 5 | 10 | 15 | 17 | 18 | 17 | 14 | 9 | 5 | 3 |
| Temp. min (°C) | -1 | -1 | -1 | 4 | 7 | 10 | 12 | 12 | 9 | 5 | 1 | -1 |
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| Precipitation (mm) | 190 | 198 | 94 | 200 | 97 | 121 | 130 | 242 | 225 | 217 | 176 | 163 |
| Snow (cm) | 47 | 84 | 37 | 13 | 0,1 | 0 | 0 | 0 | 0 | 4,6 | 49 | 42 |
| UV Index | 0 | 1 | 3 | 4 | 5 | 5 | 4 | 4 | 2 | 2 | 1 | 1 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 10°C
- Highest temperature: 18°C in July
- Lowest temperature: 3°C in January, February and December
- Precipitation*: 2053 mm per year, averaging 171 mm per month
- Snowfall: 277 cm per year
- Driest months: 94 mm in March, 97 mm in May and 121 mm in June
- Wettest months: 242 mm in August, 225 mm in September and 217 mm in October
*Precipitation is measured as a combination of rain, snow, and hail
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Table of Contents
Average Temperature per Month in Juneau
This graph shows the average maximum temperatures per month in Juneau, Alaska. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Juneau
This graph shows how much precipitation Juneau, Alaska, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average Snowfall per Month in Juneau
This graph shows how much snow Juneau, Alaska, gets on average per month. The amount of snowfall is measured in centimetres and the average is calculated based on the recorded snowfall per month from past years.
Average UV Index per Month in Juneau
This graph shows the average UV index per month in Juneau, Alaska. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Juneau
This graph shows the average yearly temperature in Juneau, Alaska. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Juneau
This chart shows the total yearly precipitation in Juneau, Alaska, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Total Yearly Snowfall in Juneau
This chart shows the total yearly snowfall in Juneau, Alaska, over the past few years. The total yearly snowfall, measured in centimetres, is the sum of all the snow that fell in the twelve months of that year.
Weather experiences 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.
