Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
Observing a slight rise in April, the average high-temperature in Juneau shifts from March's freezing cold 29.5°F (-1.4°C) to a cold 37°F (2.8°C). Nightly temperatures in Juneau drop to an average low of 26.4°F (-3.1°C) in April.Humidity
In April, the average relative humidity in Juneau, Alaska, is 90%.Rainfall
In April, the rain falls for 13.1 days. Throughout April, 6.02" (153mm) of precipitation is accumulated. Throughout the year, there are 172.4 rainfall days, and 85.87" (2181mm) of precipitation is accumulated.Snowfall
Months with snowfall in Juneau are January through May, October through December. In April, in Juneau, it is snowing for 15.9 days. Throughout April, 29.45" (748mm) of snow is accumulated. Throughout the year, in Juneau, there are 126.6 snowfall days, and 290.12" (7369mm) of snow is accumulated.Ocean temperature
In April, the average ocean temperature is 41.4°F (5.2°C).Note: Swimming in 41.4°F (5.2°C) is deemed hazardous. Exposure to temperatures below 50°F (10°C) leads to immediate severe cold shock and hyperventilation.
Daylight
In April, the average length of the day is 14h and 29min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:40 pm. On the last day of April, in Juneau, sunrise is at 5:03 am and sunset at 8:46 pm AKDT.
Sunshine
The average sunshine in April in Juneau is 5.1h.UV index
January, April, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Juneau. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 1 during April translates into the following guidance:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
How cold is April in Juneau?
What is the average humidity in April in Juneau?
How many days does it rain in April in Juneau?
How many days does it snow in April in Juneau?
How cold is the water in April in Juneau?
What is the average length of the day in April in Juneau?
When are sunrise and sunset in April in Juneau?
How long on average sun shines in April in Juneau?
When is the lowest UV index in Juneau?
What is the UV index reading in April in Juneau?
Average temperature in April
Juneau, AK
- Average high temperature in April: 37°F
The warmest month (with the highest average high temperature) is July (55.8°F).
The months with the lowest average high temperature are January and December (25.7°F).
- Average low temperature in April: 26.4°F
The month with the highest average low temperature is July (45.1°F).
The coldest month (with the lowest average low temperature) is February (17.1°F).
Average pressure in April
Juneau, AK
- Average pressure in April: 29.92"Hg
The month with the highest atmospheric pressure is July (30.03"Hg).
The month with the lowest atmospheric pressure is November (29.8"Hg).
Average wind speed in April
Juneau, AK
- Average wind speed in April: 4.7mph
The windiest month (with the highest average wind speed) is January (6.9mph).
The calmest months (with the lowest average wind speed) are June and July (3.7mph).
Average humidity in April
Juneau, AK
- Average humidity in April: 90%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (86%).
Average rainfall in April
Juneau, AK
- Average rainfall in April: 6.02"
The wettest month (with the highest rainfall) is October (9.88").
The driest month (with the least rainfall) is May (4.13").
Average rainfall days in April
Juneau, AK
- Average rainfall days in April: 13.1 days
The month with the highest number of rainy days is September (21.9 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in April
Juneau, AK
- Average snowfall in April: 29.45"
The month with the highest snowfall is December (62.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Juneau, AK
- Average snowfall days in April: 15.9 days
The month with the highest number of snowfall days is January (21.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in April
Juneau, AK
- Average sea temperature in April: 41.3°F
The best month for swimming (with the highest average sea temperature) is August (53.5°F).
The coldest month (with the lowest average sea temperature) is March (40.3°F).
Average daylight in April /
Average sunshine in April
Juneau, AK
- Average daylight in April: 14h and 3min
The month with the longest days is June (Average daylight: 18h and 12min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in April: 5h and 1min
The month with the most sunshine is June (Average sunshine: 6h and 24min).
The month with the least sunshine is November (Average sunshine: 2h and 36min).
Average sunshine days in April
Juneau, AK
- Average sunshine days in April: 7.5 days
The month with the most sunshine days is May (10 days).
The month with the least sunshine days is November (6.1 days).
Average UV index in April
Juneau, AK
- Average UV index in April: 1
The months with the highest UV index are May and July (UV index 3).
The months with the lowest UV index are January, April, October, November and December (UV index 1).
Average cloud cover in April
Juneau, AK
- Average cloud cover in April: 68
The months with the most cloud cover are January and November (Cloud cover 72).
The month with the least cloud cover is May (Cloud cover 61).
Average visibility in April
Juneau, AK
- Average visibility in April: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
Juneau, Alaska, USA
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