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 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
As Koyukuk welcomes April, the average high-temperature witnesses a distinct rise, moving from 15.1°F (-9.4°C) in March to a still subzero cold 31.1°F (-0.5°C). Koyukuk encounters an average low-temperature of 18°F (-7.8°C) during April nights.Humidity
In April, the average relative humidity is 94%.Rainfall
In Koyukuk, in April, during 10.1 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Koyukuk, during the entire year, the rain falls for 116.7 days and collects up to 14.8" (376mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Koyukuk, in April, snow falls for 15.9 days, with typically accumulated 4.72" (120mm) of snow. Throughout the year, there are 115.2 snowfall days, and 43.07" (1094mm) of snow is accumulated.Daylight
In April, the average length of the day is 15h and 19min.On the first day of the month, sunrise is at 7:43 am and sunset at 9:25 pm. On the last day of April, sunrise is at 5:56 am and sunset at 10:59 pm AKDT.
Sunshine
In Koyukuk, the average sunshine in April is 3.7h.UV index
In April, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 2 during April translates into the following guidance:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Around midday, solar radiation is most harmful; hence, exposure should be limited. Enhance your sun protection with tightly woven, yet airy clothing. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in April?
What is the average humidity in April?
How much does it rain in April?
How many days does it snow in April?
How many hours of daylight does Koyukuk have in April?
When are sunrise and sunset in April?
How many hours of sunshine does Koyukuk have in April?
What is the UV index reading in April?
Average temperature in April
Koyukuk, AK
- Average high temperature in April: 31.1°F
The warmest month (with the highest average high temperature) is July (67.3°F).
The month with the lowest average high temperature is January (-0.8°F).
- Average low temperature in April: 18°F
The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is January (-10.5°F).
Average pressure in April
Koyukuk, AK
- Average pressure in April: 29.86"Hg
The month with the highest atmospheric pressure is February (29.93"Hg).
The months with the lowest atmospheric pressure are September and October (29.76"Hg).
Average wind speed in April
Koyukuk, AK
- Average wind speed in April: 5.1mph
The windiest month (with the highest average wind speed) is September (5.2mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).
Average humidity in April
Koyukuk, AK
- Average humidity in April: 94%
The months with the highest relative humidity are January, February and March (96%).
The month with the lowest relative humidity is June (59%).
Average rainfall in April
Koyukuk, AK
- Average rainfall in April: 1.02"
The wettest month (with the highest rainfall) is August (2.05").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in April
Koyukuk, AK
- Average rainfall days in April: 10.1 days
The month with the highest number of rainy days is August (19 days).
The months with the least rainy days are January and February (2.3 days).
Average snowfall in April
Koyukuk, AK
- Average snowfall in April: 4.72"
The month with the highest snowfall is December (8.62").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Koyukuk, AK
- Average snowfall days in April: 15.9 days
The month with the highest number of snowfall days is March (20.3 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in April /
Average sunshine in April
Koyukuk, AK
- Average daylight in April: 15h and 2min
The month with the longest days is June (Average daylight: 21h and 30min).
The month with the shortest days is December (Average daylight: 4h and 0min).
- Average sunshine in April: 3h and 4min
The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in April
Koyukuk, AK
- Average sunshine days in April: 6.5 days
The month with the most sunshine days is January (18 days).
The month with the least sunshine days is April (6.5 days).
Average UV index in April
Koyukuk, AK
- Average UV index in April: 2
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in April
Koyukuk, AK
- Average cloud cover in April: 77
The month with the most cloud cover is April (Cloud cover 77).
The month with the least cloud cover is June (Cloud cover 47).
Average visibility in April
Koyukuk, AK
- Average visibility in April: 2mi
The months with the highest visibility are June and July (6mi).
The months with the lowest visibility are January, February, March, April and December (2mi).
Koyukuk, Alaska, USA
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