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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a polar cold winter month in Koyukuk, Alaska, with temperature in the range of an average low of -10.5°F (-23.6°C) and an average high of -0.8°F (-18.2°C). With average temperatures fluctuating between a high of -0.8°F (-18.2°C) and a low of -10.5°F (-23.6°C), January stands out as the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Koyukuk, is an extremely cold month, with an average temperature varying between 8.4°F (-13.1°C) and -5.1°F (-20.6°C). Entering February, Koyukuk sees a temperature rise, with the average high-temperature advancing from January's arctic cold -0.8°F (-18.2°C) to an extremely cold 8.4°F (-13.1°C). Weather in February »
Weather in March
March, the first month of the spring in Koyukuk, is a freezing cold month, with an average temperature ranging between max 15.1°F (-9.4°C) and min -0.4°F (-18°C). As Koyukuk enters March, the average high-temperature marginally increases from the an extreme cold 8.4°F (-13.1°C) of February to a subzero cold 15.1°F (-9.4°C). Weather in March »
Weather in April
April, the same as March, in Koyukuk, Alaska, is another subzero cold spring month, with an average temperature varying between 31.1°F (-0.5°C) and 18°F (-7.8°C). The changeover to April signals a significant increase in the average high-temperature, rising from 15.1°F (-9.4°C) in March to a still freezing cold 31.1°F (-0.5°C). Weather in April »
Weather in May
May, the last month of the spring in Koyukuk, is a cool month, with an average temperature fluctuating between 35.8°F (2.1°C) and 53.2°F (11.8°C). May is marked by a distinct increase in the average high-temperature, climbing from a freezing cold 31.1°F (-0.5°C) in April to a cool 53.2°F (11.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a comfortable month in Koyukuk, Alaska, with temperature in the range of an average low of 46.4°F (8°C) and an average high of 66.4°F (19.1°C). Koyukuk experiences a temperature shift with the start of June, with average high-temperatures moving from a fresh 53.2°F (11.8°C) in May to a refreshing 66.4°F (19.1°C). Weather in June »
Weather in July
July, like June, in Koyukuk, Alaska, is another enjoyable summer month, with an average temperature varying between 67.3°F (19.6°C) and 49.5°F (9.7°C). July registers as the month with the highest average temperatures, reaching 67.3°F (19.6°C) at its peak and 49.5°F (9.7°C) at the lowest. Weather in July »
Weather in August
The last month of the summer, August, is also a moderate month in Koyukuk, Alaska, with an average temperature varying between 45°F (7.2°C) and 60.4°F (15.8°C). August's arrival signals a moderate reduction in the average high-temperature, easing from a refreshing 67.3°F (19.6°C) in July to a moderate 60.4°F (15.8°C). Weather in August »
Weather in September
September, the first month of the autumn in Koyukuk, is also a frosty month, with an average temperature varying between 35.6°F (2°C) and 48.7°F (9.3°C). The onset of September results in a decrease in the average high-temperature, receding from a refreshing 60.4°F (15.8°C) in August to a chilly 48.7°F (9.3°C). Weather in September »
Weather in October
October, like September, in Koyukuk, Alaska, is an icy autumn month, with an average temperature ranging between max 32.5°F (0.3°C) and min 24.4°F (-4.2°C). October's arrival witnesses a distinct temperature drop, receding from September's frosty 48.7°F (9.3°C) to an icy 32.5°F (0.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frigid cold month in Koyukuk, Alaska, with temperature in the range of an average low of 2.3°F (-16.5°C) and an average high of 10.6°F (-11.9°C). November's arrival signals a significant decrease in average high-temperatures, falling from October's cold 32.5°F (0.3°C) to a frigid cold 10.6°F (-11.9°C). Weather in November »
Weather in December
The first month of the winter, December, is still a polar cold month in Koyukuk, Alaska, with an average temperature ranging between max 3.9°F (-15.6°C) and min -5.4°F (-20.8°C). A moderate decline in average high-temperatures is noted in December, moving from a frigid cold 10.6°F (-11.9°C) in November to an arctic cold 3.9°F (-15.6°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Koyukuk?
January brings the lowest temperatures, with an average high of -0.8°F (-18.2°C) and an average low of -10.5°F (-23.6°C).
What is the most humid month in Koyukuk?
January through March, with an average relative humidity of 96%, are most humid months in Koyukuk.
What is the driest month in Koyukuk?
The month with the least rainfall in Koyukuk, Alaska, is January, when the rain falls for 2.3 days and typically collects 0.59" (15mm) of precipitation.
How many days does it rain in Koyukuk?
In Koyukuk, during the entire year, the rain falls for 116.7 days and collects up to 14.8" (376mm) of precipitation.
When does it snow in Koyukuk?
Months with snowfall in Koyukuk are January through May, September through December.
How many days does it snow in Koyukuk?
Throughout the year, in Koyukuk, there are 115.2 snowfall days, and 43.07" (1094mm) of snow is accumulated.
What are the months with the lowest UV index in Koyukuk?
The months with the lowest UV index in Koyukuk are January through March, October through December, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Koyukuk?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from AKST to AKDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from AKDT to AKST.
What month has the most sunshine in Koyukuk?
May has the most sunshine of the year in Koyukuk, with an average of 8.1h of sunshine.
When is the highest UV index in Koyukuk?
The months with the highest UV index in Koyukuk, Alaska, are May through July, with an average maximum UV index of 4.
What is the least humid month in Koyukuk?
The least humid month is June, with an average relative humidity of 59%.
When it does not snow in Koyukuk?
June through August are months without snowfall in Koyukuk.
When are the longest days in Koyukuk?
With an average of 21h and 30min of daylight, June has the longest days of the year in Koyukuk.
What are the warmest months in Koyukuk?
With average high temperatures of 67.3°F (19.6°C) and lows of 49.5°F (9.7°C), July is the warmest month in Koyukuk, Alaska.
What is the rainiest month in Koyukuk?
August is the month with the most rainfall in Koyukuk. Rain falls for 19 days and accumulates 2.05" (52mm) of precipitation.
When does it snow the most in Koyukuk?
December is the month with the most snowfall. Snow falls for 17.5 days and accumulates 8.62" (219mm) of snow.
What is the month with the shortest days in Koyukuk?
The month with the shortest days in Koyukuk is December, with an average of 4h and 0min of daylight.
What is the month with the least sunshine in Koyukuk?
The month with the least sunshine is December, with an average of 2.3h of sunshine.
Average temperature
Koyukuk, AK
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).
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
Koyukuk, AK
- Average pressure in January:
29.91"Hg - Average pressure in February:
29.93"Hg - Average pressure in March:
29.92"Hg - Average pressure in April:
29.86"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.83"Hg - Average pressure in September:
29.76"Hg - Average pressure in October:
29.76"Hg - Average pressure in November:
29.82"Hg - Average pressure in December:
29.81"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
Koyukuk, AK
- Average wind speed in January:
4.6mph - Average wind speed in February:
5mph - Average wind speed in March:
5.1mph - Average wind speed in April:
5.1mph - Average wind speed in May:
5mph - Average wind speed in June:
4.9mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.9mph - Average wind speed in September:
5.2mph - Average wind speed in October:
5mph - Average wind speed in November:
4.9mph - Average wind speed in December:
4.7mph
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
Koyukuk, AK
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
Koyukuk, AK
- Average rainfall in January:
0.59" - Average rainfall in February:
0.91" - Average rainfall in March:
0.91" - Average rainfall in April:
1.02" - Average rainfall in May:
1.14" - Average rainfall in June:
1.5"
- Average rainfall in July:
1.54" - Average rainfall in August:
2.05" - Average rainfall in September:
1.57" - Average rainfall in October:
1.46" - Average rainfall in November:
0.98" - Average rainfall in December:
1.14"
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
Koyukuk, AK
- Average rainfall days in January:
2.3 days - Average rainfall days in February:
2.3 days - Average rainfall days in March:
3.8 days - Average rainfall days in April:
10.1 days - Average rainfall days in May:
16.7 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
19 days - Average rainfall days in September:
15 days - Average rainfall days in October:
9.8 days - Average rainfall days in November:
2.4 days - Average rainfall days in December:
2.5 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
Koyukuk, AK
- Average snowfall in January:
4.49" - Average snowfall in February:
7.09" - Average snowfall in March:
6.65" - Average snowfall in April:
4.72" - Average snowfall in May:
0.39" - Average snowfall in June:
0"
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
Koyukuk, AK
- Average snowfall days in January:
14.2 days - Average snowfall days in February:
16.2 days - Average snowfall days in March:
20.3 days - Average snowfall days in April:
15.9 days - Average snowfall days in May:
4 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0.1 days - Average snowfall days in September:
2.3 days - Average snowfall days in October:
9.2 days - Average snowfall days in November:
15.5 days - Average snowfall days in December:
17.5 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 / Average sunshine
Koyukuk, AK
- Average daylight in January:
5h and 2min - Average daylight in February:
8h and 3min - Average daylight in March:
11h and 5min - Average daylight in April:
15h and 2min - Average daylight in May:
18h and 5min - Average daylight in June:
21h and 3min
- Average daylight in July:
20h and 0min - Average daylight in August:
16h and 2min - Average daylight in September:
13h and 0min - Average daylight in October:
9h and 4min - Average daylight in November:
6h and 1min - Average daylight in December:
4h and 0min
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 January:
2h and 5min - Average sunshine in February:
2h and 5min - Average sunshine in March:
3h and 2min - Average sunshine in April:
3h and 4min - Average sunshine in May:
8h and 1min - Average sunshine in June:
2h and 2min
- Average sunshine in July:
6h and 4min - Average sunshine in August:
7h and 2min - Average sunshine in September:
5h and 1min - Average sunshine in October:
4h and 2min - Average sunshine in November:
2h and 4min - Average sunshine in December:
2h and 2min
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
Koyukuk, AK
- Average sunshine days in January:
18 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
11.9 days - Average sunshine days in April:
6.5 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
9.2 days - Average sunshine days in September:
12.5 days - Average sunshine days in October:
14.9 days - Average sunshine days in November:
15.2 days - Average sunshine days in December:
14.5 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
Koyukuk, AK
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
Koyukuk, AK
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
Koyukuk, AK
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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