Expand
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 another arctic cold winter month in Koyukuk, Alaska, with an average temperature varying between -0.8°F (-18.2°C) and -10.5°F (-23.6°C). In Koyukuk, the lowest average temperatures are observed in January, with a high of -0.8°F (-18.2°C) and a low of -10.5°F (-23.6°C). Weather in January »
Weather in February
February, the last month of the winter in Koyukuk, is a frigid cold month, with an average temperature ranging between min -5.1°F (-20.6°C) and max 8.4°F (-13.1°C). As Koyukuk transitions into February, the average high-temperature is observed to rise from an arctic cold -0.8°F (-18.2°C) in January 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 subzero cold month, with temperature in the range of an average low of -0.4°F (-18°C) and an average high of 15.1°F (-9.4°C). The arrival of March signals a slight increase in the average high-temperature, moving from a frigid cold 8.4°F (-13.1°C) in February to a freezing cold 15.1°F (-9.4°C). Weather in March »
Weather in April
April, like March, is a freezing cold spring month in Koyukuk, Alaska, with an average temperature fluctuating between 18°F (-7.8°C) and 31.1°F (-0.5°C). 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). Weather in April »
Weather in May
May, the last month of the spring in Koyukuk, is a fresh month, with temperature in the range of an average low of 35.8°F (2.1°C) and an average high of 53.2°F (11.8°C). May's arrival is marked by a notable elevation in high-temperatures, rising from a subzero cold 31.1°F (-0.5°C) in April to a fresh 53.2°F (11.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a refreshing month in Koyukuk, Alaska, with temperature in the range of an average high of 66.4°F (19.1°C) and an average low of 46.4°F (8°C). June marks a rise in the average high-temperature, moving from May's cool 53.2°F (11.8°C) to a refreshing 66.4°F (19.1°C). Weather in June »
Weather in July
July, like June, in Koyukuk, Alaska, is another refreshing summer month, with temperature in the range of an average low of 49.5°F (9.7°C) and an average high of 67.3°F (19.6°C). The warmest period tends to be July, when average temperatures fluctuate between a high of 67.3°F (19.6°C) and a low of 49.5°F (9.7°C). Weather in July »
Weather in August
The last month of the summer, August, is another refreshing month in Koyukuk, Alaska, with an average temperature ranging between min 45°F (7.2°C) and max 60.4°F (15.8°C). The transition to August results in a modest reduction in average high-temperature, moving 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
The first month of the autumn, September, is also a frosty month in Koyukuk, Alaska, with an average temperature fluctuating between 35.6°F (2°C) and 48.7°F (9.3°C). With September's arrival, Koyukuk's weather changes as the average high-temperature falls 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, the same as September, is an icy autumn month in Koyukuk, Alaska, with an average temperature fluctuating between 24.4°F (-4.2°C) and 32.5°F (0.3°C). October is characterized by a clear drop in the average high-temperature, falling from September's frosty 48.7°F (9.3°C) to a cold 32.5°F (0.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Koyukuk, is another extremely cold month, 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). In Koyukuk, stepping into November signifies a significant temperature decrement, moving down from October's cold 32.5°F (0.3°C) to an extremely cold 10.6°F (-11.9°C). Weather in November »
Weather in December
The first month of the winter, December, is also an arctic cold month in Koyukuk, Alaska, with an average temperature varying between 3.9°F (-15.6°C) and -5.4°F (-20.8°C). Transitioning from November to December involves a subtle drop in average high-temperatures, descending from an extreme cold 10.6°F (-11.9°C) to a polar cold 3.9°F (-15.6°C). Weather in December »
Updated: Jun 3, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
January, characterized by an average high temperature of -0.8°F (-18.2°C) and a low temperature of -10.5°F (-23.6°C), is generally the coldest month.
What are the most humid months?
January through March, with an average relative humidity of 96%, are most humid months.
What is the driest month?
The month with the least rainfall 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, during the entire year, the rain falls for 116.7 days and collects up to 14.8" (376mm) of precipitation.
When does it snow?
Months with snowfall are January through May, September through December.
How many days does it snow in Koyukuk?
In Koyukuk, during the entire year, snow falls for 115.2 days and aggregates up to 43.07" (1094mm) of snow.
When is the lowest UV index?
January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index.
When is Daylight Saving Time (DST)?
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?
With an average of 8.1h of sunshine, May has the most sunshine of the year.
What are the months with the highest UV index?
The months with the highest UV index are May through July, with an average maximum UV index of 4.
What is the least humid month?
The least humid month is June, with an average relative humidity of 59%.
When it does not snow?
In Koyukuk, snow does not fall in June through August.
When are the longest days in Koyukuk?
June has the longest days of the year in Koyukuk, with an average of 21h and 30min of daylight.
What time of the year is the hottest?
July is the month that records the highest temperatures, with averages ranging from a high of 67.3°F (19.6°C) to a low of 49.5°F (9.7°C).
What is the wettest month in Koyukuk?
August is the month with the most rainfall. Rain falls for 19 days and accumulates 2.05" (52mm) of precipitation.
When does it snow the most in Koyukuk?
The month with the most snowfall is December, when snow falls for 17.5 days and typically aggregates up to 8.62" (219mm) of snow.
What is the month with the shortest days in Koyukuk?
With an average of 4h and 0min of daylight, December has the shortest days of the year.
What is the month with the least sunshine in Koyukuk?
With an average of 2.3h of sunshine, December has the least sunshine of the year.
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
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location