Climate and monthly weather forecast
Big Lake, AK

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The climate of Big Lake

The prevailing climatological conditions of Big Lake, Alaska, USA fall under the Dfc category of the Köppen climate classification indicating a Subarctic climate. This classification supports the reality of severe winters devoid of a dry season and relatively cool summers.

Situated strategically, Big Lake experiences a very distinguished weather pattern throughout the year with high levels of humidity usually sitting between 64% for the driest month (May) and 88% for the wettest month (March). Rainfall ranges from a low of 0.59" (15mm) in both April and May to a high of 1.77" (45mm) in September. The region is also familiar with snowfall, especially from December to February with up to 5.67" (144mm) recorded in December and somewhat in late autumn (November) and early spring (March).

Uniquely, Big Lake experiences long hours of daylight during summer (up to 19.3 hours in June) and fewer daylight hours during winter (a low of 5.5 hours in December). Temperatures, however, exhibit notable variations with maximum temperatures around 64.8°F (18.2°C) in July and minimum temperatures at 10.6°F (-11.9°C) in January. Wind speed is relatively moderate with gusts peaking at 9.5mph (15.3km/h) in December.

The Best Time to Visit Big Lake

For a tourist venture in Big Lake, the warmest months between May and August provide the most conducive settings. In particular, temperatures in July can are characteristically around 64.8°F (18.2°C). July also proffers long daylight hours, reaching up to 18.4 hours, offering plenty of time for exploration. During this period, clear skies sessions are longer and are accompanied by an average of 4 UV Index.

The Worst Time to Visit Big Lake

Considering the severe winter conditions, traveling to Big Lake from December to February can be very challenging. The conditions are harsh with colder temperatures falling to 10.6°F (-11.9°C) in January, the coldest month of the year. Additionally, daylight hours are limited to as little as 5.5 hours in December, thus restraining the duration for outdoor activities.

Spring Weather in Big Lake

Springtime in Big Lake, extending from March to May, is generally mild. With temperatures slowly climbing from 29.3°F (-1.5°C) in March to 54.1°F (12.3°C) in May. Coupled with a general decrease in snowfall and an increase in rainfall, the snow gradually melts away paving the way for a vibrant summer season. Despite the melting snow, the humidity remains relatively high until May.

Summer Weather in Big Lake

Between June and August, the weather in Big Lake becomes very appealing. June presents the highest amount of daylight, totalling at around 19.3 hours. Though the temperatures peak in July at 64.8°F (18.2°C), these early summer months are nonetheless warm, setting a perfect scene for outdoor activities.

Autumn Weather in Big Lake

Autumn, spanning from September to November, presents a steady decline in temperatures from 53.4°F (11.9°C) in September to 26.4°F (-3.1°C) in November. Rainfall spikes to 1.77" (45mm) in September before gradually simmering down, while the amount of daylight decreases with each passing month. However, compared to other months, autumn is quite windy, with wind gusts up to 9.3mph (15km/h) in November.

Winter Weather in Big Lake

Winter dominates Big Lake from December to February, characterized by very low temperatures, extensive snowfall, and minimal daylight hours. Between these months, temperatures range from a high of 21.7°F (-5.7°C) in December to a chilling low of 10.6°F (-11.9°C) in January. Snowfall surges to a high of 5.67" (144mm) in December, creating a white blanket over the region.

Weather in January

Kickstarting the year in Big Lake, Alaska, January presents classic winter conditions. Compared to December, the weather is slightly cooler, with the lowest average temperatures of the year ranging from 10.6°F (-11.9°C) at its mildest to a chilly 19.2°F (-7.1°C) at its highest. Weather in January »

Weather in February

February in Big Lake, Alaska, continues on the winter appeal but introduces subtle changes. Temperatures rise slightly, allowing for more snowfall which increases to 4.06" (103mm). Commuting may be hindered but the snow-ridden scenery brings its charm to the city. Weather in February »

Weather in March

Crafting a transition between winter and spring, March in Big Lake, Alaska, shows slightly warmer temperatures. This shift enables residents to immerse themselves more in outdoor activities. An interesting aspect of March weather is the consistent snowfall from February, measured at 4.06" (103mm). Weather in March »

Weather in April

April strides into Big Lake, Alaska, with a pleasant change in climatic conditions. The snowfall drastically dips to 1.61" (41mm), marking a significant decline from the heavy snowfall in March. Combined with a notable rise in temperature, this month ushers in a refreshing spring vibe. Weather in April »

Weather in May

Weather in May in Big Lake, Alaska, exudes a congenial spring atmosphere. Given the stark contrast witnessed from April’s conditions, it's as if the landscape has been painted anew: the snow completely dissipates, replaced by the mild spring showers of 0.59" (15mm) rainfall. Weather in May »

Weather in June

June greets Big Lake, Alaska, with budding summer weather. This month exhibits the longest daylight hours, boasting about 19.3 hours of light exposure. Showers continue to ease off, this time declining to 0.75" (19mm) rainfall. The approach of July foreshadows a shift towards the peak summer vibe, with a slight rise in temperature and the highest rainfall of the year. Weather in June »

Weather in July

July takes over Big Lake, Alaska, with the clear dominance of summer. This month holds the record for the highest average temperatures in a year, recording a maximum of 64.8°F (18.2°C), and the maximum annual rainfall of 1.22" (31mm). Weather in July »

Weather in August

As the second half of the year progresses, August in Big Lake, Alaska, witnesses a mild deceleration of summer. The rainfall goes up the scale a notch, standing at 1.46" (37mm), marginally higher than July. In contrast to the incoming September, this month showcases the waning phase of warm conditions, heading towards a cooler autumn. Weather in August »

Weather in September

In September, Big Lake, Alaska, welcomes serene autumn conditions. The climate cools down while the rainfall has its peak, registering at 1.77" (45mm). A community adorns much-loved cozy sweaters and hot beverages become a regular diet. Weather in September »

Weather in October

October in Big Lake, Alaska, carries forward the spirit of autumn along with a subtle introduction to winter. Notably, the temperatures drop more than the previous month and when compared to the upcoming November, the climate remains relatively warm. Weather in October »

Weather in November

November in Big Lake, Alaska, is the prelude to the anticipated cold winters. The climate consistently cools down and the first signs of snow start appearing with an average snowfall of 3.23" (82mm). Comparatively, the forthcoming December will have lower temperatures and greater snowfall. Weather in November »

Weather in December

Entering the final month of the year, December in Big Lake, Alaska, immerses itself fully into the winter conditions. Witness how winters are at their peak with an aggregate snowfall of 5.67" (144mm), the highest throughout the year. Weather in December »
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Frequently asked questions

What part of the year is the coldest in Big Lake?

January proves to be the coldest month in Big Lake, recording an average maximum temperature of 19.2°F (-7.1°C) and a minimum temperature of 10.6°F (-11.9°C).

How much does it rain in Big Lake?

Throughout the year, there are 137.5 rainfall days, and 11.97" (304mm) of precipitation is accumulated.

When does it snow in Big Lake?

January through May, September through December are months with snowfall.

How much does it snow in Big Lake?

In Big Lake, Alaska, during the entire year, snow falls for 56.8 days and aggregates up to 22.48" (571mm) of snow.

What is the most humid month in Big Lake?

March is the most humid month in Big Lake, Alaska, with an average relative humidity of 88%.

When is Daylight Saving Time (DST) in Big Lake?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Big Lake, Alaska, 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 is the driest month in Big Lake?

April and May are months with the least rain when the rain falls for 11.4 days and typically aggregates up to 0.59" (15mm) of rain.

What is the least humid month in Big Lake?

May is the least humid month, with an average relative humidity of 64%.

What month has the most sunshine in Big Lake?

May has the most sunshine of the year in Big Lake, Alaska, with an average of 11.9h of sunshine.

What are the months with the highest UV index in Big Lake?

The months with the highest UV index are May through July, with an average maximum UV index of 4.

When it does not snow in Big Lake?

June through August are months without snowfall in Big Lake.

When are the longest days in Big Lake?

With an average of 19h and 18min of daylight, June has the longest days of the year in Big Lake.

What is the hottest time of year in Big Lake?

July is the month that records the highest temperatures in Big Lake, with averages ranging from a high of 64.8°F (18.2°C) to a low of 50.2°F (10.1°C).

What is the wettest month in Big Lake?

September is the month with the most rainfall in Big Lake. Rain falls for 15.1 days and accumulates 1.77" (45mm) of precipitation.

What is the snowiest month in Big Lake?

The month with the most snowfall in Big Lake, Alaska, is December, when snow falls for 11.2 days and typically aggregates up to 5.67" (144mm) of snow.

What is the month with the shortest days in Big Lake?

With an average of 5h and 30min of daylight, December has the shortest days of the year in Big Lake, Alaska.

What is the month with the least sunshine in Big Lake?

December has the least sunshine of the year, with an average of 3.8h of sunshine.

What is the month with the lowest UV index in Big Lake?

With an average maximum UV index of 1, December is the month with the lowest UV index in Big Lake.

Average temperature
Big Lake, AK

Average temperature - Big Lake, AK

The warmest month (with the highest average high temperature) is July (64.8°F).
The month with the lowest average high temperature is January (19.2°F).

The month with the highest average low temperature is July (50.2°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

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Average pressure
Big Lake, AK

Average pressure - Big Lake, AK

The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.68"Hg).

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Average wind speed
Big Lake, AK

Average wind speed - Big Lake, AK

The windiest month (with the highest average wind speed) is November (4.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

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Average rainfall
Big Lake, AK

Average rainfall - Big Lake, AK

The wettest month (with the highest rainfall) is September (1.77").
The driest months (with the least rainfall) are April and May (0.59").

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Average rainfall days
Big Lake, AK

Average rainfall days - Big Lake, AK

The month with the highest number of rainy days is August (17.4 days).
The month with the least rainy days is February (7.4 days).

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Average snowfall
Big Lake, AK

Average snowfall - Big Lake, AK

The month with the highest snowfall is December (5.67").
The months with the least snowfall are June, July and August (0").

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Average snowfall days
Big Lake, AK

Average snowfall days - Big Lake, AK

The month with the highest number of snowfall days is December (11.2 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Big Lake, AK

Average daylight / Average sunshine - Big Lake, AK

The month with the longest days is June (Average daylight: 19h and 18min).
The month with the shortest days is December (Average daylight: 5h and 30min).

The month with the most sunshine is May (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).

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Average sunshine days
Big Lake, AK

Average sunshine days - Big Lake, AK

The month with the most sunshine days is January (17 days).
The month with the least sunshine days is August (11.6 days).

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Average visibility
Big Lake, AK

Average visibility - Big Lake, AK

The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).

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Big Lake, Alaska, USA

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