Climate and monthly weather forecastBig Lake, AK
Climate and monthly weather forecast
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 »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
Average pressure
Big Lake, AK
- Average pressure in January:
29.71"Hg - Average pressure in February:
29.83"Hg - Average pressure in March:
29.77"Hg - Average pressure in April:
29.82"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.86"Hg - Average pressure in September:
29.75"Hg - Average pressure in October:
29.71"Hg - Average pressure in November:
29.68"Hg - Average pressure in December:
29.68"Hg
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).
Average wind speed
Big Lake, AK
- Average wind speed in January:
4.5mph - Average wind speed in February:
4.3mph - Average wind speed in March:
4.3mph - Average wind speed in April:
4.4mph - Average wind speed in May:
4.7mph - Average wind speed in June:
4.5mph
- Average wind speed in July:
4.2mph - Average wind speed in August:
4.2mph - Average wind speed in September:
4.4mph - Average wind speed in October:
4.5mph - Average wind speed in November:
4.9mph - Average wind speed in December:
4.8mph
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).
Average humidity
Big Lake, AK
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is May (64%).
Average rainfall
Big Lake, AK
- Average rainfall in January:
0.63" - Average rainfall in February:
0.67" - Average rainfall in March:
0.71" - Average rainfall in April:
0.59" - Average rainfall in May:
0.59" - Average rainfall in June:
0.75"
- Average rainfall in July:
1.22" - Average rainfall in August:
1.46" - Average rainfall in September:
1.77" - Average rainfall in October:
1.54" - Average rainfall in November:
0.94" - Average rainfall in December:
1.1"
The wettest month (with the highest rainfall) is September (1.77").
The driest months (with the least rainfall) are April and May (0.59").
Average rainfall days
Big Lake, AK
- Average rainfall days in January:
8 days - Average rainfall days in February:
7.4 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
11.4 days - Average rainfall days in May:
10.6 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
13.4 days - Average rainfall days in August:
17.4 days - Average rainfall days in September:
15.1 days - Average rainfall days in October:
14.7 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
8.7 days
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).
Average snowfall
Big Lake, AK
- Average snowfall in January:
3.23" - Average snowfall in February:
4.06" - Average snowfall in March:
4.06" - Average snowfall in April:
1.61" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is December (5.67").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Big Lake, AK
- Average snowfall days in January:
8.7 days - Average snowfall days in February:
11.1 days - Average snowfall days in March:
9.9 days - Average snowfall days in April:
4.9 days - Average snowfall days in May:
0.5 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.3 days - Average snowfall days in October:
1.7 days - Average snowfall days in November:
8.5 days - Average snowfall days in December:
11.2 days
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).
Average daylight / Average sunshine
Big Lake, AK
- Average daylight in January:
6h and 30min - Average daylight in February:
9h and 0min - Average daylight in March:
11h and 54min - Average daylight in April:
14h and 48min - Average daylight in May:
17h and 36min - Average daylight in June:
19h and 18min
- Average daylight in July:
18h and 24min - Average daylight in August:
15h and 48min - Average daylight in September:
12h and 54min - Average daylight in October:
10h and 0min - Average daylight in November:
7h and 12min - Average daylight in December:
5h and 30min
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).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
5h and 30min - Average sunshine in March:
7h and 6min - Average sunshine in April:
8h and 42min - Average sunshine in May:
11h and 54min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
11h and 12min - Average sunshine in August:
10h and 6min - Average sunshine in September:
7h and 48min - Average sunshine in October:
6h and 24min - Average sunshine in November:
4h and 42min - Average sunshine in December:
3h and 48min
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).
Average sunshine days
Big Lake, AK
- Average sunshine days in January:
17 days - Average sunshine days in February:
13 days - Average sunshine days in March:
16.1 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
16.2 days - Average sunshine days in June:
13.9 days
- Average sunshine days in July:
14.7 days - Average sunshine days in August:
11.6 days - Average sunshine days in September:
12.2 days - Average sunshine days in October:
14.1 days - Average sunshine days in November:
15.1 days - Average sunshine days in December:
15.4 days
The month with the most sunshine days is January (17 days).
The month with the least sunshine days is August (11.6 days).
Average UV index
Big Lake, AK
The months with the highest UV index are May, June and July (UV index 4).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Big Lake, AK
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is May (Cloud cover 38).
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).





