Chefornak, Alaska Weather by Month

Chefornak is a small, remote village located in the Bethel Census Area in the southwestern part of Alaska, USA. Situated on the banks of the Kinia River, which flows into the Bering Sea, Chefornak is approximately 490 miles west of Anchorage. The village is part of the United States and is nestled within the vast tundra landscape that characterizes much of the Yukon-Kuskokwim Delta region.

Geographically, Chefornak is located in a flat, marshy area that is prone to seasonal flooding. The village covers an area of about 5 square miles, making it a small but significant community within the region. Chefornak is accessible primarily by air and boat, with a small airport and seasonal barge services providing the main means of transportation.

As of the most recent census data, Chefornak has a population of approximately 420 residents. The village is predominantly inhabited by Yup’ik Eskimos, and the community maintains a strong cultural heritage, with many residents speaking the Yup’ik language and practicing traditional subsistence activities such as fishing, hunting, and berry picking. Chefornak is part of the Lower Kuskokwim School District, which provides educational services to the community, and the village has a single school, the Amaqigciq School, serving students from kindergarten through high school.

One of the notable landmarks in Chefornak is the traditional fish camp, where residents engage in seasonal fishing and fish processing. The village is also known for its proximity to the expansive Yukon Delta National Wildlife Refuge, a protected area that offers opportunities for birdwatching, wildlife viewing, and exploring the unique tundra ecosystem.

Climate and Weather Overview

Chefornak, Alaska, experiences a subarctic climate, characterized by long, cold winters and short, cool summers. The climate is influenced by its coastal location and high latitude, which result in significant temperature variations and high levels of precipitation throughout the year. The area enjoys four distinct seasons, each bringing unique weather conditions and opportunities for various activities.

Average Monthly Climate Data

Month Average Temperature (°F) Precipitation (inches) Sunny Days
January 6 1.5 3
February 10 1.2 3
March 15 1.0 5
April 25 0.7 7
May 35 1.0 10
June 45 1.3 13
July 50 2.0 15
August 48 2.5 14
September 42 3.0 10
October 30 2.5 6
November 18 2.0 3
December 8 1.8 2

Detailed Monthly Weather Overview


January in Chefornak is characterized by cold temperatures and moderate precipitation. The average temperature hovers around 6°F, with nighttime lows often dipping below -10°F. Precipitation averages 1.5 inches, primarily in the form of snow. There are typically about 3 sunny days, offering brief respites from the winter gloom.

Natural disasters in January can include severe winter storms, which may bring heavy snowfall and strong winds, leading to hazardous driving conditions and potential power outages. Residents should be prepared with adequate winter supplies and stay updated on weather advisories.

Indoor activities are highly recommended during this month. Residents and visitors can enjoy community gatherings, local indoor events, or participate in traditional craft-making. Outdoor enthusiasts might brave the cold for activities like ice fishing or winter hiking.


February sees a slight increase in average temperatures, rising to around 10°F. Precipitation remains significant, averaging 1.2 inches, primarily as snow. The number of sunny days stays relatively constant at 3.

Severe winter storms can still occur in February, necessitating caution and preparedness. However, the cold weather provides opportunities for winter sports such as ice skating and snowmobiling.

Indoor activities remain a popular choice. Community events, indoor sports leagues, and visits to local cultural centers can provide warmth and entertainment.


March marks the beginning of the transition to spring, with average temperatures rising to 15°F. Precipitation decreases slightly to 1.0 inch, with a mix of snow and occasional rain. There are typically 5 sunny days, offering more opportunities for outdoor activities.

As winter wanes, the risk of severe storms decreases, but heavy snowfalls can still occur early in the month. Residents can start to enjoy outdoor walks and early spring activities.

This month is great for both indoor and outdoor activities. Local events such as craft fairs and community markets begin to emerge, providing a taste of the warmer seasons to come.


April brings a significant warming trend, with average temperatures reaching 25°F. Precipitation averages 0.7 inches, primarily as rain, as the region fully transitions into spring. The number of sunny days rises to 7.

The risk of flooding increases with the spring thaw and increased rainfall. However, April is a beautiful month for outdoor activities, including hiking, birdwatching, and exploring local parks.

Residents and visitors can participate in outdoor festivals and enjoy the blooming flowers. It’s also a great time for picnics and family outings in the parks.


In May, temperatures continue to rise, averaging around 35°F. Precipitation remains moderate at 1.0 inch, and there are about 10 sunny days, providing ample opportunity for outdoor activities.

The weather in May is ideal for gardening, with many residents planting their spring gardens. Outdoor activities such as cycling, hiking, and fishing become popular as the weather warms.

Local events such as farmers’ markets, community fairs, and outdoor concerts start to take place, offering a variety of activities for residents and visitors to enjoy.


June marks the beginning of summer, with average temperatures reaching 45°F. Precipitation increases slightly to 1.3 inches, and the number of sunny days rises to 13.

June is generally a pleasant month, with warm temperatures and frequent sunny days. Outdoor activities such as swimming, boating, and picnicking are highly recommended.

The village hosts various summer events, including outdoor movies and music festivals. It’s also a great time to explore the local trails and parks, enjoying the full bloom of summer flora.


July is the warmest month in Chefornak, Alaska, with average temperatures around 50°F. Precipitation averages 2.0 inches, and there are typically 15 sunny days.

The warm and relatively dry weather is perfect for outdoor activities. Residents and visitors can enjoy swimming, fishing, and barbecues. It’s also a great time for hiking and exploring the local countryside.

Chefornak celebrates Independence Day with a community fireworks display and various outdoor events. The warm evenings are perfect for outdoor dining and socializing.


In August, temperatures remain warm, averaging 48°F. Precipitation increases to 2.5 inches, and there are about 14 sunny days.

The weather remains ideal for outdoor activities. Water-based activities such as kayaking and paddleboarding are popular. The local parks and trails offer great opportunities for hiking and wildlife viewing.

August is a great month for family outings and picnics. The village often hosts summer festivals and fairs, providing entertainment for all ages.


September brings slightly cooler temperatures, averaging around 42°F. Precipitation increases to 3.0 inches, and there are typically 10 sunny days.

The transition to autumn makes September a beautiful month for outdoor activities. The cooler temperatures are perfect for hiking, biking, and enjoying the changing foliage.

Local harvest festivals and farmers’ markets become more frequent, offering fresh produce and handmade goods. It’s also a great time for scenic drives and photography.


October sees further cooling, with average temperatures around 30°F. Precipitation remains steady at 2.5 inches, and there are about 6 sunny days.

The fall colors reach their peak in October, making it a popular month for outdoor activities such as leaf-peeping, hiking, and hayrides. The cooler temperatures are also ideal for apple picking and visiting pumpkin patches.

Local Halloween events and fall festivals provide entertainment and community engagement. It’s a great month for outdoor photography and enjoying the crisp autumn air.


In November, temperatures drop to an average of 18°F. Precipitation averages 2.0 inches, primarily as snow. There are typically 3 sunny days.

As winter approaches, outdoor activities shift towards preparation for the colder months. Residents can enjoy late-season hikes and prepare their homes and gardens for winter.

November is also a time for indoor activities and holiday preparations. Community events such as Thanksgiving dinners and craft fairs provide warmth and entertainment.


December brings the onset of winter, with average temperatures around 8°F. Precipitation averages 1.8 inches, mostly as snow. There are about 2 sunny days.

The holiday season brings a festive atmosphere to Chefornak. Outdoor activities include ice skating, sledding, and winter walks. The village often hosts holiday events and decorations, adding to the seasonal charm.

Indoor activities such as holiday baking, crafting, and visiting local shops are popular. It’s also a time for community gatherings and enjoying the warmth of home.

Natural Disasters and Recommended Activities

While Chefornak, Alaska, generally experiences mild weather, it is not entirely immune to natural disasters. The most common natural threats include severe winter storms, coastal flooding, and occasional blizzards during the winter.

January to March

During the first three months of the year, the primary natural threats are severe winter storms, which can bring heavy snow and ice. Residents should be prepared with winter supplies and stay informed about weather conditions.

Indoor activities such as visiting local cultural centers, attending community events, and enjoying cozy gatherings at home are recommended.

April to June

From April to June, the risk of flooding increases due to spring rains and the thawing of winter snow. Thunderstorms can also occur, bringing heavy rain and occasional hail.

Outdoor activities such as hiking, gardening, and exploring local parks are popular. Residents should stay aware of weather advisories and be prepared for sudden changes.

July to September

During the summer months, thunderstorms are the most common natural threat, often accompanied by heavy rain and strong winds. However, these months also offer the best weather for outdoor activities.

Swimming, boating, and picnicking are highly recommended. The village hosts various summer events, providing entertainment and community engagement.

October to December

As the year comes to a close, the risk of severe weather decreases. October and November can bring occasional storms, but December typically sees the return of winter weather.

Outdoor activities such as hiking, leaf-peeping, and holiday events are popular. Residents should prepare for winter and enjoy the festive season with indoor and outdoor holiday activities.


Chefornak, Alaska, offers a diverse and engaging climate year-round, with each season bringing its own unique charm and opportunities for activities. From the cold, snowy winters to the cool, mild summers, residents and visitors can enjoy a wide range of outdoor and indoor activities throughout the year. By staying informed about weather conditions and being prepared for natural disasters, everyone can safely enjoy all that this picturesque village has to offer.

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