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Bristol Bay Borough Climate

Bristol Bay Borough, Alaska

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec36.5°AVG °F

Avg Annual Temp

36.5°F

Annual Precip

21.4"

Annual Snowfall

47.4"

Extreme Heat Days

0

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
0.9"
0.9"
0.8"
1.0"
1.4"
1.8"
2.5"
3.3"
3.4"
2.3"
1.7"
1.4"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

Growing Degree Days

566

Limited to cold-tolerant varieties

Last spring frost (32°F): 05/26
First fall frost (32°F): 09/15

Seasonal Overview

Comfort ZoneSpring24°46°3.2"Summer53°57°7.5"Fall25°49°7.4"Winter17°22°3.2"20°40°60°80°100°

National Comparison

Warmer than 1% of US counties
Wetter than 17% of US counties
More seasonal variation than 36% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Bristol Bay Borough

Climate Verdict

Bristol Bay Borough has a cold, with an average annual temperature of 36.5°F, semi-arid conditions with only 21.4 inches of annual precipitation, moderate snowfall of 47.4 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are very cold — January averages 16.6°F. summers are cool, with July averaging only 56.7°F. The 40°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.

Regional Context

Bristol Bay Borough closely matches the Alaska statewide average temperature of 35.7°F, it is also noticeably drier, receiving 32.1 inches less precipitation than the state average.

Climate Profile

About Bristol Bay Borough Weather

A Chilly Northern Frontier

Bristol Bay Borough averages 36.5°F annually, a figure that highlights its position in the cold subarctic zone. This is nearly 20 degrees cooler than the average temperature found in the central United States.

Aligning With the State Average

The borough's 36.5°F average is almost identical to the Alaska state average of 35.9°F. It serves as a climatic benchmark for the transition between Alaska's maritime and continental zones.

Warmer and Drier Than Bethel

Bristol Bay is notably warmer than the Bethel Census Area, which averages only 31.4°F. It is also a drier region, receiving 21.4 inches of precipitation compared to the heavier snows of the interior.

Cold Winters and Brief Summers

January brings an average temperature of 16.6°F, while July provides a short window of 56.7°F warmth. Snowfall is moderate for Alaska at 47.4 inches, and there are no extreme heat days to speak of.

Plan for Sustained Winter Cold

Reliable heating systems are a must for the 19.1°F winter average. Residents should also prepare for 47.4 inches of snow, though the region's lower precipitation makes it easier to manage than coastal areas.

Frequently Asked Questions

What is the average temperature in Bristol Bay Borough?
The average annual temperature in Bristol Bay Borough, AK is 36.5°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Bristol Bay Borough get?
Bristol Bay Borough receives an average of 21.4 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Bristol Bay Borough?
Yes, Bristol Bay Borough receives an average of 47.4 inches of snowfall per year according to NOAA climate normals.
How hot does Bristol Bay Borough get in summer?
The average summer temperature (June-August) in Bristol Bay Borough is 55.1°F. The county experiences an average of 0 days per year above 90°F.
How cold are winters in Bristol Bay Borough?
The average winter temperature (December-February) in Bristol Bay Borough is 19.1°F. January, typically the coldest month, averages 16.6°F.

Track your own weather in Bristol Bay Borough

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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.

Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor
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