Climate Insights for Anvik Seaplane Base

Yukon-Koyukuk Census Area, Alaska, United States

Hottest
July
20°C peak
Coldest
January
-18°C low
Wettest
August
100mm rain
Best to Visit
July
Mild temps & low rain

Climate Overview

The climate in Anvik Seaplane Base is cold. The average annual temperature is 1°C and approximately 718mm of precipitation falls per year. August is the wettest month, receiving around 100mm of rainfall. Anvik Seaplane Base is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, December, February, when temperatures can drop to -18°C. Anvik Seaplane Base experiences heavy snowfall, typically from January through December.

Temperature

-20° -10° 10° 20° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: -12° Average: -16° Min: -18° Feb Max: -7° Average: -11° Min: -14° Mar Max: -4° Average: -8° Min: -12° Apr Max: 6° Average: 1° Min: -3° May Max: 14° Average: 9° Min: 5° Jun Max: 19° Average: 15° Min: 10° Jul Max: 20° Average: 16° Min: 12° Aug Max: 17° Average: 13° Min: 10° Sep Max: 12° Average: 8° Min: 6° Oct Max: 6° Average: 2° Min: 0° Nov Max: -5° Average: -9° Min: -11° Dec Max: -9° Average: -13° Min: -16°
Max
Average
Min

Anvik Seaplane Base has a wide annual temperature range, spanning 38°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 20°C with a mean of 16°C. January brings the harshest conditions, with lows dropping to -18°C and an average temperature of -16°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between October and November, with a 10°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 26mm Snow: 23mm Feb Precipitation: 49mm Snow: 44mm Mar Precipitation: 33mm Snow: 27mm Apr Precipitation: 39mm Snow: 15mm May Precipitation: 71mm Snow: 2mm Jun Precipitation: 66mm Snow: 0mm Jul Precipitation: 64mm Snow: 0mm Aug Precipitation: 100mm Snow: 0mm Sep Precipitation: 95mm Snow: 0mm Oct Precipitation: 70mm Snow: 7mm Nov Precipitation: 59mm Snow: 45mm Dec Precipitation: 47mm Snow: 41mm
Precipitation
Snow

Anvik Seaplane Base is a relatively dry area, receiving approximately 718mm of precipitation annually, which averages out to around 60mm per month. The wettest month is August, averaging 100mm of rainfall. September and May also tend to see above-average precipitation. The driest month is January, with just 26mm. That's 74mm less than August, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Anvik Seaplane Base receives heavy snowfall, accumulating around 203cm annually from January through December. The snowiest month is November, with approximately 45cm. Winter travel should account for significant snow cover.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 4km/h Feb Wind Speed: 4km/h Mar Wind Speed: 4km/h Apr Wind Speed: 3km/h May Wind Speed: 3km/h Jun Wind Speed: 3km/h Jul Wind Speed: 3km/h Aug Wind Speed: 3km/h Sep Wind Speed: 4km/h Oct Wind Speed: 4km/h Nov Wind Speed: 4km/h Dec Wind Speed: 4km/h
Wind Speed

Anvik Seaplane Base is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

3 days until Summer

It is currently spring in Anvik Seaplane Base, which began on March 20, 2026. Anvik Seaplane Base is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 20°C, while the coldest stretch bottoms out in January near -18°C. Summer is next, beginning on June 21, 2026 — 3 days from now.

Spring

Temperatures range from -12 to 14°C. Rainfall is relatively light, with around 143mm over the season and a monthly average of 48mm. Winds are generally light, averaging 3km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 10 to 20°C. Precipitation is moderate at around 230mm for the season, averaging 77mm per month. Winds are generally light, averaging 3km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from -11 to 12°C. Precipitation is moderate at around 224mm for the season, averaging 75mm per month. Expect around 53cm of snow accumulation during this period. Winds are generally light, averaging 4km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from -18 to -7°C. Rainfall is relatively light, with around 122mm over the season and a monthly average of 41mm. Expect around 107cm of snow accumulation during this period. Winds are generally light, averaging 4km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.

Best Time to Visit

Jan -16°
Feb -11°
Mar -8°
Apr
May
Jun 15°
Jul 16°
Aug 13°
Sep
Oct
Nov -9°
Dec -13°

The best time to visit Anvik Seaplane Base is during July, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 64mm per month. By contrast, January can be quite cold with temperatures dropping to -18°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Anvik Seaplane Base based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-18 °C
-12 °C
4 km/h
26 mm
23 cm
Feb
-14 °C
-7 °C
4 km/h
49 mm
44 cm
Mar
-12 °C
-4 °C
4 km/h
33 mm
27 cm
Apr
-3 °C
6 °C
3 km/h
39 mm
15 cm
May
5 °C
14 °C
3 km/h
71 mm
2 cm
Jun Current
10 °C
19 °C
3 km/h
66 mm
0 cm
Jul
12 °C
20 °C
3 km/h
64 mm
0 cm
Aug
10 °C
17 °C
3 km/h
100 mm
0 cm
Sep
6 °C
12 °C
4 km/h
95 mm
0 cm
Oct
0 °C
6 °C
4 km/h
70 mm
7 cm
Nov
-11 °C
-5 °C
4 km/h
59 mm
45 cm
Dec
-16 °C
-9 °C
4 km/h
47 mm
41 cm
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