Climate Insights for Portage Creek Airport

Dillingham Census Area, Alaska, United States

Hottest
July
18°C peak
Coldest
January
-11°C low
Wettest
September
119mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Portage Creek Airport is cool. The average annual temperature is 4°C and approximately 918mm of precipitation falls per year. Portage Creek Airport receives a notable amount of rainfall throughout the year, including during its driest month. Portage Creek Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, December, February, when temperatures can drop to -11°C. Snowfall occurs from January to December, with around 174cm accumulating over the season.

Temperature

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

Temperatures in Portage Creek Airport vary considerably across the year, with a 29°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 18°C with a mean of 15°C. The coldest month is January, when overnight lows fall to -11°C and the daily average is -8°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between March and April, with a 7°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm 125mm 150mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 43mm Snow: 21mm Feb Precipitation: 67mm Snow: 43mm Mar Precipitation: 59mm Snow: 37mm Apr Precipitation: 52mm Snow: 10mm May Precipitation: 86mm Snow: 1mm Jun Precipitation: 63mm Snow: 0mm Jul Precipitation: 68mm Snow: 0mm Aug Precipitation: 103mm Snow: 0mm Sep Precipitation: 119mm Snow: 0mm Oct Precipitation: 105mm Snow: 3mm Nov Precipitation: 76mm Snow: 23mm Dec Precipitation: 78mm Snow: 34mm
Precipitation
Snow

Portage Creek Airport is a moderately rainy area, receiving approximately 918mm of precipitation annually, which averages out to around 77mm per month. The wettest month is September, averaging 119mm of rainfall. October and August also tend to see above-average precipitation. The driest month is January, with just 43mm. That's 76mm less than September, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 174cm accumulating over the season. February typically sees the most snow at around 43cm.

Wind

0km/h 5km/h 10km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 6km/h Feb Wind Speed: 6km/h Mar Wind Speed: 5km/h Apr Wind Speed: 4km/h May Wind Speed: 4km/h Jun Wind Speed: 4km/h Jul Wind Speed: 4km/h Aug Wind Speed: 5km/h Sep Wind Speed: 5km/h Oct Wind Speed: 5km/h Nov Wind Speed: 5km/h Dec Wind Speed: 5km/h
Wind Speed

Portage Creek Airport is relatively calm, with an average annual wind speed of 5km/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 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

Seasons

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

76 days until Autumn

It is currently summer in Portage Creek Airport, which began on June 21, 2026. Portage Creek Airport 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 18°C, while the coldest stretch bottoms out in January near -11°C. Autumn is next, beginning on September 23, 2026 — 76 days from now.

Spring

Temperatures range from -6 to 11°C. Precipitation is moderate at around 196mm for the season, averaging 65mm per month. Winds are generally light, averaging 5km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 9 to 18°C. Precipitation is moderate at around 234mm for the season, averaging 78mm per month. Winds are generally light, averaging 4km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from -4 to 14°C. Precipitation is moderate at around 301mm for the season, averaging 100mm per month. Expect around 27cm of snow accumulation during this period. Winds are generally light, averaging 5km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from -11 to -1°C. Precipitation is moderate at around 187mm for the season, averaging 62mm per month. Expect around 99cm of snow accumulation during this period. Winds are generally light, averaging 6km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.

Monthly Climate Data

The table below shows monthly climate averages for Portage Creek Airport 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
-11 °C
-5 °C
6 km/h
43 mm
21 cm
Feb
-6 °C
-1 °C
6 km/h
67 mm
43 cm
Mar
-6 °C
1 °C
5 km/h
59 mm
37 cm
Apr
0 °C
7 °C
4 km/h
52 mm
10 cm
May
5 °C
11 °C
4 km/h
86 mm
1 cm
Jun
9 °C
15 °C
4 km/h
63 mm
0 cm
Jul Current
12 °C
18 °C
4 km/h
68 mm
0 cm
Aug
12 °C
17 °C
5 km/h
103 mm
0 cm
Sep
8 °C
14 °C
5 km/h
119 mm
0 cm
Oct
3 °C
8 °C
5 km/h
105 mm
3 cm
Nov
-4 °C
2 °C
5 km/h
76 mm
23 cm
Dec
-8 °C
-2 °C
5 km/h
78 mm
34 cm
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