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North Slope Borough (Wainwright)
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United States weather

Weather in North Slope Borough, Alaska for September 2025

Your guide to North Slope Borough weather in September - trends and predictions

    Snow Forecast ❄️

  • North Slope Borough typically experiences moderate snowfall in September, with an average of 8 snowy days.
    According to North Slope Borough snow forecast for September 2025, 9 snowy days are expected until the end of the month. The closest date with snow is Wednesday, September 17.

    • Temperatures

  • Until now, September 2025 in North Slope Borough is slightly cooler than the historical average by -1.5 °F.

  • The forecast for the next days in North Slope Borough predicts a temperature of 0.4 °F, which is cooler than the historical average.

  • In general, the average temperature in North Slope Borough at the beginning of September is 8.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of -1.1 °F by the end of September.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
14
Dry days
Average rainy days
8
Rainy days
Average snowy days
8
Snow days
Average temperatures
5°/2°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
82 %
Avg humidity

North Slope Borough Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
8°
2
Overcast
9°
3
Light rain
9°
4
Patchy rain possible
9°
5
Overcast
9°
6
Patchy rain possible
7°
7
Patchy rain possible
8°
8
Light drizzle
5°
9
Patchy rain possible
7°
10
Patchy rain possible
5°
11
Light drizzle
5°
12
Fog
3°
13
Patchy rain possible
3°
14
Overcast
5°
15
Fog
5°
16
Sunny
5°
17
Patchy rain possible
2°
18
Patchy rain possible
4°
19
Patchy rain possible
2°
20
Overcast
1°
21
Heavy snow
0°
22
Moderate snow
1°
23
Light snow
1°
24
Light snow
-2°
25
Light snow showers
-0°
26
Light snow
-4°
27
Freezing fog
-6°
28
Mist
-3°
29
Cloudy
2°
30
Partly cloudy
5°

Temperatures trend during September in North Slope Borough

See the weather trend as well as the moving average line

September weather in North Slope Borough day by day

Click on a date for more information
August October
Date Weather Temperatures Rain Snow More
Sept. 1 Overcast
Overcast
 8° /4° 1.3 mm 0 cm
Sept. 2 Overcast
Overcast
 9° /1° 2.9 mm 0 cm
Sept. 3 Light rain
Light rain
 9° /3° 3.7 mm 0 cm
Sept. 4 Patchy rain possible
Patchy rain possible
 9° /4° 0.3 mm 0 cm
Sept. 5 Overcast
Overcast
 9° /3° 0.2 mm 0 cm
Sept. 6 Patchy rain possible
Patchy rain possible
 7° /3° 0.7 mm 0 cm
Sept. 7 Patchy rain possible
Patchy rain possible
 8° /1° 0 mm 0 cm
Sept. 8 Light drizzle
Light drizzle
 5° /1° 1 mm 0 cm
Sept. 9 Patchy rain possible
Patchy rain possible
 7° /3° 0.5 mm 0 cm
Sept. 10 Patchy rain possible
Patchy rain possible
 5° /3° 0.3 mm 0 cm
Sept. 11 Light drizzle
Light drizzle
 5° /1° 0.8 mm 0 cm
Sept. 12 Fog
Fog
 3° /0° 2.8 mm 2 cm
Sept. 13 Patchy rain possible
Patchy rain possible
 3° /1° 2.4 mm 1.2 cm
Sept. 14 Overcast
Overcast
 5° /1° 0.8 mm 0.5 cm
Sept. 15 Fog
Fog
 5° /0° 0 mm 0 cm
Sept. 16 Sunny
Sunny
 5° /-1° 0 mm 0 cm
Sept. 17 Patchy rain possible
Patchy rain possible
 2° /0° 0.3 mm 0 cm
Sept. 18 Patchy rain possible
Patchy rain possible
 4° /1° 0.5 mm 0 cm
Sept. 19 Patchy rain possible
Patchy rain possible
 2° /0° 0.2 mm 0.1 cm
Sept. 20 Overcast
Overcast
 1° /-1° 0 mm 0 cm
Sept. 21 Heavy snow
Heavy snow
 0° /-1° 3 mm 1.8 cm
Sept. 22 Moderate snow
Moderate snow
 1° /-1° 0.7 mm 0.5 cm
Sept. 23 Light snow
Light snow
 1° /-2° 0.2 mm 0.1 cm
Sept. 24 Light snow
Light snow
 -2° /-3° 0.4 mm 0.2 cm
Sept. 25 Light snow showers
Light snow showers
 0° /-4° 0.3 mm 0.2 cm
Sept. 26 Light snow
Light snow
 -4° /-8° 0.1 mm 0.1 cm
Sept. 27 Freezing fog
Freezing fog
 -6° /-10° 0 mm 0 cm
Sept. 28 Mist
Mist
 -3° /-10° 0 mm 0 cm
Sept. 29 Cloudy
Cloudy
 2° /-1° 0 mm 0 cm
Sept. 30 Partly cloudy
Partly cloudy
 5° /0° 0 mm 0 cm
Next
Important Notice
Our weather forecast for North Slope Borough in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the North Slope Borough forecast closer to your planned date for the most up-to-date weather information.
Change Month
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North Slope Borough in September - FAQ

What are the expected maximum and minimum temperatures in North Slope Borough during September?
During September, expect a variety of temperatures with highs around 5° and lows near 2°, suitable for diverse activities and preferences.
How much rainfall should be expected in North Slope Borough during September?
In September, North Slope Borough can expect light to moderate rainfall, totaling 29.5 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in North Slope Borough in September 2025?
North Slope Borough experiences an average snowfall of 3.29 cm during September, occurring over 8 days.
What are the typical wind conditions in North Slope Borough during September?
The average wind speed in North Slope Borough during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

North Slope Borough snow forecast September 2025

Track daily snowfall levels and discover North Slope Borough’s snowy potential this September ❄️

September rainfall patterns in North Slope Borough

Explore the daily rainfall trends and prepare for North Slope Boroughs September weather 💧
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Wainwright
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Location coordinates Where is North Slope Borough?

Get accurate weather forecasts for North Slope Borough, located at latitude 70.637 and longitude -160.038. Stay updated with localized weather information tailored for North Slope Borough.

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