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Northwestern

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Northwestern Weather and climate

Data source：Meteostat
Update date：2025-09

Northwestern year round climate
  • Spring (March–May): Average -33–45°F, cold and humid climate with relatively low rainfall, but staying warm is still necessary. Common activities: Hiking, birdwatching (with appropriate clothing). Recommended clothing: Warm waterproof jacket, sweater, waterproof pants, warm hat, gloves and scarf.
  • Summer (June–August): Average 50–51°F, cool climate with moderate rainfall. Common activities: Hiking, camping, exploring fjords and waterfalls. Recommended clothing: Lightweight breathable jacket, long-sleeved shirt, comfortable long pants, waterproof jacket for backup.
  • Autumn (September–November): Average 45–35°F, the climate turns cooler, rainfall increases, and the weather is changeable. Common activities: Viewing the Northern Lights (depending on weather conditions), photography. Recommended clothing: Warm waterproof jacket, waterproof pants, sweater, warm hat, gloves and scarf.
  • Winter (December–February): Average -4.0–-34.0°F, cold climate, snowfall may be less, but temperatures are low and windy. Common activities: Skiing, snowshoeing (if there is snow). Recommended clothing: Thick warm waterproof jacket, waterproof pants, warm hat, scarf, gloves, warm underwear, snow boots.
Northwestern climatological average

Annual average temperature: approx. 38.8°F / Annual rainfall: approx. 600 mm / Summer humidity: 60%–70% / Rainiest month: March

Northwestern monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
30°F
46.1
February
29.3°F
74.3
March
30.2°F
85.1
April
36.9°F
32.8
May
45.3°F
26
June
50.2°F
30
July
52°F
32.7
August
50.5°F
45
September
45.3°F
54.7
October
35.8°F
72.7
November
35.1°F
51.7
December
24.8°F
49.3
Northwestern weather for the next seven days
10/22
Wednesday
Blowing snow
32.1°F/26°F
10/23
Thursday
Sunny
32.5°F/26.5°F
10/24
Friday
Heavy snow
33.9°F/28°F
10/25
Saturday
Partly Cloudy
29.9°F/24.7°F
10/26
Sunday
Heavy snow
34.5°F/32.3°F
10/27
Monday
Heavy snow
33°F/28.4°F
10/28
Tuesday
Moderate snow
29.9°F/21.7°F

Northwestern FAQ

Best time to go to the Northwest?
The best time to go to the Northwest is spring and autumn. The weather in these two seasons is cool and the hillsides are green, perfect for hiking and viewing maple leaves.
Must-visit attractions?
Must-visit spots include Nagatoro, Kawagoe, and Okano Town, which are rich in natural scenery and cultural heritage.