Data source: Meteostat・Last updated: 2025-09
Spring (March–May): Average 46–64°F, mild climate with gradually increasing rainfall. Common activities: Spring outings, flower viewing. Suggested clothing: Light jacket, long-sleeved shirt.
Summer (June–August): Average 73–80°F, hot and humid with heavier rainfall, especially in July. Common activities: Visiting summer resorts, playing in streams. Suggested clothing: Light and breathable clothing, sun hat.
Autumn (September–November): Average 57–72°F, pleasant and cool and dry climate with reduced rainfall. Common activities: Maple viewing, hiking. Suggested clothing: Light jacket, long-sleeved shirt.
Winter (December–February): Average -34–34°F, cold and dry with low rainfall. Common activities: Skiing (requires higher altitudes), onsen (hot springs). Suggested clothing: Warm jacket, hat, gloves, scarf.
Annual average temperature: approx. 55.4°F / Annual rainfall: approx. 1082 mm / Summer humidity: 70%–80% / Rainiest month: July
| Month | January | February | March | April | May | June | July | August | September | October | November | December |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature | 29.7°F | 34.7°F | 46.2°F | 57.2°F | 64.9°F | 73.4°F | 79°F | 80.1°F | 72.3°F | 57.2°F | 46.2°F | 31.3°F |
| Rainfall (mm) | 12 | 21.7 | 55 | 48 | 82.3 | 127.3 | 321 | 186.3 | 130 | 41 | 30.3 | 27.3 |
| Date | 11/7Saturday | 11/8Sunday | 11/9Monday | 11/10Tuesday | 11/11Wednesday | 11/12Thursday | 11/13Friday |
|---|---|---|---|---|---|---|---|
| Weather | Sunny | Overcast | Overcast | Sunny | Sunny | Partly Cloudy | Cloudy |
| High | 49.5°F | 54.4°F | 55.7°F | 54.8°F | 58.3°F | 59.6°F | 57.9°F |
| Low | 29.4°F | 30.9°F | 36.8°F | 33.1°F | 33.3°F | 35.3°F | 39.4°F |