Spring (March–May): Average 38–56°F, mild but still chilly, increasing rainfall. Common activities: Hiking, flower viewing (e.g., cherry blossoms, depending on blooming conditions). Recommended clothing: Warm jacket, sweater, long pants.
Summer (June–August): Average 64–76°F, warm and humid, with the most rainfall in August. Common activities: Outdoor activities, but be mindful of rain. Recommended clothing: Light and breathable clothing, rain gear.
Autumn (September–November): Average 56–69°F, comfortable and pleasant, but with a larger temperature difference between morning and evening. Common activities: Maple leaf viewing (depending on leaf color change), hiking and trekking. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Winter (December–February): Average -2.0–-33.3°F, cold, with a low probability of snowfall. Common activities: Skiing (depending on snow conditions), indoor activities. Recommended clothing: Heavy coat, warm clothing, hat, gloves, scarf.
Onuma climatological average
Annual average temperature: approx. 51.4°F / Annual rainfall: approx. 1172 mm / Summer humidity: 70%–80% / Rainiest month: August
Onuma monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
28.4°F
94
February
29.7°F
36
March
38.1°F
64.7
April
49.3°F
44.3
May
56.7°F
72
June
64.2°F
129.3
July
72.9°F
93.7
August
76.1°F
245
September
69.4°F
94.3
October
56.7°F
116.7
November
44.8°F
99.7
December
30.7°F
83
Onuma weather for the next seven days
6/16
Tuesday
Patchy rain nearby
67.1°F/55.5°F
6/17
Wednesday
Sunny
66.6°F/55.9°F
6/18
Thursday
Sunny
65.7°F/56.7°F
6/19
Friday
Patchy rain nearby
66°F/56.8°F
6/20
Saturday
Patchy rain nearby
66°F/58.8°F
6/21
Sunday
Sunny
64.1°F/57.1°F
6/22
Monday
Patchy rain nearby
56.6°F/53.5°F
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