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Best time to visit Hamilton
Data source：Meteostat
Last updated：2025-09
Weather in Hamilton throughout the year
- Spring (March–May): Average 36–57°F, climate transitioning from cold to warm, moderate rainfall. Common activities: Late maple leaf viewing, outdoor walks. Suggested clothing: Warm jacket, sweater, long pants.
- Summer (June–August): Average 65–71°F, warm and humid climate, most rainfall in July. Common activities: Outdoor picnics, hiking, water activities. Suggested clothing: Light and breathable clothing, rain gear.
- Autumn (September–November): Average 63–42°F, climate transitioning from mild to cool, decreased rainfall. Common activities: Maple leaf viewing, fruit picking. Suggested clothing: Jacket, comfortable long pants.
- Winter (December–February): Average -37–34°F, cold climate, low probability of snowfall, moderate rainfall. Common activities: Indoor activities, skiing (requires travel to other areas). Suggested clothing: Heavy coat, warm clothing, hat, gloves, scarf.
Weather in Hamilton
Annual average temperature: approx. 49.6°F / Annual rainfall: approx. 852 mm / Summer humidity: 65%–75% / Rainiest month: July
Hamilton weather by month
Month
Temperature (°F)
Rainfall (mm)
January
26.6°F
75.2
February
30.2°F
67.5
March
36.3°F
77.3
April
46.2°F
78
May
57.4°F
57
June
65.8°F
79.3
July
71.1°F
131.8
August
69.3°F
86.8
September
63.9°F
36.3
October
52°F
43.6
November
42.1°F
44.1
December
34.2°F
75.5
7-day weather forecast for Hamilton
10/30
Friday
Sunny
59.4°F/46.2°F
10/31
Saturday
Sunny
57.7°F/41.4°F
11/1
Sunday
Overcast
59.7°F/44.3°F
11/2
Monday
Overcast
64.6°F/49.3°F
11/3
Tuesday
Overcast
63.2°F/54.9°F
11/4
Wednesday
Overcast
64.9°F/56.8°F
11/5
Thursday
Patchy light drizzle
61.5°F/56.1°F
