Hamilton weather by month

Check out Hamilton weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Hamilton (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
-2°C maximum daytime temperature in January in Hamilton-2
-1°C maximum daytime temperature in February in Hamilton-1
4°C maximum daytime temperature in March in Hamilton4
12°C maximum daytime temperature in April in Hamilton12
19°C maximum daytime temperature in May in Hamilton19
24°C maximum daytime temperature in June in Hamilton24
27°C maximum daytime temperature in July in Hamilton27
26°C maximum daytime temperature in August in Hamilton26
21°C maximum daytime temperature in September in Hamilton21
14°C maximum daytime temperature in October in Hamilton14
8°C maximum daytime temperature in November in Hamilton8
1°C maximum daytime temperature in December in Hamilton1
Min temperature (night-time)
-9°C minimum night-time temperature in January in Hamilton-9
-9°C minimum night-time temperature in February in Hamilton-9
-4°C minimum night-time temperature in March in Hamilton-4
2°C minimum night-time temperature in April in Hamilton2
8°C minimum night-time temperature in May in Hamilton8
13°C minimum night-time temperature in June in Hamilton13
16°C minimum night-time temperature in July in Hamilton16
15°C minimum night-time temperature in August in Hamilton15
11°C minimum night-time temperature in September in Hamilton11
5°C minimum night-time temperature in October in Hamilton5
1°C minimum night-time temperature in November in Hamilton1
-6°C minimum night-time temperature in December in Hamilton-6
Heat & Humidity
No heat & humidity in January in Hamilton0
No heat & humidity in February in Hamilton0
No heat & humidity in March in Hamilton0
No heat & humidity in April in Hamilton0
No heat & humidity in May in Hamilton0
No heat & humidity in June in Hamilton0
Moderate heat & humidity in July in HamiltonM
Low heat & humidity in August in HamiltonL
No heat & humidity in September in Hamilton0
No heat & humidity in October in Hamilton0
No heat & humidity in November in Hamilton0
No heat & humidity in December in Hamilton0
Sea temperature
3°C sea temperature in January in Hamilton3
2°C sea temperature in February in Hamilton2
2°C sea temperature in March in Hamilton2
3°C sea temperature in April in Hamilton3
7°C sea temperature in May in Hamilton7
13°C sea temperature in June in Hamilton13
19°C sea temperature in July in Hamilton19
21°C sea temperature in August in Hamilton21
19°C sea temperature in September in Hamilton19
14°C sea temperature in October in Hamilton14
9°C sea temperature in November in Hamilton9
5°C sea temperature in December in Hamilton5

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Hamilton

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
9 hours of daylight per day in January in Hamilton9
11 hours of daylight per day in February in Hamilton11
12 hours of daylight per day in March in Hamilton12
13 hours of daylight per day in April in Hamilton13
15 hours of daylight per day in May in Hamilton15
15 hours of daylight per day in June in Hamilton15
15 hours of daylight per day in July in Hamilton15
14 hours of daylight per day in August in Hamilton14
12 hours of daylight per day in September in Hamilton12
11 hours of daylight per day in October in Hamilton11
10 hours of daylight per day in November in Hamilton10
9 hours of daylight per day in December in Hamilton9
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Hamilton1
UV (maximum) index 2 (Low) in February in Hamilton2
UV (maximum) index 4 (Moderate) in March in Hamilton4
UV (maximum) index 5 (Moderate) in April in Hamilton5
UV (maximum) index 7 (High) in May in Hamilton7
UV (maximum) index 8 (Very High) in June in Hamilton8
UV (maximum) index 8 (Very High) in July in Hamilton8
UV (maximum) index 7 (High) in August in Hamilton7
UV (maximum) index 6 (High) in September in Hamilton6
UV (maximum) index 3 (Moderate) in October in Hamilton3
UV (maximum) index 2 (Low) in November in Hamilton2
UV (maximum) index 1 (Low) in December in Hamilton1

Rainfall in Hamilton

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
12 days with some rainfall in January in Hamilton12
10 days with some rainfall in February in Hamilton10
12 days with some rainfall in March in Hamilton12
11 days with some rainfall in April in Hamilton11
11 days with some rainfall in May in Hamilton11
10 days with some rainfall in June in Hamilton10
9 days with some rainfall in July in Hamilton9
9 days with some rainfall in August in Hamilton9
10 days with some rainfall in September in Hamilton10
11 days with some rainfall in October in Hamilton11
13 days with some rainfall in November in Hamilton13
14 days with some rainfall in December in Hamilton14
Average monthly rainfall (mm)
61 mm monthly rainfall in January in Hamilton61
55 mm monthly rainfall in February in Hamilton55
69 mm monthly rainfall in March in Hamilton69
73 mm monthly rainfall in April in Hamilton73
73 mm monthly rainfall in May in Hamilton73
77 mm monthly rainfall in June in Hamilton77
74 mm monthly rainfall in July in Hamilton74
91 mm monthly rainfall in August in Hamilton91
84 mm monthly rainfall in September in Hamilton84
70 mm monthly rainfall in October in Hamilton70
79 mm monthly rainfall in November in Hamilton79
81 mm monthly rainfall in December in Hamilton81

More about Hamilton

Hamilton by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Ontario (Hamilton) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Hamilton?

Hamilton has a cold climate with hot summers and some rainfall in all months.

Metric (°C / mm)  |  Imperial (°F / inches)

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Tropical storm risk: Hamilton hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
0
0
0
0
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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More about Canada

Compare Hamilton with the USA

Below the Hamilton chart shows average maximum daytime temperature for Hamilton, Ontario, Canada and the USA (Washington).

Maximum daytime temperature (°C)

Hamilton, Ontario, Canada
USA (Washington)
5
7
4
13
12
19
19
24
24
29
27
31
26
30
21
26
14
20
8
14
1
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
-2
-1

Metric (°C / mm)  |  Imperial (°F / inches)

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