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Niagara-on-the-Lake vs Belfast

Cfa Humid subtropicalCfb Oceanic / temperate

Comparing Niagara-on-the-Lake change · Belfast change

Bottom line

Niagara-on-the-Lake and Belfast have nearly identical year-round temperatures; Belfast is the wetter, with 12 in more rain a year, and Niagara-on-the-Lake the sunnier.

Year-round temp About the same within 2°F on the year

Wetter Belfast 12 in more a year

Sunnier Niagara-on-the-Lake 7 pp less cloud

Colder winters Niagara-on-the-Lake 14°F colder nights

How the seasons compare

The differences between Niagara-on-the-Lake and Belfast, in everyday terms.

Summers

Niagara-on-the-Lake has much hotter summers

Niagara-on-the-Lake: Warm
Belfast: Mild

Winters

Belfast has much milder winters

Niagara-on-the-Lake: Cold
Belfast: Chilly

Rain & snow

Belfast is wetter

Niagara-on-the-Lake: Moderate rainfall
Belfast: Moderate rainfall

Sky

Niagara-on-the-Lake is sunnier

Niagara-on-the-Lake: Often cloudy
Belfast: Often grey

Month-by-month charts

Temperature

Niagara-on-the-Lake and Belfast run remarkably close all year.

Precipitation

Belfast is the wetter — about 12 in more across the year.

Clear skies

Niagara-on-the-Lake has the clearer skies — the higher line.

Exact monthly numbers

Tap a metric to open its full table. Desktop shows all twelve months; on a phone each metric splits into Jan–Jun and Jul–Dec.

Avg high (°F) Varies through the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Niagara-on-the-Lake	33	34	40	51	62	72	79	78	72	59	48	38
Belfast	46	48	51	55	60	64	67	66	62	56	51	47
Difference	+14	+14	+10	+4	-2	-9	-12	-12	-9	-3	+3	+9

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Niagara-on-the-Lake	33	34	40	51	62	72
Belfast	46	48	51	55	60	64
Difference	+14	+14	+10	+4	-2	-9

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Niagara-on-the-Lake	79	78	72	59	48	38
Belfast	67	66	62	56	51	47
Difference	-12	-12	-9	-3	+3	+9

Avg low (°F) Varies through the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Niagara-on-the-Lake	22	23	29	38	48	59	66	66	59	48	38	29
Belfast	36	36	38	41	45	50	53	53	50	45	41	37
Difference	+14	+13	+9	+3	-2	-9	-12	-13	-9	-3	+3	+8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Niagara-on-the-Lake	22	23	29	38	48	59
Belfast	36	36	38	41	45	50
Difference	+14	+13	+9	+3	-2	-9

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Niagara-on-the-Lake	66	66	59	48	38	29
Belfast	53	53	50	45	41	37
Difference	-12	-13	-9	-3	+3	+8

Precipitation (in) Belfast runs higher most of the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Niagara-on-the-Lake	1.8	1.4	1.7	2.9	2.6	3.1	2.4	2.1	2.6	2.4	2.1	1.7
Belfast	3.5	2.9	2.9	2.5	2.7	2.9	3	3.4	2.9	3.9	4.2	3.8
Difference	+1.7	+1.5	+1.2	-0.4	+0.1	-0.1	+0.6	+1.3	+0.4	+1.5	+2.1	+2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Niagara-on-the-Lake	1.8	1.4	1.7	2.9	2.6	3.1
Belfast	3.5	2.9	2.9	2.5	2.7	2.9
Difference	+1.7	+1.5	+1.2	-0.4	+0.1	-0.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Niagara-on-the-Lake	2.4	2.1	2.6	2.4	2.1	1.7
Belfast	3	3.4	2.9	3.9	4.2	3.8
Difference	+0.6	+1.3	+0.4	+1.5	+2.1	+2

Cloud cover (%) Belfast runs higher most of the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Niagara-on-the-Lake	78	74	73	73	72	67	63	62	62	72	75	77
Belfast	79	79	78	76	73	77	78	77	76	78	79	78
Difference	+1	+5	+6	+3	+1	+10	+15	+15	+14	+6	+3	+1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Niagara-on-the-Lake	78	74	73	73	72	67
Belfast	79	79	78	76	73	77
Difference	+1	+5	+6	+3	+1	+10

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Niagara-on-the-Lake	63	62	62	72	75	77
Belfast	78	77	76	78	79	78
Difference	+15	+15	+14	+6	+3	+1

Relative humidity (%) Belfast runs higher most of the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Niagara-on-the-Lake	86	84	80	78	77	75	73	73	74	78	81	84
Belfast	90	90	89	86	85	85	86	87	88	88	90	91
Difference	+5	+6	+8	+8	+8	+10	+14	+14	+13	+10	+9	+7

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Niagara-on-the-Lake	86	84	80	78	77	75
Belfast	90	90	89	86	85	85
Difference	+5	+6	+8	+8	+8	+10

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Niagara-on-the-Lake	73	73	74	78	81	84
Belfast	86	87	88	88	90	91
Difference	+14	+14	+13	+10	+9	+7

How both climates are changing

Both cities are warming. Each city has its own warming trend; see its trends page for the year-by-year detail. Niagara-on-the-Lake trends → · Belfast trends →

Methodology & sources

Niagara-on-the-Lake

Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Port Weller (aut), a weather station, about 11 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

Belfast

Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Stormont Castle, a weather station, about 6 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →

← change Niagara-on-the-Lake · change Belfast → · Niagara-on-the-Lake page · Belfast page