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Jasper vs Tromsø

Dfb Warm-summer humid continentalDfc Subarctic

Comparing Jasper change · Tromsø change

Bottom line

Jasper and Tromsø have nearly identical year-round temperatures; Tromsø is the wetter, with 29 in more rain a year, and Jasper the sunnier.

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

Wetter Tromsø 29 in more a year

Sunnier Jasper 9 pp less cloud

Colder winters Jasper 16°F colder nights

How the seasons compare

The differences between Jasper and Tromsø, in everyday terms.

Summers

Jasper has much hotter summers

Jasper: Mild
Tromsø: Cool

Winters

Tromsø has much milder winters

Jasper: Very cold
Tromsø: Cold

Rain & snow

Tromsø is much wetter

Jasper: Fairly dry
Tromsø: Wet

Sky

Jasper is sunnier

Jasper: Often cloudy
Tromsø: Often grey

Month-by-month charts

Temperature

Jasper and Tromsø run remarkably close all year.

Precipitation

Tromsø is the wetter — about 29 in more across the year.

Clear skies

Jasper 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) Jasper runs higher most of the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Jasper	27	33	40	51	62	68	75	74	64	50	35	26
Tromsø	30	30	33	39	48	55	61	59	52	41	36	33
Difference	+4	-3	-7	-12	-14	-13	-13	-15	-13	-9	+1	+7

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Jasper	27	33	40	51	62	68
Tromsø	30	30	33	39	48	55
Difference	+4	-3	-7	-12	-14	-13

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Jasper	75	74	64	50	35	26
Tromsø	61	59	52	41	36	33
Difference	-13	-15	-13	-9	+1	+7

Avg low (°F) Tromsø runs higher most of the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Jasper	6	9	17	25	33	41	45	43	36	28	17	6
Tromsø	22	22	24	29	36	43	48	47	41	34	29	25
Difference	+17	+13	+7	+4	+3	+2	+3	+4	+5	+6	+11	+19

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Jasper	6	9	17	25	33	41
Tromsø	22	22	24	29	36	43
Difference	+17	+13	+7	+4	+3	+2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Jasper	45	43	36	28	17	6
Tromsø	48	47	41	34	29	25
Difference	+3	+4	+5	+6	+11	+19

Precipitation (in) Tromsø runs higher most of the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Jasper	0.9	0.5	0.8	0.7	1.3	2.2	2.1	1.8	1.3	1.1	1.1	0.7
Tromsø	4.3	3.7	3.9	2.7	2.2	2.3	2.9	3.5	4.4	5.1	3.7	4.3
Difference	+3.4	+3.2	+3	+2	+0.9	+0.1	+0.8	+1.8	+3.1	+4	+2.6	+3.7

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Jasper	0.9	0.5	0.8	0.7	1.3	2.2
Tromsø	4.3	3.7	3.9	2.7	2.2	2.3
Difference	+3.4	+3.2	+3	+2	+0.9	+0.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Jasper	2.1	1.8	1.3	1.1	1.1	0.7
Tromsø	2.9	3.5	4.4	5.1	3.7	4.3
Difference	+0.8	+1.8	+3.1	+4	+2.6	+3.7

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Jasper	70	68	74	73	73	78	67	64	67	75	76	70
Tromsø	83	81	80	77	76	79	79	79	79	80	81	85
Difference	+13	+13	+7	+4	+3	+1	+12	+15	+12	+4	+5	+15

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Jasper	70	68	74	73	73	78
Tromsø	83	81	80	77	76	79
Difference	+13	+13	+7	+4	+3	+1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Jasper	67	64	67	75	76	70
Tromsø	79	79	79	80	81	85
Difference	+12	+15	+12	+4	+5	+15

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Jasper	94	93	90	83	73	73	73	74	77	82	91	94
Tromsø	95	95	94	92	86	80	82	85	90	95	96	96
Difference	+1	+2	+4	+9	+12	+7	+8	+11	+13	+13	+5	+2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Jasper	94	93	90	83	73	73
Tromsø	95	95	94	92	86	80
Difference	+1	+2	+4	+9	+12	+7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Jasper	73	74	77	82	91	94
Tromsø	82	85	90	95	96	96
Difference	+8	+11	+13	+13	+5	+2

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. Jasper trends → · Tromsø trends →

Methodology & sources

Jasper

Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Jasper Warden, a weather station, about 7 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.

Tromsø

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Tromso, a weather station, about 1 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →

← change Jasper · change Tromsø → · Jasper page · Tromsø page