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Jasper vs Tromsø
Comparing Jasper change · Tromsø change
Jasper and Tromsø have nearly identical year-round temperatures; Tromsø is the wetter, with 727 mm more rain a year, and Jasper the sunnier.
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 727 mm 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 (°C) Jasper runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jasper | -3 | 1 | 4 | 11 | 17 | 20 | 24 | 23 | 18 | 10 | 2 | -4 |
| Tromsø | -1 | -1 | 1 | 4 | 9 | 13 | 16 | 15 | 11 | 5 | 2 | 0 |
| Difference | +2 | -2 | -4 | -7 | -8 | -7 | -7 | -8 | -7 | -5 | — | +4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Jasper | -3 | 1 | 4 | 11 | 17 | 20 |
| Tromsø | -1 | -1 | 1 | 4 | 9 | 13 |
| Difference | +2 | -2 | -4 | -7 | -8 | -7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Jasper | 24 | 23 | 18 | 10 | 2 | -4 |
| Tromsø | 16 | 15 | 11 | 5 | 2 | 0 |
| Difference | -7 | -8 | -7 | -5 | — | +4 |
Avg low (°C) Tromsø runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jasper | -15 | -13 | -9 | -4 | 1 | 5 | 7 | 6 | 2 | -2 | -8 | -14 |
| Tromsø | -5 | -6 | -4 | -2 | 2 | 6 | 9 | 8 | 5 | 1 | -2 | -4 |
| Difference | +9 | +7 | +4 | +2 | +2 | +1 | +2 | +2 | +3 | +3 | +6 | +10 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Jasper | -15 | -13 | -9 | -4 | 1 | 5 |
| Tromsø | -5 | -6 | -4 | -2 | 2 | 6 |
| Difference | +9 | +7 | +4 | +2 | +2 | +1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Jasper | 7 | 6 | 2 | -2 | -8 | -14 |
| Tromsø | 9 | 8 | 5 | 1 | -2 | -4 |
| Difference | +2 | +2 | +3 | +3 | +6 | +10 |
Precipitation (mm) Tromsø runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jasper | 22 | 14 | 21 | 18 | 32 | 55 | 54 | 45 | 33 | 27 | 27 | 17 |
| Tromsø | 109 | 94 | 98 | 70 | 56 | 57 | 74 | 89 | 111 | 129 | 93 | 110 |
| Difference | +87 | +80 | +77 | +52 | +24 | +2 | +21 | +44 | +78 | +102 | +66 | +93 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Jasper | 22 | 14 | 21 | 18 | 32 | 55 |
| Tromsø | 109 | 94 | 98 | 70 | 56 | 57 |
| Difference | +87 | +80 | +77 | +52 | +24 | +2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Jasper | 54 | 45 | 33 | 27 | 27 | 17 |
| Tromsø | 74 | 89 | 111 | 129 | 93 | 110 |
| Difference | +21 | +44 | +78 | +102 | +66 | +93 |
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.
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.
← change Jasper · change Tromsø → · Jasper page · Tromsø page