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Mount Isa vs Tusayan
Comparing Mount Isa change · Tusayan change
Mount Isa is the warmer of the two — about 30°F on the annual average; Mount Isa is the wetter, with 6 in more rain a year, and Mount Isa the sunnier.
How the seasons compare
The differences between Mount Isa and Tusayan, in everyday terms.
Summers
Mount Isa has far hotter summers
Mount Isa: Very hot
Tusayan: Warm
Winters
Mount Isa has far milder winters
Mount Isa: Cool
Tusayan: Very cold
Rain & snow
Mount Isa is wetter
Mount Isa: Fairly dry
Tusayan: Fairly dry
Sky
Mount Isa is sunnier
Mount Isa: Fairly sunny
Tusayan: Fairly sunny
Month-by-month charts
Temperature
Mount Isa is the warmer of the two — about 30°F on the annual average.
Precipitation
Mount Isa is the wetter — about 6 in more across the year.
Clear skies
Mount Isa 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mount Isa | 98 | 97 | 96 | 91 | 83 | 77 | 78 | 82 | 90 | — | 99 | 101 |
| Tusayan | 45 | 47 | 55 | 61 | 71 | 83 | 86 | 83 | 77 | 66 | 54 | 44 |
| Difference | -53 | -50 | -41 | -30 | -12 | +6 | +8 | +1 | -13 | — | -44 | -56 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Mount Isa | 98 | 97 | 96 | 91 | 83 | 77 |
| Tusayan | 45 | 47 | 55 | 61 | 71 | 83 |
| Difference | -53 | -50 | -41 | -30 | -12 | +6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Mount Isa | 78 | 82 | 90 | — | 99 | 101 |
| Tusayan | 86 | 83 | 77 | 66 | 54 | 44 |
| Difference | +8 | +1 | -13 | — | -44 | -56 |
Avg low (°F) Mount Isa runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mount Isa | 73 | 73 | 70 | 65 | 55 | 48 | 46 | 47 | 55 | — | 69 | 73 |
| Tusayan | 14 | 16 | 21 | 25 | 31 | 38 | 49 | 48 | 40 | 29 | 20 | 13 |
| Difference | -59 | -57 | -49 | -40 | -24 | -10 | +3 | +1 | -15 | — | -49 | -59 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Mount Isa | 73 | 73 | 70 | 65 | 55 | 48 |
| Tusayan | 14 | 16 | 21 | 25 | 31 | 38 |
| Difference | -59 | -57 | -49 | -40 | -24 | -10 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Mount Isa | 46 | 47 | 55 | — | 69 | 73 |
| Tusayan | 49 | 48 | 40 | 29 | 20 | 13 |
| Difference | +3 | +1 | -15 | — | -49 | -59 |
Precipitation (in) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mount Isa | 4.8 | 4.1 | 2.6 | 0.5 | 0.3 | 0.4 | 0.1 | 0.1 | 0.4 | 0.7 | 1.7 | 3 |
| Tusayan | 1.1 | 1 | 1 | 0.7 | 0.6 | 0.4 | 1.9 | 2.1 | 1.3 | 1.3 | 0.7 | 0.8 |
| Difference | -3.7 | -3.1 | -1.5 | +0.2 | +0.3 | — | +1.8 | +2 | +0.9 | +0.6 | -1 | -2.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Mount Isa | 4.8 | 4.1 | 2.6 | 0.5 | 0.3 | 0.4 |
| Tusayan | 1.1 | 1 | 1 | 0.7 | 0.6 | 0.4 |
| Difference | -3.7 | -3.1 | -1.5 | +0.2 | +0.3 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Mount Isa | 0.1 | 0.1 | 0.4 | 0.7 | 1.7 | 3 |
| Tusayan | 1.9 | 2.1 | 1.3 | 1.3 | 0.7 | 0.8 |
| Difference | +1.8 | +2 | +0.9 | +0.6 | -1 | -2.3 |
Cloud cover (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mount Isa | 61 | 55 | 43 | 28 | 25 | 17 | 15 | 13 | 19 | 30 | 44 | 52 |
| Tusayan | 48 | 49 | 46 | 41 | 37 | 27 | 50 | 46 | 32 | 32 | 37 | 48 |
| Difference | -13 | -6 | +2 | +12 | +12 | +11 | +35 | +34 | +13 | +2 | -7 | -4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Mount Isa | 61 | 55 | 43 | 28 | 25 | 17 |
| Tusayan | 48 | 49 | 46 | 41 | 37 | 27 |
| Difference | -13 | -6 | +2 | +12 | +12 | +11 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Mount Isa | 15 | 13 | 19 | 30 | 44 | 52 |
| Tusayan | 50 | 46 | 32 | 32 | 37 | 48 |
| Difference | +35 | +34 | +13 | +2 | -7 | -4 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mount Isa | 53 | 57 | 53 | 40 | 40 | 42 | 37 | 30 | 26 | 26 | 33 | 41 |
| Tusayan | 61 | 57 | 49 | 41 | 35 | 25 | 37 | 43 | 40 | 42 | 50 | 60 |
| Difference | +8 | — | -4 | +1 | -5 | -17 | — | +13 | +14 | +17 | +18 | +19 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Mount Isa | 53 | 57 | 53 | 40 | 40 | 42 |
| Tusayan | 61 | 57 | 49 | 41 | 35 | 25 |
| Difference | +8 | — | -4 | +1 | -5 | -17 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Mount Isa | 37 | 30 | 26 | 26 | 33 | 41 |
| Tusayan | 37 | 43 | 40 | 42 | 50 | 60 |
| Difference | — | +13 | +14 | +17 | +18 | +19 |
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. Mount Isa trends → · Tusayan trends →
Methodology & sources
Mount Isa
Temperature & precipitation — 1991–2020 normals computed from 17 years of daily observations at Mount Isa Mine, a weather station, about 2 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.
Tusayan
Temperature & precipitation — 1991–2020 normals computed from 24 years of daily observations at Grand Canyon NP AP, a weather station, about 4 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 Mount Isa · change Tusayan → · Mount Isa page · Tusayan page