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Whistler vs Castries
Comparing Whistler change · Castries change
Castries is the warmer of the two — about 37°F on the annual average; Castries is the wetter, with 27 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Whistler and Castries, in everyday terms.
Summers
Castries has much hotter summers
Whistler: Mild
Castries: Warm
Winters
Castries has far milder winters
Whistler: Cold
Castries: Stays warm
Rain & snow
Castries is wetter
Whistler: Wet
Castries: Very wet
Sky
Castries is sunnier
Whistler: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 37°F on the annual average.
Precipitation
Castries is the wetter — about 27 in more across the year.
Clear skies
Castries 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) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whistler | 32 | 37 | 44 | 53 | 63 | 68 | 76 | 76 | 67 | 52 | 39 | 32 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +48 | +42 | +36 | +28 | +19 | +15 | +7 | +8 | +17 | +32 | +44 | +49 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Whistler | 32 | 37 | 44 | 53 | 63 | 68 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Difference | +48 | +42 | +36 | +28 | +19 | +15 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Whistler | 76 | 76 | 67 | 52 | 39 | 32 |
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +7 | +8 | +17 | +32 | +44 | +49 |
Avg low (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whistler | 23 | 25 | 28 | 33 | 40 | 46 | 50 | 49 | 43 | 36 | 29 | 24 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +55 | +53 | +50 | +46 | +40 | +35 | +31 | +32 | +39 | +45 | +51 | +56 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Whistler | 23 | 25 | 28 | 33 | 40 | 46 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Difference | +55 | +53 | +50 | +46 | +40 | +35 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Whistler | 50 | 49 | 43 | 36 | 29 | 24 |
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +31 | +32 | +39 | +45 | +51 | +56 |
Precipitation (in) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whistler | 7.3 | 3.7 | 4.6 | 3.1 | 2.3 | 2.2 | 1.5 | 2.1 | 3 | 6 | 8.1 | 6.5 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | -2.8 | -0.8 | -2 | +0.4 | +2.2 | +3 | +7 | +9.4 | +5.8 | +3.7 | +1.5 | -0.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Whistler | 7.3 | 3.7 | 4.6 | 3.1 | 2.3 | 2.2 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Difference | -2.8 | -0.8 | -2 | +0.4 | +2.2 | +3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Whistler | 1.5 | 2.1 | 3 | 6 | 8.1 | 6.5 |
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +7 | +9.4 | +5.8 | +3.7 | +1.5 | -0.6 |
Snowfall (in)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whistler | 42 | 24.2 | 20.2 | 3.9 | 0.2 | 0 | 0 | 0 | 0 | 2 | 23.2 | 44.9 |
| Castries | — | — | — | — | — | — | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Whistler | 42 | 24.2 | 20.2 | 3.9 | 0.2 | 0 |
| Castries | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Whistler | 0 | 0 | 0 | 2 | 23.2 | 44.9 |
| Castries | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Whistler runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whistler | 71 | 68 | 73 | 72 | 70 | 71 | 56 | 55 | 58 | 69 | 73 | 71 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -32 | -30 | -31 | -23 | -17 | -12 | -6 | -9 | -7 | -18 | -27 | -30 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Whistler | 71 | 68 | 73 | 72 | 70 | 71 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -32 | -30 | -31 | -23 | -17 | -12 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Whistler | 56 | 55 | 58 | 69 | 73 | 71 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -6 | -9 | -7 | -18 | -27 | -30 |
Relative humidity (%) Whistler runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whistler | 96 | 97 | 97 | 95 | 86 | 80 | 77 | 78 | 80 | 88 | 95 | 96 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -20 | -22 | -22 | -19 | -8 | -1 | +1 | +1 | -1 | -8 | -16 | -19 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Whistler | 96 | 97 | 97 | 95 | 86 | 80 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -20 | -22 | -22 | -19 | -8 | -1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Whistler | 77 | 78 | 80 | 88 | 95 | 96 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +1 | +1 | -1 | -8 | -16 | -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. Whistler trends → · Castries trends →
Methodology & sources
Whistler
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Whistler, 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.
Castries
Temperature — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
Precipitation — 1991–2020 normals computed from 10 years of daily observations at LE Lamentin, a weather station, about 66 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 Whistler · change Castries → · Whistler page · Castries page