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Edmonton vs Castries
Comparing Edmonton change · Castries change
Castries is the warmer of the two — about 24°C on the annual average; Castries is the wetter, with 1474 mm more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Edmonton and Castries, in everyday terms.
Summers
Castries has much hotter summers
Edmonton: Mild
Castries: Warm
Winters
Castries has far milder winters
Edmonton: Bitterly cold
Castries: Stays warm
Rain & snow
Castries is much wetter
Edmonton: Fairly dry
Castries: Very wet
Sky
Castries is sunnier
Edmonton: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 24°C on the annual average.
Precipitation
Castries is the wetter — about 1474 mm 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 (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Edmonton | -6 | -3 | 2 | 11 | 18 | 21 | 24 | 23 | 18 | 10 | 0 | -5 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +32 | +29 | +25 | +16 | +10 | +7 | +5 | +6 | +11 | +18 | +28 | +32 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Edmonton | -6 | -3 | 2 | 11 | 18 | 21 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Difference | +32 | +29 | +25 | +16 | +10 | +7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Edmonton | 24 | 23 | 18 | 10 | 0 | -5 |
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +5 | +6 | +11 | +18 | +28 | +32 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Edmonton | -17 | -14 | -10 | -2 | 3 | 7 | 10 | 8 | 3 | -2 | -9 | -16 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +42 | +40 | +35 | +28 | +24 | +20 | +18 | +19 | +24 | +29 | +36 | +42 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Edmonton | -17 | -14 | -10 | -2 | 3 | 7 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Difference | +42 | +40 | +35 | +28 | +24 | +20 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Edmonton | 10 | 8 | 3 | -2 | -9 | -16 |
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +18 | +19 | +24 | +29 | +36 | +42 |
Precipitation (mm) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Edmonton | 28 | 15 | 25 | 32 | 51 | 78 | 95 | 58 | 38 | 24 | 26 | 20 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +86 | +60 | +41 | +58 | +63 | +56 | +121 | +234 | +186 | +223 | +217 | +129 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Edmonton | 28 | 15 | 25 | 32 | 51 | 78 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Difference | +86 | +60 | +41 | +58 | +63 | +56 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Edmonton | 95 | 58 | 38 | 24 | 26 | 20 |
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +121 | +234 | +186 | +223 | +217 | +129 |
Snowfall (cm)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Edmonton | 27 | 15 | 24 | 14 | 5 | 0 | 0 | 0 | 1 | 10 | 24 | 19 |
| Castries | — | — | — | — | — | — | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Edmonton | 27 | 15 | 24 | 14 | 5 | 0 |
| Castries | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Edmonton | 0 | 0 | 1 | 10 | 24 | 19 |
| Castries | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Edmonton runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Edmonton | 69 | 68 | 70 | 69 | 67 | 67 | 59 | 59 | 63 | 69 | 73 | 70 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -31 | -29 | -28 | -20 | -15 | -9 | -10 | -13 | -12 | -17 | -26 | -30 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Edmonton | 69 | 68 | 70 | 69 | 67 | 67 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -31 | -29 | -28 | -20 | -15 | -9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Edmonton | 59 | 59 | 63 | 69 | 73 | 70 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -10 | -13 | -12 | -17 | -26 | -30 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Edmonton | 92 | 89 | 79 | 68 | 65 | 68 | 69 | 68 | 70 | 76 | 85 | 89 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -16 | -14 | -4 | +8 | +13 | +11 | +10 | +11 | +9 | +3 | -6 | -13 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Edmonton | 92 | 89 | 79 | 68 | 65 | 68 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -16 | -14 | -4 | +8 | +13 | +11 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Edmonton | 69 | 68 | 70 | 76 | 85 | 89 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +10 | +11 | +9 | +3 | -6 | -13 |
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. Edmonton trends → · Castries trends →
Methodology & sources
Edmonton
Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Edmonton Woodbend, a weather station, about 24 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 Edmonton · change Castries → · Edmonton page · Castries page