Home › Compare › Calgary vs Castries
Calgary vs Castries
Comparing Calgary change · Castries change
Castries is the warmer of the two — about 41°F on the annual average; Castries is the wetter, with 60 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Calgary and Castries, in everyday terms.
Summers
Castries has much hotter summers
Calgary: Mild
Castries: Warm
Winters
Castries has far milder winters
Calgary: Very cold
Castries: Stays warm
Rain & snow
Castries is much wetter
Calgary: Fairly dry
Castries: Very wet
Sky
Castries is sunnier
Calgary: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 41°F on the annual average.
Precipitation
Castries is the wetter — about 60 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calgary | 29 | 33 | 39 | 51 | 61 | 67 | 74 | 73 | 65 | 53 | 39 | 31 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +51 | +47 | +41 | +30 | +22 | +16 | +9 | +11 | +19 | +31 | +44 | +50 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Calgary | 29 | 33 | 39 | 51 | 61 | 67 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Difference | +51 | +47 | +41 | +30 | +22 | +16 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Calgary | 74 | 73 | 65 | 53 | 39 | 31 |
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +9 | +11 | +19 | +31 | +44 | +50 |
Avg low (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calgary | 8 | 11 | 18 | 28 | 37 | 45 | 50 | 48 | 40 | 29 | 18 | 10 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +70 | +66 | +60 | +51 | +43 | +36 | +31 | +34 | +42 | +52 | +63 | +70 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Calgary | 8 | 11 | 18 | 28 | 37 | 45 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Difference | +70 | +66 | +60 | +51 | +43 | +36 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Calgary | 50 | 48 | 40 | 29 | 18 | 10 |
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +31 | +34 | +42 | +52 | +63 | +70 |
Precipitation (in) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calgary | 0.4 | 0.4 | 0.7 | 1.3 | 2.3 | 4.2 | 2.5 | 2.3 | 1.4 | 0.7 | 0.6 | 0.4 |
| 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 | +4.1 | +2.6 | +1.9 | +2.3 | +2.2 | +1 | +6 | +9.2 | +7.4 | +9 | +9 | +5.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Calgary | 0.4 | 0.4 | 0.7 | 1.3 | 2.3 | 4.2 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Difference | +4.1 | +2.6 | +1.9 | +2.3 | +2.2 | +1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Calgary | 2.5 | 2.3 | 1.4 | 0.7 | 0.6 | 0.4 |
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +6 | +9.2 | +7.4 | +9 | +9 | +5.4 |
Snowfall (in)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calgary | 6.8 | 6.3 | 9.5 | 9.5 | 4.3 | 0.1 | 0 | 0 | 1 | 4.2 | 7.2 | 6.2 |
| Castries | — | — | — | — | — | — | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Calgary | 6.8 | 6.3 | 9.5 | 9.5 | 4.3 | 0.1 |
| Castries | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Calgary | 0 | 0 | 1 | 4.2 | 7.2 | 6.2 |
| Castries | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Calgary runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calgary | 68 | 67 | 68 | 71 | 71 | 70 | 58 | 58 | 61 | 67 | 68 | 65 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -30 | -28 | -26 | -22 | -19 | -12 | -8 | -11 | -10 | -15 | -22 | -25 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Calgary | 68 | 67 | 68 | 71 | 71 | 70 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -30 | -28 | -26 | -22 | -19 | -12 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Calgary | 58 | 58 | 61 | 67 | 68 | 65 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -8 | -11 | -10 | -15 | -22 | -25 |
Relative humidity (%) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calgary | 85 | 79 | 70 | 63 | 61 | 64 | 62 | 61 | 64 | 70 | 77 | 82 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -9 | -4 | +5 | +13 | +16 | +14 | +17 | +18 | +15 | +10 | +2 | -5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Calgary | 85 | 79 | 70 | 63 | 61 | 64 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -9 | -4 | +5 | +13 | +16 | +14 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Calgary | 62 | 61 | 64 | 70 | 77 | 82 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +17 | +18 | +15 | +10 | +2 | -5 |
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. Calgary trends → · Castries trends →
Methodology & sources
Calgary
Temperature & precipitation — 1991–2020 normals computed from 21 years of daily observations at Calgary Int'l A, a weather station, about 8 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 Calgary · change Castries → · Calgary page · Castries page