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Castries vs Anchorage
Comparing Castries change · Anchorage change
Castries is the warmer of the two — about 43°F on the annual average; Castries is the wetter, with 61 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Castries and Anchorage, in everyday terms.
Summers
Castries has far hotter summers
Castries: Warm
Anchorage: Mild
Winters
Castries has far milder winters
Castries: Stays warm
Anchorage: Very cold
Rain & snow
Castries is much wetter
Castries: Very wet
Anchorage: Fairly dry
Sky
Castries is sunnier
Castries: Fairly sunny
Anchorage: Often cloudy
Month-by-month charts
Temperature
Castries is the warmer of the two — about 43°F on the annual average.
Precipitation
Castries is the wetter — about 61 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Anchorage | 23 | 27 | 33 | 45 | 56 | 63 | 66 | 64 | 56 | 42 | 29 | 25 |
| Difference | -57 | -53 | -47 | -36 | -26 | -20 | -17 | -20 | -28 | -41 | -54 | -56 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Anchorage | 23 | 27 | 33 | 45 | 56 | 63 |
| Difference | -57 | -53 | -47 | -36 | -26 | -20 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Anchorage | 66 | 64 | 56 | 42 | 29 | 25 |
| Difference | -17 | -20 | -28 | -41 | -54 | -56 |
Avg low (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Anchorage | 11 | 15 | 19 | 30 | 40 | 48 | 53 | 51 | 43 | 31 | 18 | 14 |
| Difference | -67 | -62 | -59 | -49 | -40 | -32 | -28 | -31 | -39 | -51 | -62 | -66 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Anchorage | 11 | 15 | 19 | 30 | 40 | 48 |
| Difference | -67 | -62 | -59 | -49 | -40 | -32 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Anchorage | 53 | 51 | 43 | 31 | 18 | 14 |
| Difference | -28 | -31 | -39 | -51 | -62 | -66 |
Precipitation (in) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Anchorage | 0.8 | 0.9 | 0.7 | 0.4 | 0.7 | 1 | 1.8 | 2.9 | 3.1 | 1.8 | 1.2 | 1.2 |
| Difference | -3.7 | -2.1 | -1.9 | -3.1 | -3.8 | -4.2 | -6.7 | -8.5 | -5.7 | -7.9 | -8.4 | -4.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Anchorage | 0.8 | 0.9 | 0.7 | 0.4 | 0.7 | 1 |
| Difference | -3.7 | -2.1 | -1.9 | -3.1 | -3.8 | -4.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Anchorage | 1.8 | 2.9 | 3.1 | 1.8 | 1.2 | 1.2 |
| Difference | -6.7 | -8.5 | -5.7 | -7.9 | -8.4 | -4.7 |
Snowfall (in)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | — | — | — | — | — | — | — | — | — | — | — | — |
| Anchorage | 12.4 | 13.4 | 11 | 4 | 0.3 | 0 | 0 | 0 | 0.4 | 5.6 | 12.6 | 18.2 |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | — | — | — | — | — | — |
| Anchorage | 12.4 | 13.4 | 11 | 4 | 0.3 | 0 |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | — | — | — | — | — | — |
| Anchorage | 0 | 0 | 0.4 | 5.6 | 12.6 | 18.2 |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Anchorage runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Anchorage | 62 | 64 | 55 | 62 | 69 | 70 | 74 | 71 | 70 | 67 | 64 | 69 |
| Difference | +24 | +25 | +14 | +13 | +16 | +11 | +24 | +25 | +19 | +16 | +17 | +28 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Anchorage | 62 | 64 | 55 | 62 | 69 | 70 |
| Difference | +24 | +25 | +14 | +13 | +16 | +11 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Anchorage | 74 | 71 | 70 | 67 | 64 | 69 |
| Difference | +24 | +25 | +19 | +16 | +17 | +28 |
Relative humidity (%) Anchorage runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Anchorage | 92 | 91 | 89 | 83 | 78 | 78 | 81 | 82 | 84 | 88 | 92 | 93 |
| Difference | +17 | +16 | +14 | +7 | +1 | — | +2 | +3 | +5 | +9 | +13 | +16 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Anchorage | 92 | 91 | 89 | 83 | 78 | 78 |
| Difference | +17 | +16 | +14 | +7 | +1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Anchorage | 81 | 82 | 84 | 88 | 92 | 93 |
| Difference | +2 | +3 | +5 | +9 | +13 | +16 |
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. Castries trends → · Anchorage trends →
Methodology & sources
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.
Anchorage
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Anchorage Ted Stevens Intl AP (NOAA GHCN station USW00026451), about 9 km from the city centre.
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 Castries · change Anchorage → · Castries page · Anchorage page