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Castries vs Dallas
Comparing Castries change · Dallas change
Castries is the warmer of the two — about 8°C on the annual average; Castries is the wetter, with 1022 mm more rain a year.
How the seasons compare
The differences between Castries and Dallas, in everyday terms.
Summers
Dallas has much hotter summers
Castries: Warm
Dallas: Very hot
Winters
Castries has far milder winters
Castries: Stays warm
Dallas: Chilly
Rain & snow
Castries is wetter
Castries: Very wet
Dallas: Moderate rainfall
Sky
Similar amounts of sun
Castries: Fairly sunny
Dallas: Partly cloudy
Month-by-month charts
Temperature
Castries is the warmer of the two — about 8°C on the annual average.
Precipitation
Castries is the wetter — about 1022 mm more across the year.
Clear skies
The two cities see a similar amount of sun.
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) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Dallas | 14 | 16 | 20 | 25 | 29 | 33 | 35 | 35 | 31 | 26 | 19 | 14 |
| Difference | -13 | -11 | -7 | -3 | +1 | +5 | +7 | +7 | +3 | -3 | -9 | -13 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Dallas | 14 | 16 | 20 | 25 | 29 | 33 |
| Difference | -13 | -11 | -7 | -3 | +1 | +5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Dallas | 35 | 35 | 31 | 26 | 19 | 14 |
| Difference | +7 | +7 | +3 | -3 | -9 | -13 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Dallas | 2 | 5 | 9 | 13 | 18 | 22 | 24 | 24 | 20 | 14 | 8 | 4 |
| Difference | -23 | -21 | -17 | -13 | -9 | -5 | -3 | -3 | -8 | -14 | -19 | -23 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Dallas | 2 | 5 | 9 | 13 | 18 | 22 |
| Difference | -23 | -21 | -17 | -13 | -9 | -5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Dallas | 24 | 24 | 20 | 14 | 8 | 4 |
| Difference | -3 | -3 | -8 | -14 | -19 | -23 |
Precipitation (mm) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Dallas | 64 | 70 | 84 | 82 | 121 | 94 | 53 | 55 | 69 | 111 | 64 | 72 |
| Difference | -49 | -6 | +18 | -8 | +8 | -40 | -163 | -236 | -155 | -135 | -178 | -77 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Dallas | 64 | 70 | 84 | 82 | 121 | 94 |
| Difference | -49 | -6 | +18 | -8 | +8 | -40 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Dallas | 53 | 55 | 69 | 111 | 64 | 72 |
| Difference | -163 | -236 | -155 | -135 | -178 | -77 |
Cloud cover (%) Varies through 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 |
| Dallas | 53 | 57 | 56 | 53 | 56 | 46 | 39 | 40 | 41 | 42 | 48 | 54 |
| Difference | +15 | +19 | +15 | +4 | +4 | -13 | -11 | -6 | -9 | -10 | +2 | +14 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Dallas | 53 | 57 | 56 | 53 | 56 | 46 |
| Difference | +15 | +19 | +15 | +4 | +4 | -13 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Dallas | 39 | 40 | 41 | 42 | 48 | 54 |
| Difference | -11 | -6 | -9 | -10 | +2 | +14 |
Relative humidity (%) Castries 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 |
| Dallas | 75 | 75 | 74 | 72 | 73 | 69 | 60 | 57 | 63 | 66 | 72 | 75 |
| Difference | -1 | — | -1 | -4 | -4 | -10 | -19 | -21 | -16 | -13 | -7 | -2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Dallas | 75 | 75 | 74 | 72 | 73 | 69 |
| Difference | -1 | — | -1 | -4 | -4 | -10 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Dallas | 60 | 57 | 63 | 66 | 72 | 75 |
| Difference | -19 | -21 | -16 | -13 | -7 | -2 |
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 → · Dallas trends →
Both cities' Köppen climate types are projected to hold steady through 2099 (SSP2-4.5).
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.
Dallas
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Dal-ftw Wscmo AP (NOAA GHCN station USW00003927), about 24 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 Dallas → · Castries page · Dallas page