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Castries vs Provincetown
Comparing Castries change · Provincetown change
Castries is the warmer of the two — about 30°F on the annual average; Castries is the wetter, with 25 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Castries and Provincetown, in everyday terms.
Summers
Summers are nearly the same
Castries: Warm
Provincetown: Warm
Winters
Castries has far milder winters
Castries: Stays warm
Provincetown: Cold
Rain & snow
Castries is wetter
Castries: Very wet
Provincetown: Wet
Sky
Castries is sunnier
Castries: Fairly sunny
Provincetown: Partly cloudy
Month-by-month charts
Temperature
Castries is the warmer of the two — about 30°F on the annual average.
Precipitation
Castries is the wetter — about 25 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 |
| Provincetown | 38 | 40 | 47 | 58 | 69 | 77 | 83 | 82 | 74 | 63 | 52 | 43 |
| Difference | -42 | -40 | -33 | -23 | -14 | -6 | — | -2 | -10 | -21 | -30 | -38 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Provincetown | 38 | 40 | 47 | 58 | 69 | 77 |
| Difference | -42 | -40 | -33 | -23 | -14 | -6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Provincetown | 83 | 82 | 74 | 63 | 52 | 43 |
| Difference | — | -2 | -10 | -21 | -30 | -38 |
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 |
| Provincetown | 22 | 23 | 29 | 38 | 48 | 57 | 63 | 62 | 55 | 44 | 35 | 27 |
| Difference | -56 | -55 | -48 | -41 | -32 | -24 | -18 | -20 | -27 | -37 | -45 | -52 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Provincetown | 22 | 23 | 29 | 38 | 48 | 57 |
| Difference | -56 | -55 | -48 | -41 | -32 | -24 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Provincetown | 63 | 62 | 55 | 44 | 35 | 27 |
| Difference | -18 | -20 | -27 | -37 | -45 | -52 |
Precipitation (in) Varies through 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 |
| Provincetown | 4.5 | 4 | 5.4 | 4.6 | 3.8 | 4 | 3.6 | 3.8 | 3.9 | 5.2 | 4.4 | 5.1 |
| Difference | — | +1 | +2.8 | +1.1 | -0.7 | -1.2 | -5 | -7.6 | -4.9 | -4.5 | -5.1 | -0.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Provincetown | 4.5 | 4 | 5.4 | 4.6 | 3.8 | 4 |
| Difference | — | +1 | +2.8 | +1.1 | -0.7 | -1.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Provincetown | 3.6 | 3.8 | 3.9 | 5.2 | 4.4 | 5.1 |
| Difference | -5 | -7.6 | -4.9 | -4.5 | -5.1 | -0.8 |
Snowfall (in)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | — | — | — | — | — | — | — | — | — | — | — | — |
| Provincetown | 14.8 | 14.5 | 10.3 | 1.7 | 0 | 0 | 0 | 0 | 0 | 0.1 | 0.7 | 8.8 |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | — | — | — | — | — | — |
| Provincetown | 14.8 | 14.5 | 10.3 | 1.7 | 0 | 0 |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | — | — | — | — | — | — |
| Provincetown | 0 | 0 | 0 | 0.1 | 0.7 | 8.8 |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Provincetown 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 |
| Provincetown | 69 | 66 | 64 | 62 | 64 | 61 | 55 | 51 | 52 | 57 | 65 | 68 |
| Difference | +30 | +27 | +22 | +13 | +11 | +2 | +5 | +5 | +1 | +6 | +18 | +27 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Provincetown | 69 | 66 | 64 | 62 | 64 | 61 |
| Difference | +30 | +27 | +22 | +13 | +11 | +2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Provincetown | 55 | 51 | 52 | 57 | 65 | 68 |
| Difference | +5 | +5 | +1 | +6 | +18 | +27 |
Relative humidity (%) Varies through 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 |
| Provincetown | 85 | 83 | 82 | 82 | 82 | 82 | 78 | 78 | 78 | 79 | 81 | 83 |
| Difference | +9 | +9 | +7 | +6 | +5 | +3 | — | -1 | — | — | +2 | +6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Provincetown | 85 | 83 | 82 | 82 | 82 | 82 |
| Difference | +9 | +9 | +7 | +6 | +5 | +3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Provincetown | 78 | 78 | 78 | 79 | 81 | 83 |
| Difference | — | -1 | — | — | +2 | +6 |
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 → · Provincetown 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.
Provincetown
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Hingham (NOAA GHCN station USC00193624), about 63 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 Provincetown → · Castries page · Provincetown page