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Bormio vs Castries
Comparing Bormio change · Castries change
Castries is the warmer of the two — about 39°F on the annual average; Castries is the wetter, with 59 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Bormio and Castries, in everyday terms.
Summers
Castries has far hotter summers
Bormio: Mild
Castries: Warm
Winters
Castries has far milder winters
Bormio: Very cold
Castries: Stays warm
Rain & snow
Castries is much wetter
Bormio: Fairly dry
Castries: Very wet
Sky
Castries is sunnier
Bormio: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 39°F on the annual average.
Precipitation
Castries is the wetter — about 59 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bormio | 35 | 38 | 45 | 51 | 58 | 65 | 69 | 69 | 61 | 53 | 43 | 36 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +45 | +42 | +36 | +31 | +25 | +18 | +15 | +15 | +23 | +31 | +40 | +45 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Bormio | 35 | 38 | 45 | 51 | 58 | 65 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Difference | +45 | +42 | +36 | +31 | +25 | +18 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Bormio | 69 | 69 | 61 | 53 | 43 | 36 |
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +15 | +15 | +23 | +31 | +40 | +45 |
Avg low (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bormio | 20 | 20 | 27 | 33 | 41 | 47 | 50 | 51 | 45 | 38 | 30 | 23 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +58 | +57 | +51 | +45 | +39 | +34 | +31 | +31 | +37 | +44 | +51 | +56 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Bormio | 20 | 20 | 27 | 33 | 41 | 47 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Difference | +58 | +57 | +51 | +45 | +39 | +34 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Bormio | 50 | 51 | 45 | 38 | 30 | 23 |
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +31 | +31 | +37 | +44 | +51 | +56 |
Precipitation (in) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bormio | 0.8 | 0.6 | 0.7 | 0.8 | 1.3 | 2.1 | 2.9 | 2.9 | 2 | 1.8 | 1.3 | 0.9 |
| 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 | +3.7 | +2.4 | +1.9 | +2.7 | +3.2 | +3.1 | +5.7 | +8.6 | +6.9 | +7.9 | +8.2 | +5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Bormio | 0.8 | 0.6 | 0.7 | 0.8 | 1.3 | 2.1 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Difference | +3.7 | +2.4 | +1.9 | +2.7 | +3.2 | +3.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Bormio | 2.9 | 2.9 | 2 | 1.8 | 1.3 | 0.9 |
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +5.7 | +8.6 | +6.9 | +7.9 | +8.2 | +5 |
Cloud cover (%) Bormio runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bormio | 62 | 65 | 68 | 72 | 74 | 70 | 64 | 63 | 64 | 64 | 66 | 64 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -23 | -26 | -26 | -23 | -21 | -12 | -14 | -17 | -13 | -12 | -20 | -24 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Bormio | 62 | 65 | 68 | 72 | 74 | 70 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -23 | -26 | -26 | -23 | -21 | -12 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Bormio | 64 | 63 | 64 | 64 | 66 | 64 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -14 | -17 | -13 | -12 | -20 | -24 |
Relative humidity (%) Bormio runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bormio | 88 | 90 | 90 | 83 | 79 | 79 | 79 | 81 | 83 | 84 | 88 | 88 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -12 | -15 | -15 | -7 | -2 | — | — | -2 | -4 | -5 | -9 | -11 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Bormio | 88 | 90 | 90 | 83 | 79 | 79 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -12 | -15 | -15 | -7 | -2 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Bormio | 79 | 81 | 83 | 84 | 88 | 88 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | — | -2 | -4 | -5 | -9 | -11 |
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. Bormio trends → · Castries trends →
Methodology & sources
Bormio
Temperature & precipitation — the official 1991–2020 climate normals from the WMO's CLINO 1991–2020 collection, measured at San_valentino_alla_muta, about 38 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.
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 Bormio · change Castries → · Bormio page · Castries page