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Épernay vs Castries
Comparing Épernay change · Castries change
Castries is the warmer of the two — about 16°C on the annual average; Castries is the wetter, with 1314 mm more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Épernay and Castries, in everyday terms.
Summers
Castries has hotter summers
Épernay: Warm
Castries: Warm
Winters
Castries has far milder winters
Épernay: Chilly
Castries: Stays warm
Rain & snow
Castries is much wetter
Épernay: Moderate rainfall
Castries: Very wet
Sky
Castries is sunnier
Épernay: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 16°C on the annual average.
Precipitation
Castries is the wetter — about 1314 mm 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 (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Épernay | 7 | 8 | 13 | 16 | 20 | 24 | 26 | 26 | 22 | 17 | 11 | 7 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +20 | +18 | +14 | +11 | +8 | +5 | +2 | +3 | +7 | +12 | +17 | +20 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Épernay | 7 | 8 | 13 | 16 | 20 | 24 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Difference | +20 | +18 | +14 | +11 | +8 | +5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Épernay | 26 | 26 | 22 | 17 | 11 | 7 |
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +2 | +3 | +7 | +12 | +17 | +20 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Épernay | 1 | 0 | 2 | 4 | 8 | 11 | 13 | 13 | 10 | 7 | 4 | 1 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +25 | +25 | +23 | +22 | +19 | +16 | +14 | +14 | +18 | +20 | +24 | +25 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Épernay | 1 | 0 | 2 | 4 | 8 | 11 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Difference | +25 | +25 | +23 | +22 | +19 | +16 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Épernay | 13 | 13 | 10 | 7 | 4 | 1 |
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +14 | +14 | +18 | +20 | +24 | +25 |
Precipitation (mm) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Épernay | 48 | 44 | 46 | 48 | 65 | 53 | 57 | 54 | 53 | 64 | 56 | 59 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +65 | +31 | +20 | +41 | +49 | +81 | +160 | +237 | +171 | +182 | +187 | +90 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Épernay | 48 | 44 | 46 | 48 | 65 | 53 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Difference | +65 | +31 | +20 | +41 | +49 | +81 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Épernay | 57 | 54 | 53 | 64 | 56 | 59 |
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +160 | +237 | +171 | +182 | +187 | +90 |
Cloud cover (%) Épernay runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Épernay | 73 | 71 | 67 | 66 | 68 | 66 | 63 | 62 | 61 | 69 | 75 | 76 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -34 | -32 | -25 | -17 | -16 | -7 | -13 | -16 | -10 | -18 | -29 | -35 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Épernay | 73 | 71 | 67 | 66 | 68 | 66 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -34 | -32 | -25 | -17 | -16 | -7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Épernay | 63 | 62 | 61 | 69 | 75 | 76 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -13 | -16 | -10 | -18 | -29 | -35 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Épernay | 93 | 90 | 85 | 80 | 78 | 73 | 67 | 66 | 72 | 84 | 92 | 94 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -18 | -16 | -10 | -4 | -1 | +5 | +12 | +13 | +6 | -5 | -12 | -17 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Épernay | 93 | 90 | 85 | 80 | 78 | 73 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -18 | -16 | -10 | -4 | -1 | +5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Épernay | 67 | 66 | 72 | 84 | 92 | 94 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +12 | +13 | +6 | -5 | -12 | -17 |
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. Épernay trends → · Castries trends →
Épernay is projected to shift from Cfb to Cfa by the 2071–2099 window (SSP2-4.5).
Methodology & sources
Épernay
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Troyes-barberey, a weather station, about 80 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 Épernay · change Castries → · Épernay page · Castries page